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January 21st, 2019

RifleShooter.com .308 Win Barrel Cut-Down Velocity Test

rifleshooter.com barrel .308 win cut-down test saw ammo GMM velocity magnetospeed

With barrels, one wonders “Can a little more length provide a meaningful velocity gain?” To answer that question, Rifleshooter.com performed an interesting test, cutting a .308 Win barrel from 28″ all the way down to 16.5″. The cuts were made in one-inch intervals with a rotary saw. At each cut length, velocity was measured with a Magnetospeed chronograph. To make the test even more interesting, four different types of .308 Win factory ammunition were chronographed at each barrel length.

rifleshooter.com barrel .308 win cut-down test saw ammo GMM velocity magnetospeed

READ RifleShooter.com .308 Win Barrel Cut-Down Test Article.

Test Barrel Lost 22.7 FPS Per Inch (.308 Win Chambering)
How much velocity do you think was lost, on average, for each 1″ reduction in barrel length? The answer may surprise you. With a barrel reduction from 28″ to 16.5″, the average speed loss of the four types of .308 ammo was 261 fps total. That works out to an average loss of 22.7 fps per inch. This chart shows velocity changes for all four ammo varieties:

rifleshooter.com barrel .308 win cut-down test saw ammo GMM velocity magnetospeed

Summary of Findings: The average velocity loss per inch, for all four ammo types combined, was 22.7 FPS. By ammo type, the average loss per inch was: 24.6 (Win 147 FMJ), 22.8 (IMI 150 FMJ), 20.9 (Fed GMM 168gr), and 22.5 (Win 180PP).

Interestingly, these numbers jive pretty well with estimates found in reloading manuals. The testers observed: “The Berger Reloading manual says for the 308 Winchester, ‘muzzle velocity will increase (or decrease) by approximately 20 fps per inch from a standard 24″ barrel’.”

How the Test Was Done
The testers described their procedure as follows: “Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. Average velocity and standard deviation were logged for each round. Since we would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut, we decided to eliminate gathering data on group sizes. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. The barrel was cut off using a cold saw. The test protocol was repeated for the next length. Temperature was 47° F.”

rifleshooter.com barrel .308 win cut-down test saw ammo GMM velocity magnetospeed

CLICK HERE to Read the Rifleshooter.com Test. This includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and complete data sets for each type of ammo. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. All in all, this was a very thorough test by the folks at RifleShooter.com.

Much Different Results with 6mmBR and a Longer Barrel
The results from Rifleshooter.com’s .308 barrel cut-down test are quite different than the results we recorded some years ago with a barrel chambered for the 6mmBR cartridge. When we cut our 6mmBR barrel down from 33″ to 28″, we only lost about 8 FPS per inch. Obviously this is a different cartridge type, but also our 6mmBR barrel end length was 5″ longer than Rifleshooter.com’s .308 Win start length. Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). Powder burn rates can also make a difference.

Permalink Bullets, Brass, Ammo, Gear Review, Gunsmithing 4 Comments »
January 21st, 2019

Bargain Finder 174: AccurateShooter’s Deals of the Week

Accurateshooter Bargain Finder Deals of Week

At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

1. MidwayUSA — MagnetoSpeed Sporter Chronograph, $159.99

Deals of Week Magnetospeed sporter Kit

If you have been waiting to get a Magnetospeed… wait no longer. Priced at just $159.99 at MidwayUSA, the Magnetospeed Sporter model costs less than half as much as Magnetospeed’s V3 models. This chronograph attaches directly to your barrel so you don’t have to go downrange to position tripods and set up skyscreens. For most people the Sporter Model contains all the features they need. Using Magnetospeed’s XFR adapter (sold separately), data can be transferred easily from the display module to your mobile device. READ Magnetospeed Sporter Review. NOTE: You need to add the item to cart to see the $159.99 price. This sells elsewhere up to $190.00.

2. Bruno Shooters Supply — Lapua Brass Sale

Lapua Brass Sale

This isn’t the first time we’ve featured Lapua brass from Bruno Shooters Supply. But you may want to act soon because prices are going up. Bruno’s is offering very good pricing now for existing Lapua brass inventory. However, Bruno’s managers tell us that future supplies will likely cost more — this will be the last opportunity to get Lapua Brass at low, 2018 mark-down prices. So get ready for the new shooting season and stock up on brass now with Bruno’s favorable pricing.

