Berger has released two important informational updates for its line-up of bullets. First, the Ballistics Coefficients (BCs) have been updated for the vast majority of bullets Berger sells. In addition, G7 model BCs are being provided for most of the bullets. You will want to use the updated BC data, which is based on actual testing of recent production lots of bullets.
Second, Berger is now providing a dual twist-rate recommendation for most bullets. Berger is now lists a “minimum” barrel twist rate as well as an “optimal” twist rate. To get maximum long-range performance from your bullets, use a barrel with the “optimal” rate of twist.
CLICK HERE for the latest Berger Quick Reference Sheets with updated BCs and new Optimal Twist Rates. Eric Stecker, Berger President says: “We have tested every lot of bullets produced in the last several years to bring you these updated numbers for all of our bullets.”
Ballistic Coeffificent (BC) Updates with G7 Data
Berger notes: “We have updated all of our Ballistic Coefficients to be even more accurate.
Prior to 2008, all of Berger Bullets’ BCs were calculated using a computer prediction. Early in 2009, we began measuring BCs with live-fire testing. As a result, Berger’s BCs were updated and G7 BCs were also made available. This represented a dramatic improvement in the accuracy of performance data at that time. Since 2009, the BCs assessed for Berger Bullets have not been updated. As part of our ongoing effort to provide shooters with the best information possible, Berger has been testing every lot of bullets produced for the last several years. The result is updated and highly accurate running averages of BCs for recent production lots.
Here are some of the Updated BC Values for popular Berger Target (Match) Bullets:
G7 Form Factor Addition
Berger also added the G7 form factor to the Ballistics Quick Reference Sheet. The analysis of form factors can be very useful when considering a bullet’s long range performance potential. Going by BC alone can be deceptive since BC includes the weight and caliber of the bullet. Form factor indicates how much drag the bullet has, which is a very important consideration for all bullets of all calibers.
NEW Dual Twist-Rate Recommendations
Recommended twist rates for bullets are commonly listed as a single value, such as 1:12” (one rotation in 12″ of barrel travel). This may be overly simplistic. There is a big gray area of marginal stability in which bullets can fly with good accuracy, but with a reduced (i.e. sub-optimal) Ballistic Coefficient. Recognizing this reality, Berger is now listing two twist rates for each bullet it makes. The first is the minimum twist needed for good accuracy, which Berger has always recommended. The second is the new optimal twist rate, which is the twist that will stabilize the bullet to a level which achieves its full performance (BC) potential. CLICK HERE For more information.
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Redding Reloading is now providing Advanced Handloader’s Data Sheets in printable PDF format. This FREE form allows hand-loaders to document their tool settings, bushing size, powder charge, load specs (COAL etc.), and case prep status. In addition, the form allows you to enter your load testing information, complete with chronograph data, group size, zero range, and wind/temp conditions. With this single, handy form you can document all the vital information for a particular cartridge and load.
We’ve seen various reloading log templates, but this Redding form (shown below) is better than most because it combines both reloading data AND range-test data in one place. You can see all key details of the reloading process (tool settings etc.) plus the end results — how the load actually performed over the chronograph and on paper. This form allows the user to capture a large amount of information for later use, while accurately track load development. Go to Download Page.
FREE Ammunition Box Label Template
Redding Reloading has also developed a printable template for your ammo boxes (see photo at top of article). This lets you put all vital load info on your ammo boxes. There are fields for: Date, Cartridge, Powder, Grains, Bullet, Weight, Primer, Case type. Designed for Avery 5260 (or similar) label sheets, this template allows you to print 30 labels at one time. You can purchase the Avery 5260 peel-off printable label sheets at any office supply store.
The late Bill Myers was recognized as one of greatest rimfire smiths who ever lived. Myers crafted many match-winning, record-setting rimfire benchrest rigs. Here we feature one of Bill’s most interesting creations — a clamping action that allows a rimfire barrel to be indexed (rotated) around the bore axis.