3. Amazon — Protektor Model Rear Bags

Protektor Model Bags

When it comes to rear bags there’s really only a few brands that the pros use and Protektor is always one of them. Protektor leather rear shooting bags are well made, hold up to abuse, and do their job rain or shine. Now you can purchase these quality Protektor rear rest bags from Amazon. That means you’re getting a very competitive price with super-fast Prime Shipping available. if you need a rear bag quickly for that next match, this is a smart option.

4. EuroOptic — Vortex Viper & Razor Close-Outs, Save Hundreds

Viper Vortex scope closeout sale discount Eurooptic

Here is an awesome deal on the popular Vortex Viper scopes, a top choice for hunters and tactical shooters. EuroOptic has slashed prices on last year’s model Vipers so you can save hundreds. Get the First Focal Plane (F1) 4-16x50mm Viper PST for $499.99. That’s a whopping $400 off the original price. Or, grab the higher-magnification F1 6-24x50mm Viper PST for $649.99, a $300 savings. Both scopes have a great reputation, and the Vortex warranty is second to none. Buy with confidence.

Viper Vortex scope closeout sale discount Eurooptic

If you want a true high-end tactical optic, there are also great deals on the premium Vortex Razor HD Gen II 4.5-27x56mm scopes — save $650.00.

5. EuroOptic — FN Pistol Sale

FN Pistol Sale

Who couldn’t use a quality pistol crafted by a legendary manufacturer for up to 45% off? EuroOptic is clearing out its FN America Pistols at super-low prices. Chose from a wide variety of models in popular chamberings such as 9mm Luger and .40 S&W. There are full-size, compact pistols, and sub-compact FN pistols on sale. For example the FNS-40 Compact NMS (.40 SW) is just $339.00, hundreds less than you’d pay for a compact Glock. If you are looking for a quality semi-auto handgun for targets shooting or self-defense, check out these deals.

6. Graf & Sons — Free Sierra Ballistics Software w/ $75 purchase

Sierra Ballistic Software

Graf & Sons is running a great promotion right now for anyone who is serious about precision hand-loading and long-range shooting. Purchase $75 worth of Sierra Bullets and get the Sierra Infinity Ballistics Software for FREE. That’s a $39.95 value just for buying the bullets you love to shoot anyway. The ballistics program is very sophisticated and includes hundreds of bullet profiles.

7. Amazon — 100-ct Pack of 7″ Reactive Splatter Targets, $22

reactive splatter targets

Anyone can print out paper targets but what’s the fun in that? For only $22.00 you can grab 100 of these multi-color reactive splatter targets and know exactly where your shots are landing. A bright-colored Hi-Viz “halo” appears each shot in the black bull. These targets are made of a weather-resistant material, so you can use them in light rain without worrying about them getting soggy or falling apart (as would normal paper targets). NOTE: Reactive splatter targets typically cost much more. With this deal each target costs just twenty-two cents, less than a quarter — a real bargain.

8. CDNN — Kryptek Sound Soldier 27 db NRR EarMuffs, $8.88

ear muff earmuff 27 nrr db kryptek highlander passive deal $8.88
Note: You get one set of muffs (either gray or camo, NOT both) for $8.88 plus S/H.

Good muffs that offer 27 db Noise Reduction and won’t spoil your cheekweld — for under ten bucks? Can’t argue with that. Right now CDNN is offering a killer deal on Kryptek Sound Soldier 27 NRR muffs that sell elsewhere for around $24.00. Get these in either Highlander Camo or Typhon Grey for just $8.88. These passive muffs have low profile shells engineered to stay out of the way when shouldering your weapon. The ergonomic headband keeps the muffs aligned, in their proper position. Purchasers report the soft leatherette ear seals are surprisingly comfortable. These muffs provide a pretty high NRR considering the low profile design. And the price, just $8.88 on sale, is hard to beat! NOTE: Other vendors have a more conservative 25 NRR for these type of muffs. That’s still quite good.

9. Amazon — Boosteady Pack of 1000 Patches, $8.99 – $13.99

BOOSTEADY Pack of 1000 Professional Square Gun Cleaning Patches

A clean gun is a happy gun and since patches are the core of any cleaning regimen why not grab some great patches for a great price? Amazon sells 1000-count packs of Boosteady Professional Cleaning Patches starting at just $8.99 for 1″ square patches — a great bargain for 1000. Now you won’t feel so bad running a few extra patches every time you clean just make sure you got the last bit of crud out. Boosteady patches are very highly rated by purchasers and come in 1″ square ($8.99), 2″ square ($11.99), and 2.5″ square ($13.99) sizes, inside a convenient box.