Bill was a creative thinker, and his own exhaustive testing has convinced him that barrel indexing can enhance accuracy in rimfire benchrest guns. Myers did acknowledge that, particularly with a very good barrel, the advantages of indexing may be subtle, and extensive testing may be required. Nonetheless, Myers believed that indexing could improve rimfire accuracy.
Indexing with the Myers’ Clamping Action
To index the barrel, Myers simply loosens the three clamping-bolts and rotates the barrel in the action. Because there is no thread to pull the barrel in or out, the headspace stays the same no matter how much the barrel is rotated. In other words you can rotate the barrel to any position on the clockface and the headspace remains unchanged.
The Challenge of Barrel Indexing
With a conventional barrel installation, employing a shoulder with a threaded tenon, it is difficult to index the barrel. Even with a cone breech (photo right) that eliminates the problem of extractor cuts, you’d have to use shims to alter the barrel index position, or otherwise re-set the shoulder each time you screwed the barrel in further.
Clamping Action Allows Barrel to Be Rotated to Any Position
Bill has come up with a masterful solution to barrel indexing. He designed and built his own prototype custom action that clamps the barrel rather than holding it with threads. The front section of the action is sliced lengthways, and then clamped down with three bolts. A special bushing (the gold-color piece in photos) fits between the barrel and the action. By using bushings of different inside diameters, Bill can fit any barrel up to an inch or so diameter, so long as it has a straight contour at the breech end. To mount the barrel, Bill simply places the fitted bushing over the barrel end-shank, then slips the “sleeved” barrel into the front end of the action. Tighten three bolts, and the barrel is secure.
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If the mainstream media is to be believed, America is experiencing a surge of gun-related violence. Meanwhile sponsors of new restrictions on firearms claim that gun crime is increasing. Due in part to television crime reports, the majority of Americans also believe that firearms-related crimes are on the rise. But is this really the case?
If fact, the crime rate has been dropping steadily for more than 20 years. That has occurred while the number of firearms owned by American has risen significantly So, statistics prove that we really have witnessed “more guns, less crime”. The NSSF video linked above demonstrates this point very effectively.
The numbers don’t lie — over the past 20 years, there has been a major reduction in gun-related crime while gun ownership levels have risen significantly. Moreover, the number of accidental gun fatalities has dropped precipitously, even though Americans own more firearms than ever before.
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At the request of our readers, we have launched a new “Deals of the Week” feature. If this proves popular, we’ll try to run this every Monday. Here are some of the best deals on hardware, reloading components, 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.
Match photo courtesy Varide Cicognati, Sightron dealer in Italy.
No this 10-50X Sightron isn’t as good as a Nightforce 15-55X Competition scope, but it is definitely good enough to win long-range benchrest and F-Class matches and it is nearly $1400 cheaper than the 15-55X Nightforce. It is even $450 cheaper than the old 12-42x56mm NF Benchrest scope. On a value-for-money basis, then, the Sightron 10-50x60mm makes sense for competitor on a budget. The money you save (compared to a 15-55X NF) will pay for a BAT or Kelbly action, with money left over.
2. McMillan Stocks — Rem-inletted Stocks on Sale
McMillan has a wide variety of inletted fiberglass stocks on sale. If you have a Remington or Rem-clone action you’re in luck. McMillan has dozens of Rem-inletted stocks on sale right now, with prices as low as $400. Above is just a small selection of Rem-Inletted Sale Stocks. McMillan also has bargain-priced stocks for many other kinds of actions.
3. Midsouth Shooter’s Supply — RCBS Rock Chucker Press
This week you can get an RCBS Rock Chucker Supreme Press for just $149.99 at Midsouth Shooters Supply. The Rock Chucker Press is strong and versatile, a design that has stood the test of time. I’ve got a Rock Chucker on my reloading bench that was made in the 1970s and passed down from my brother. It’s still capable of loading 1/4-MOA ammo.
4. Weatherby — Vanguard S2 Typhoon .243 Win
A Weatherby for under $450.00? That’s right. Currently, Grabagun.com offers the Weatherby S2 Typhoon, chambered in .243 Winchester for just $448.22. This rifle features a 24″ barrel, 2-stage trigger (that adjusts down to 2.5 lbs), and a composite Monte Carlo-type stock in Kryptek camo pattern. Weight without optics is 7.25 pounds. NOTE: Limited inventory — check Slickguns.com for other vendors.