Permalink Bullets, Brass, Ammo, Handguns, Hot Deals, Optics No Comments »
January 20th, 2019

The .20 Practical AR — Wicked Accuracy, Low Recoil

20 Practical AR uppers

The new .224 Valkyrie for AR15-platform rifles has garnered lots of attention lately. That new cartridge has gotten people thinking about the options for an AR shooter beyond the venerable .223 Remington (and 5.56x39mm NATO). While the .224 Valkyrie is good for shooting long heavy bullets (such as Sierra’s new 95gr SMK), there is a simpler, cheaper option for folks who favor “fast and light” — smaller, lower-mass bullets traveling at very high velocities. That option is the 20 Practical, which is simply a .223 Remington necked down to 20 caliber. This little cartridge can launch 40-grainers at over 3900 fps. That’s bookin’. This makes the 20 Practical a great choice for an AR-based varmint rifle.

20 Practical20 Practical Ultimate Varminter
A decade ago, as a “proof-of-concept”, AccurateShooter.com created a 20 Practical AR15 Ultimate Varminter with a custom 20-caliber upper from Robert Whitley of AR-X Enterprises, LLC. That project rifle was ultra-accurate — every 5-shot group out of the gun was less than the size of a dime. That gun was auctioned off, but Robert Whitley continues to produce custom 20 Practical AR15 uppers. (The 20 Practical cartridge is simply the .223 Rem necked down to 20 caliber — you can use standard .223 brass and load with standard.223 Rem dies. Just swap in a smaller expander and use smaller neck bushings.)

Robert reports that the accuracy of the first 20 Practical AR15 was no fluke. After building six (6) more 20 Practical uppers, he tested them for accuracy and they all shot great. These uppers feature DPMS low-pro receivers with side charging handles. They are fitted with PacNor 1:11″ twist, three-groove stainless barrels.

20 Practical AR uppers

Robert reports: “We have been making more 20 Practical AR15 uppers and I have to say I am astounded by the accuracy of these things. For shooting little tiny groups out of an AR15 with bullets going 3500+ fps, it’s hard to beat the 20 Practical. Today I test-fired six more uppers, all with 11-twist barrels. Three of the uppers had 24″ barrels, two had 20″ barrels, and one had an 18″ barrel (we call it ‘Stubby’).

20 Practical Reamer print

In four of these uppers I shot re-sized Winchester brass using 25.3 grains of WC844 powder with Berger 40gr BTHP bullets loaded at 2.225″ OAL (about .015″ off the lands). WC844 is inexpensive military surplus powder that is nearly identical to H335. I tried three different primers and the choice did not seem to matter (CCI BR4, Rem 7 1/2s and Win Small Rifle — the old silver ones). All these four uppers shot great. Here is an animated GIF with targets from uppers #6, 10, and 11. All groups are mag-fed, 5-shot groups shot at 100 yards using a front rest and rear bag.”

Targets Shot with Three Different 20 Practical AR Uppers

20 Practical AR uppers

For more information visit www.6mmAR.com, or contact Robert Whitley via email: rcw3 [at] erols.com.

Permalink Bullets, Brass, Ammo, Gear Review, Gunsmithing No Comments »
January 18th, 2019

.22 LR Ammo Smackdown — 31 Rimfire Ammo Types Tested

Shooting Sports USA .22 LR 22LR Rimfire ammunition test subsonic hi-velocity lead-free hyper velocity suppressor match ammo plinking varmint hunting

Here’s a “must-read” article for .22 LR rimfire shooters. The recently-released October 2018 issue of Shooting Sports USA (SSUSA) includes a great article with data on thirty-one (31) different types of popular .22 LR rimfire ammunition. The line-up includes low-speed, standard, and Hi-Velocity types, plus choices for plinking, varminting, and target applications. Brands tested include: Aguila, American Eagle, CCI, Federal, Fiocchi, Lapua, Remington, and Winchester. The slowest ammo, CCI Quiet-22 Lead RN, clocked 727 FPS. The fastest ammo, CCI Short-Range Green Lead-Free HP, ran 1735 FPS, more than twice as fast as the Quiet-22.