5. MidwayUSA — Deluxe Competition Shooting Mat $59.99
We have used MidwayUSA shooting mats, as have many Forum members. This Competition Mat is a good product. The 400 denier, PVC-coated material is durable, the overall size is good, and we like the front flap that can be staked down. MidwayUSA normally sells this mat for about $85.00. Currently, it is on sale for $59.99. It’s hard to find a better padded mat for anywhere near that price.
Unrolled Dimensions: 73-½” Long x 35-½” Wide (Does not include the front flap).
Rolled Dimensions: 8-½” Diameter x 35-½” Wide | Weight: 6.5 lbs.
6. CDNN — Walther PPX M1 9mm for $279.88
It may be ugly, but this Walther PPX M1 is a very good 9mm pistol. This Editor has shot the PPX and, IMHO, it has a better trigger than the Glock, better ergonomics, and better accuracy. Right now you can get this German-made Walther 9mm pistol for under $280.00 — less than half the price of a new Glock. Interested? Then read this Walther PPX Review. It confirms what we’ve said — this is a good pistol.
7. Wideners.com — IMI 9mm Luger, 1000 Rounds for $209.00
This is good ammo, though pretty “hot” (it runs 1102 fps from a 4″ barrel). This Editor has shot a lot of IMI 9x19mm ammunition through Glocks, HKs and Sigs. This ammo is very reliable and reasonably accurate. NOTE: This ammo features lead-core bullets, which may not be allowed in some indoor ranges. This ammo is Boxer-primed and the primer pockets are NOT crimped so you can reload the IMI 9mm brass with no problems. $209.00 for 1000 rounds is a pretty good deal these days.
This is a pretty darn good folding knife, and a killer deal at $15.60 from Amazon.com. Yes your Editor bought one. The semi-serrated stainless steel blade is sharp and holds its edge surprisingly well. The knife comes with a nylon sheath and a Bear Grylls survival guide. Despite its low cost, Gerber offers a lifetime warranty on this knife.
Here is a verified owner’s review: “Most retailers sell it for 30 bucks. This knife is…very sturdy with no blade play and has a good solid feel. The handle is very grippy… [and] fits VERY nicely in the hand. Love Gerber’s serrations… great for cutting rope, cordage and strapping.”
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Applied Ballistics LLC will release updated editions of two popular resource books: Applied Ballistics for Long-Range Shooting (3rd Edition) and Ballistic Performance of Rifle Bullets (2nd Edition). Retail price is $54.95 for each title, or $94.95 if purchased together. Pre-orders are now being accepted with a $5 discount per book. You can pre-order the new editions through the Applied Ballistics store. The new editions are expected to ship by the second week of December.
Applied Ballistics for Long Range Shooting (ABLRS), Bryan Litz’s “Magnum Opus”, will have significant enhancements. New for the Third Edition is content on Weapon Employment Zone (WEZ) analysis. WEZ analysis is the study of hit percentage, and how that will be affected by the uncertainties in your environment. Existing academic material is augmented with modern experimental findings. The Third Edition also includes a CD-ROM disc with Applied Ballistics’ latest version of its ballistic software. NOTE: The third edition of ABLRS does NOT include the library of bullet data. That bullet library now exists as a separate reference book: Ballistic Performance of Rifle Bullets.
Ballistic Performance of Rifle Bullets — Data for 533 Bullets AND Rimfire Ammo
The updated, Second Edition of Ballistic Performance of Rifle Bullets contains the current library of all modern bullets tested by the Applied Ballistics Laboratory. Expanding on the First Edition, which had data on 400 bullets from .22 to .408 caliber, this Second Edition contains data on 533 bullets from .22 through .50 caliber. In addition to the centerfire bullet data, the Second Edition contains live fire data on 90 types of rimfire ammo which were all tested for muzzle velocity and BC through five different barrels of various twist/length configurations. This library of experimental test data is the most extensive and accurate resource ever assembled for small arms bullets. Numerous modern ballistics programs draw from the library of tested BCs that are published in this book.