SSUSA .22 LR Rimfire Ammo TEST | SSUSA Oct 2018 Full Issue

For each ammo type, SSUSA lists the bullet weight, velocity (FPS), and average of two, 5-shot groups at fifty yards. The most accurate ammo was Lapua Center-X LRN, with a 0.37″ average 50-yard group size. Second best was Lapua X-ACT LRN at 0.42″. Ammo was tested from a bench with a Cooper Model 57-M rifle fitted with 3-9x33mm Leupold VX-2 scope. The ammo offerings were grouped into three categories: (1) Varmints/Small Game; (2) Target; and (3) Plinking. (See ammo tables below.)

Shooting Sports USA .22 LR 22LR Rimfire ammunition test subsonic hi-velocity lead-free hyper velocity suppressor match ammo plinking varmint hunting
Click for larger page-view.

Different types of .22 LR (Long Rifle) rimfire ammo have different applications. Subsonic ammo, typically, is best for 25m to 50m target work with precision rimfire rigs. Hi-Velocity .22 LR ammo provides a flatter trajectory for longer ranges. SSUSA explains: “The array of .22 LR loads… turns a person’s head every which way. Subsonic target loads are the key to decisive accuracy on targets, while hyper-velocity cartridges provide striking bullet expansion on small varmints. In between, standard and high-velocity .22 LRs are loadrf with a variety of bullet weights and styles for everything from small-game hunting to plinking[.]” READ Full SSUSA .22 LR Rimfire Ammo Story.

Rimfire Ammo Article tip from EdLongrange.
Permalink - Articles, Bullets, Brass, Ammo, Tech Tip 1 Comment »
January 16th, 2019

Save 15% NOW on Reloading Components, Tools, and Gear

Precision Reloading 15% Off sale January 2019 fifteen percent savings

Who doesn’t want to save money? If you can get a significant discount, you should really take advantage of that opportunity. Guys, we’ve been tracking prices on shooting sports products at vendors around the country. Sad to say, we’ve seen price increases across the board in 2019. Reloading components, loading tools, stocks, targets, electronic gadgets — you name it, the price trend is moving upwards. Thankfully our friends at Precision Reloading are holding the line. Even better, Precision Reloading is running a really significant promotion right now.

Take Note! For today and tomorrow, January 16 and January 17, you can get 15% OFF All ORDERS over $100.00. That’s right, save 15% on your purchases at Precision Reloading with Code 15OFF. If you buy a $400.00 item that could save you $60.00. Yes, this applies to pretty much everything in stock at Precision Reloading, including all major brands below (and dozens more including Lapua, Berger, Forster, Hodgdon, Nosler, RCBS, Redding, Sierra etc.).

Precision Reloading 15% Off sale January 2019 fifteen percent savings

If you need bullets, brass, powder, dies, presses, powder dispensers, check out this sale. It’s a very good deal. Use Code 15OFF at check-out to save 15% on your orders over $100.00.

Permalink Bullets, Brass, Ammo, Hot Deals, Reloading No Comments »
January 14th, 2019

Creedmoor Heaven — New Factory Ammo from Berger and Lapua

Berger Bullets Lapua Capstone 6.5 Creedmoor 6mm creedmoor ammo ammunition hunting lead free Naturalis

PRS and NRL shooters, as well as game hunters, now have new ultra-accurate Berger and Lapua factory ammo for the popular 6mm Creedmoor and 6.5 Creedmoor chamberings. For shooters who do not have the time or equipment to hand-load, these new factory ammo options promise outstanding performance. We fully expect that these new offerings from Berger and Lapua will set new standards for accuracy and ballistic uniformity among commercial ammunition for the 6mm Creedmoor and 6.5 Creedmoor. Lapua’s match ammo for the similar 6.5×47 Lapua cartridge has shown outstanding accuracy with ES/SD numbers rivaling high-quality hand-loads. (SEE 6.5x47L Test Results).

New Lapua 6.5 Creedmoor Target and Lead-Free Hunting Ammunition
Lapua has added the popular 6.5 Creedmoor cartridge to its line of Scenar-L Target ammo and its Naturalis Hunting ammunition offerings. The 6.5m Creedmoor 136 grain Scenar-L offers a high ballistic coefficient (BC) for long-range competitive target shooting, yet maintains SAAMI configuration for flawless function through all factory or custom rifle magazines. Lapua ammo will also be loaded with the excellent 123 grain OTM Scenar. One of our favorite bullets, the 123-grainer offers faster velocities (and less recoil) than its bigger brother, and may be the best choice for many PRS stages.

6.5 Creedmoor ammo loaded with the 140 grain Lapua Naturalis provides hunters a lead-free option for hunting in areas that ban lead bullets. Designed and manufactured from pure copper, Naturalis bullets will reliably retain 90-100% of their original weight. Lapua’s Naturalis projectiles produce consistent, controlled expansion at the widest velocity range on the market.

Related Story: Read Lapua 6.5 Creedmoor Brass Test Results »

Berger Bullets Lapua Capstone 6.5 Creedmoor 6mm creedmoor ammo ammunition hunting lead free Naturalis

New Berger 6mm Creedmoor Target and Hunting Ammo
New 6mm Creedmoor Target Ammunition is loaded with Berger 105 grain Hybrid Target bullets, the “go-to” for PRS shooters and long-range accuracy enthusiasts alike. Built using premium-grade Lapua cartridge cases, Berger’s 6mm Creedmoor Target Ammunition provides the discriminating shooter the highest quality components and sub-MOA accuracy “off-the-shelf”, unequaled by the competition.

New Berger 6mm Creedmoor Hunting Ammunition is loaded with 95 grain Hybrid Classic Hunter bullets in premium Lapua brass. These top-flight components deliver lethal precision and sub-MOA accuracy — impressive for hunting ammo. The hybrid ogive design of the Classic Hunter projectile is the same as Berger Hybrid Target bullets, while allowing for SAAMI length configurations for efficiency in the field and reliable functioning through magazines.

Permalink Bullets, Brass, Ammo, New Product, Tactical No Comments »
January 13th, 2019

6.5 Creedmoor Cartridge Reloading INFO — Load Data from Sierra

Sierra Load Data 6.5 Creedmoor

Sierra Bullets has released very complete load data for the popular 6.5 Creedmoor cartridge. This medium-sized cartridge has become one of the most popular chamberings for tactical and PRS shooters. The 6.5 Creedmoor combines excellent accuracy, good mag-feeding, good barrel life, moderate recoil, and reasonable component cost. That’s why this cartridge has caught on quickly.

Sierra Load Data 6.5 CreedmoorDeveloped in 2007 by Dennis DeMille and Dave Emary, the 6.5 Creedmoor is a shortened and improved 30 TC cartridge case that was inspired by the .308 Winchester design. This short action design was created to maximize case capacity and a wide range of loading lengths, while still fitting in standard short action magazines. With the correct twist barrel, the versatile 6.5 Creedmoor can take advantage of the wide range of bullet weights available in 6.5 mm (i.e. .264 caliber). Reloaders should keep in mind that the 6.5 Creedmoor works best with medium to medium-slow powders such as H4350, Varget, Win 760, and RE-17. The light recoil and adaptability of the efficient 6.5 Creedmoor cartridge has already proven itself in high power, precision rifle series and benchrest competitions. Couple that with respectable barrel life and its intrinsic accuracy potential and you have a recipe for success which should insure its legacy for decades to come.

Sierra 6.5 Creedmoor Load Data Manual reloading .264

Here are three tables from the Sierra Bullets Reloading Manual (5th Edition). IMPORTANT — This is just a sample!! Sierra has load data for many other 6.5mm bullet types, including FB, Spitzer, SBT, HPBT, and Tipped MK from 85 grains to 142 grains. To view ALL 6.5 Creedmoor DATA, CLICK HERE.

Sierra Bullets 6.5 Creedmoor Load Data MatchKing Tactical
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

Sierra Bullets 6.5 Creedmoor Load Data MatchKing Tactical
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

Sierra Bullets 6.5 Creedmoor Load Data MatchKing Tactical
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.

Permalink Bullets, Brass, Ammo, Reloading 7 Comments »
January 11th, 2019

New .375 Caliber ELR Solid Projectiles from Berger Bullets

Berger bullets elr solid copper .375 caliber vld bullet new

This is BIG news for the Extreme Long Range (ELR) game. Berger Bullets will offer a line of SOLID bullets in .375 caliber. You read that right — these will be the first-ever large diameter Berger projectiles manufactured from a solid copper alloy. Most conventional bullets feature a jacket over a metal core, typically lead alloy. These new Berger solids are lathe-turned from solid copper alloy — shaped with precision into perfect aerodynamic profiles. The new Berger ELR solids boast a long, VLD shape with ultra-high Ballistic Coefficients. The new .375 caliber Berger ELR solids will be offered in two bullet weights: 379 grains and 407 grains.