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Here’s something you’ve probably never seen before — a liquid-cooled benchrest rifle. No, this is not just a crazy experiment. This gun, built by Joel Pendergraft, produced a 10-shot, 3.044″ group that is still listed as the International Benchrest Shooters (IBS) 1000-Yard Heavy Gun record. Using this water-cooled 300 Ackley Improved, Joel shot the record group in April 2009 at Hawks Ridge, NC. This monster features a 12-twist, 4-groove Krieger barrel. Joel shot BIB 187gr flat-based bullets in Norma brass, pushed by a “generous amount” of Alliant Reloder 25 and Federal 210M primers.
This 3.044″ 10-shot group was a remarkable accomplishment, breaking one of the longest-standing, 1000-yard World Records.
Pendergraft was modest after his notable achievement: “What makes this so very special is to be able to celebrate the accomplishment with all of my shooting friends[.] A good friend once said that records are shot when preparation and opportunity meet. I feel blessed to have personally had the opportunity. The preparation we can individually work on and achieve but the opportunity only comes to a few. Those of you that compete in long range competition will know what I mean.”
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FBI Photo shows a Glock Model 22, .40 S&W caliber. This will be replaced by new, striker-fired 9mm Luger pistols in both compact and full-size formats.
The Federal Government loves to spend your tax dollars, and the FBI wants its share of the action. The Federal Bureau of Investigation recently issued a Request for Proposal (RFP) for the next generation of 9mm FBI pistols. At stake is $85,000,000 in Federal dollars for handguns, parts, and accessories. CLICK HERE to Download FBI RFP.
The FBI is actually seeking two 9x19mm pistols, one “Compact” and the other “Full-Size”. The pistols must be striker-fired, and capable of a “20,000 round endurance firing cycle”. Trigger pull weight shall be “no less than 4.5 pounds nor exceed 6 pounds”, with NO mag disconnect/safety. There will also be no manual external safety, no grip safety, and no de-cocking lever. Here are the RFP basic descriptions of the pistols:
Class I Compact Pistol: One (1) Class I Pistol with a barrel length of no less than 3.75” and no greater than 4.25”, minimum magazine capacity of 14 rounds, night sights, six (6) magazines, FBI approved gun lock. Firing pin/Striker fired only.
Class II Full Size Pistol: One (1) Class II Pistol with a barrel length of no less than 4.26” and no greater than 5.20”, minimum magazine capacity of 16 rounds, night sights, six (6) magazines, FBI approved gun lock. Firing pin/Striker fired only.
Why Change from .40 SW back to 9x19mm?
Last time we checked the FBI had more than enough firepower. The FBI’s stated need for $85 million dollars worth of 9mm pistols* certainly raises questions, while re-igniting the “great caliber debate”. In May 1997, the FBI officially adopted the Glock .40 S&W pistol for general agent use. Now it is going back to the 9mm Luger (aka 9x19mm), which it had used in Sig P226/228 pistols from 1988 to 1997.
Why make the change? Some people think advancements in propellants and 9mm bullets allow the smaller cartridge to rival the .40 SW for penetration and stopping power. Possibly the FBI learned that many of its agents couldn’t shoot the snappy, harder-recoiling .40 SW very well. So this change to a more user-friendly round may be all about compensating for lawmen who can’t shoot straight.
A report originating at the FBI Training Academy in Quantico, VA may explain why the FBI wants to dump the .40 SW in favor of the 9mm. Here are highlights from the Report’s Executive Summary:
LEOs miss between 70 – 80 percent of the shots fired during a shooting incident.
9mm Luger now offers select projectiles which are, under identical testing conditions, outperforming most of the premium line .40 S&W and .45 Auto projectiles tested by the FBI.
9mm Luger offers higher magazine capacities, less recoil, lower cost (both in ammunition and wear on the weapons) and higher functional reliability rates (in FBI weapons).
The majority of FBI shooters are both FASTER in shot strings fired and more ACCURATE with shooting a 9mm Luger vs shooting a .40 S&W (in similar sized weapons).