The prototype 400gr version of this solid bullet was extensively tested at 2400 yards (above). It remained supersonic at that distance, a remarkable 1.36 miles. Berger will now offer two production versions, 379gr and 407gr, based on this successful prototype, further optimized. Here is Berger’s official release:

Berger Bullets proudly announces the New Extreme Long Range (ELR) Match Solid Projectile line, beginning with .375 caliber 379 grain and 407 grain offerings.

Extreme Long-Range shooting to distances of two miles and beyond has taken the firearms community by storm. With much of its roots developed from elite military sniper and Special Forces rifle training, ELR enthusiasts are utilizing highly innovative rifle and ammunition technology to engage targets at distances previously unheard of. Berger has taken the lead pioneering ELR, similar to how it’s dominated all other long-range rifle disciplines.

Berger Bullets chief ballistician Bryan Litz states: “Our new ELR Solid Match Bullets provide both competition shooters and Mil/LE forces a long-range solid projectile like no other. Its highly-optimized VLD ogive design and lathe-turned solid copper construction provide a ballistic advantage that is unmatched by any conventional-style bullet.”

Berger .375 Caliber Bullet is a Winner
Berger’s .375 caliber solid bullet design has already been proven in competition. At the 2018 World Longest Shot Challenge (WLSC), Team Applied Ballistics used the prototype .375 Cal ELR solid with great results. The new .375 caliber monolithic Berger bullet designed by Bryan Litz was used by the first and second place finishers in the “above .338 caliber” class. The prototype .375 Cal solid performed great, and the ultra-high BC was confirmed. READ WLSC Story HERE.

Advanced Doppler Radar was used to confirm Ballistics Data for the new Berger .375-Caliber Solids:
Berger monolithic solid bullet .375 caliber VLD copper lathe-turned projectile

Permalink Bullets, Brass, Ammo, New Product, News 8 Comments »
January 10th, 2019

Bullet Bell Curve — Sorting by OAL vs. Base-to-Ogive vs. Weight

Bullet, Sort, Jacket, Sierra, USAMU, Sort, Bell Curve, Distribution, OAL

The USAMU has published a “how-to” article about bullet sorting. While many of us may sort bullets by base-to-ogive length (and/or weight), the USAMU story explores the “how and why” of sorting bullets by Overall Length (OAL). Read the article highlights below, and make your own decision as to whether OAL sorting is worth the time and effort. Bryan Litz of Applied Ballistics says that sorting by OAL is not a bad idea, but base-to-ogive bullet sorting probably represents a better investment of your time.

USAMU

Bullet Sorting by Overall Length

We’d like to share a specialized handloading technique which we’ve long found beneficial to our long-range (600 yards and beyond) accuracy. Sorting of bullets for extreme long range (LR) accuracy is not difficult to do, but some background in theory is needed.

Here at USAMU’s Handloading Shop, we only sort individual bullets for the most demanding Long-Range applications and important competitions. Only the most accurate rifles and shooters can fully exploit the benefits of this technique. The basic sorting process involves measuring the Overall Length (OAL) of the bullets, and grouping them in 0.001″ increments. It’s not unusual to find lots of match bullets that vary as much as 0.015″-0.020″ in length throughout the lot, although lots with much less variation are seen as well. Even in bullet lots with 0.015″ OAL variation, the bullet base-to-ogive length will show much less variation. Hence, our basic sort is by bullet OAL. One obvious benefit of sorting is easily seen in the attached photo. The few bullets that are VERY different from the average are culled out, reducing probable fliers.

How does one know what OAL increments to use when sorting? The answer is simple. As each lot of bullets is unique in its OAL distribution, it’s best to sample your bullet lot and see how they are distributed. In the attached photo, you will see a set of loading trays with a strip of masking tape running along the bottom. Each vertical row of holes is numbered in 0.001″ increments corresponding to the bullets’ OAL. A digital caliper makes this task much easier. As each bullet is measured, it is placed in the line of holes for its’ OAL, and gradually, a roughly bell-shaped curve begins to form.

Note that near the center, bullets are much more plentiful than near the edges. At the extreme edges, there are a few that differ markedly from the average, and these make great chronograph or sighting-in fodder. We recommend using a sample of 200 bullets from your lot, and 300 is even better. Some bullet lots are very consistent, with a tall, narrow band of highly-uniform bullets clustered together over just a few thousandths spread. Other lots will show a long, relatively flat curve (less uniform), and you may also see curves with 2 or more “spikes” separated by several 0.001″ OAL increments.

Bryan Litz Applied Ballistics Bullet Sorting AccurateShooter.com

Bullet Sorting (OAL vs. Base-to-Ogive vs. Weight) — Litz Talks

I’m often asked what is a the best measure to sort bullets by, and the answer (to this and many other questions in ballistics) is: it depends.

Choosing to sort by overall length (OAL), base to ogive (BTO), bearing surface, weight, etc. can get overwhelming. Shooters typically look for something they can measure, which shows a variation and sort by that. It’s common for dimensional variations to correlate. For example, bullets which are longer in OAL are typically also shorter in BTO, and have longer noses. All these are symptoms of a bullet that was pushed a little further into the pointing die, or possibly had more than average lube while being swaged. So in essence, if you sort by BTO, you’re measuring one symptom which can indicate a pattern in the bullets shape.

So, the question still stands — what should you measure? You’ll always see more variation in OAL than BTO, so it’s easier to sort by OAL. But sometimes the bullet tips can be jagged and have small burrs which can be misleading. Measuring BTO will result in a lower spread, but is a more direct measure of bullet uniformity.

Then there’s the question of; how much variation is too much, or, how many bins should you sort into? Shooters who see 0.025” variation in BTO may choose to sort into 5 bins of 0.005”. But if you have only 0.005” variation in the box, you’ll still sort into 5 bins of 0.001”. What’s correct? You have to shoot to know. Live fire testing will answer more questions, and answer them more decisively than any amount of discussion on the subject. The test I recommend is to identify bullets on the extreme short end of the spectrum, and some on the extreme long end. Load at least 10 rounds of each, and take turns shooting 5-shot groups with them. If there is a difference, it will be evident. The results of the testing will answer your question of: should I sort based on X, Y, or Z?”

You can read more discussion on this and other similar subjects in the new Ballistics & Bullets board in the Accurateshooter.com forum. Here’s a link to the thread which is discussing bullet sorting: Bullet Sorting Thread

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January 7th, 2019

Bargain Finder 172: AccurateShooter’s Deals of the Week

Accurateshooter Bargain Finder Deals of Week

At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

1. Brownells — Marlin 336Y .30-30 Lever Gun, $389.99 with Code

Lyman C-Frame Ideal compact press cast iron

We think everyone should have a lever gun in their collection, and here’s an exceptional value — Marlin’s model 336Y for just $389.99. The 336Y (for “youth”) has a shorter stock that makes it suitable for younger hunters. The .30-30 Winchester chambering may seem dated, but plenty of bucks have been taken with the venerable .30-30 round. This lever-action rifle features 5-shot tubular magazine, side ejection, and Buckhorn sights. Just 34″ overall, with 16.25″ barrel and weighing only 6 pounds, Marlin’s 336Y can also be a very effective home defense arm. This gun lists for $399.99 with a $10.00 FFL handling fee. Use CODE M8Y to save $20 with FREE shipping, reducing your net cost to $389.99 delivered. NOTE: Brownells has other discount codes: Code LAV ($10 off $100 + free S/H) and Code NCS ($15 off $150 plus free S/H).

2. Al’s — Vortex Razor HD 20-60x85mm Spotting Scope, $809.99

Vortex Razor 20-60x85mm 20x60 Spotter Sale Discount Spotting Scope

AMAZING DEAL — save $390.00! Other vendors sell this very same Razor HD spotter for $1199.
Here’s a great deal on a high-quality spotting scope from a top optics maker. AL’s Sporting Goods has last year’s model Vortex Razor 20-60x85mm spotter for only $899.99, including eyepiece. This impressive HD-glass spotter sells elsewhere for $1200.00. But it gets better — use Code ALS10 for another 10% Off, bringing the final price down to $809.99. This is a very good spotter for the money and as Vortex will tell you, “buy a Razor now and we’ll always replace it with a Razor in the future”.

3. CCI and Federal .22 LR Rimfire Rebate — Save up to 20%

cci federal ammunition ammo .22 lr rimfire rebate

Get Federal Rebate Form HERE | Get CCI Rebate Form HERE

Get paid back when you buy Federal or CCI .22 LR rimfire ammunition. For every 5 boxes of Federal or CCI Rimfire Ammunition you buy, you will receive a rebate of the cost of one (1) box. The rebate amount will equal the purchase price of the LOWEST-cost box of the five. This rebate program is offered for most Federal and CCI .22 LR ammo. The maximum rebate is $200 per household. Print off your redemption form from links below. NOTE: This deal is good through the end of March, 3/31/2019. Purchase qualifying ammo from vendors including Bruno’s, Graf’s, Midsouth, Powder Valley, and Precision Reloading.

4. CDNN — .22 Rimfire Popper Target (Auto-Reset), $19.88

Shooting Mat

Everyone loves reactive targets, and hitting steel is particularly fun with a .22 LR rimfire — you can plink safely at relatively close range. Here is a nicely-designed, self-resetting target at a remarkably low price — just $19.88. Heck you could pay that much for a couple packs of paper targets, and this Range Ready .22 Popper target should last for years (just don’t shoot centerfire ammo at it!). These resetting popper targets are just plain fun to shoot. Plus they are cheap enough that your club could buy a half-dozen or more for use in rimfire tactical matches.

5. CDNN — Kryptek Sound Soldier 27 db NRR EarMuffs, $8.88

ear muff earmuff 27 nrr db kryptek highlander passive deal $8.88
Note: You get one set of muffs (either gray or camo, NOT both) for $8.88 plus S/H.

Good muffs that offer 27 db Noise Reduction and won’t spoil your cheekweld — for under ten bucks? Can’t argue with that. Right now CDNN is offering a killer deal on Kryptek Sound Soldier 27 NRR muffs that sell elsewhere for around $24.00. Get these in either Highlander Camo or Typhon Grey for just $8.88. These passive muffs have low profile shells engineered to stay out of the way when shouldering your weapon. The ergonomic headband keeps the muffs aligned, in their proper position. Purchasers report the soft leatherette ear seals are surprisingly comfortable. These muffs provide a pretty high NRR considering the low profile design. And the price, just $8.88 on sale, is hard to beat! NOTE: Other vendors have a more conservative 25 NRR for these type of muffs. That’s still quite good.

6. Midsouth — Lyman Brass Smith Ideal Press, $69.99

Lyman C-Frame Ideal compact press cast iron

Lyman’s new Ideal compact press works great as a second, lighter-duty press. It also is a good choice for loading at the range. It can easily be mounted to a range bench with C-clamps. With its cast-iron body, this C-Frame press is stronger than other presses in its price class. If you are looking for a secondary press for de-capping, bullet-seating and other tasks not requiring heavy leverage, this is an excellent choice. The Lyman Ideal costs just $69.99 at Midsouth Shooters Supply.

7. Optics Planet — NcStar Vism Shooting Mat, $24.99

Shooting Mat

Still laying on the ground or using your wife’s yoga mat for shooting? For $24.99 now you can grab this NcStar Vism shooting mat and give your knees, belly, and elbows a break from the ground below. It opens wide and even has straps for pre-loading your bipod. This is a quality pad that helps put some space between you and your rocky position. When you’re done simply fold in the edges, roll it up and it takes up the same or less space as a sleeping bag. This is a good product tested and used by our staff.

8. Walmart — 46″ Workbench with LED light, $49.00

46

Are you looking for a solid workstation to reload or gunsmith on? This Walmart 46″ Workbench is solid, easy to assemble, and comes with an LED light, peg hooks, plus drawer liner. That’s a lot of bench for $49.00 especially considering how much you can store under it or in the drawer. The advantage of the LED light is that it won’t affect delicate electronic scales.

9. Amazon — Neiko Digital Calipers, $17.85

Amazon Neiko Digital Caliper

Even if you have a good set of calipers, you may want to get one of these Neiko 01407A Digital Calipers. The #1 best-selling digital caliper on Amazon.com, this Neiko tool features a large LCD Screen and measures up to 6.0 inches. With over 3800 customer reviews, this product has earned an overall rating of 4.4 out of 5 stars. It’s hard to go wrong for $17.85, even if you just use these as a spare set for measuring group sizes and case trim lengths.

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