There is little to no noticeable difference in the wound tracks between premium line law Auto enforcement projectiles from 9mm Luger through the .45 Auto.
Source: FBI Training Division, FBI Academy (Quantico, VA) Report quoted in LooseRounds.com.
* In addition to the Compact and Full-Size duty pistols, the FBI plans to acquire training pistols and spare parts: “Class I Inert Training Pistol (a.k.a. Red Handle); Class I Man Marker Training Pistol (a.k.a. SIMUNITION); Class I & Class II Pistol Replacement Parts”. The $85,000,000 contract price would include these additional items.
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Can you guess what your next barrel will weigh? In many competition disciplines, “making weight” is a serious concern when putting together a new match rifle. A Light Varmint short-range Benchrest rifle cannot exceed 10.5 pounds including scope. An F-TR rifle is limited to 18 pounds, 2 oz. (8.25 kg) with bipod.
One of the heaviest items on most rifles is the barrel. If your barrel comes in much heavier than expected, it can boost the overall weight of the gun significantly. Then you may have to resort to cutting the barrel, or worse yet, re-barreling, to make weight for your class. In some cases, you can remove material from the stock to save weight, but if that’s not practical, the barrel will need to go on a diet. (As a last resort, you can try fitting a lighter scope.)
Is there a reliable way to predict, in advance, how much a finished barrel will weigh? The answer is “yes”. PAC-NOR Barreling of Brookings, Oregon has created a handy, web-based Barrel Weight Calculator. Just log on to Pac-Nor’s website and the calculator is free to use. Pac-Nor’s Barrel Weight Calculator is pretty sophisticated, with separate data fields for Shank Diameter, Barrel Length, Bore Diameter — even length and number of flutes. Punch in your numbers, and the Barrel Weight Calculator then automatically generates the weight for 16 different “standard” contours.
Calculator Handles Custom Contours
What about custom contours? Well the Pac-Nor Barrel Weight Calculator can handle those as well. The program allows input of eight different dimensional measurements taken along the barrel’s finished length, from breech to muzzle. You can use this “custom contour” feature when calculating the weight of another manufacturer’s barrel that doesn’t match any of Pac-Nor’s “standard” contours.
The prestigious GAP Grind tactical match runs this weekend, 16-18 October, at the K&M Shooting Complex in Finger, Tennessee. The 2014 GAP Grind drew a huge turn-out, and this year’s Grind promises to top that — with more competitors and even tougher challenges. Held in association with the Precision Rifle Series (PRS), this year’s Grind features a Pro/Am format with professional and amateur competitors aiming for individual and team honors.
Lots of Action, with 20+ Stages
The GAP Grind is a notoriously challenging, “high tempo” match with minimal down time between stages. Over the course of 20+ stages, competitors will fire 200+ shots at a variety of steel, paper, moving, and reactive targets out to 1,200 yards. Target vary in size/difficulty based on the shooter’s position, distance, and time allotted. Most stages include “stressors” — i.e. time limits or required movement(s).
2014 GAP Grind Highlights Video:
Want to see what a “GAP Grind Experience” is all about? Then watch this video from the 2014 Grind. You’ll see a lot of movement through a wide variety of shooting positions. This ain’t no benchrest match, that’s for sure…
GAP Grind Guns by Giddings
Shelley Giddings, a skilled shooter of both firearms and cameras, attended the 2014 GAP Grind last week. While there, Shelley snapped some cool images of state-of-the-art tactical rifles. Here is a Giddings Gallery of Grind Guns. You can find more GAP Grind pix on Shelly’s Facebook Page.
Click any photo below to see a full-screen version.
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Nightforce Optics has just launched a new monthly newsletter. This free, subscription-based digital publication will offer information on optics, target shooting, hunting, and other topics of interest. The debut October issue, released this week, features match reports, tactical shooting hold-over advice, plus a TECH TIP explaining Parallax.
PARALLAX – What is it and Why is it important?
What is Parallax?
Parallax is the apparent movement of the scope’s reticle (cross-hairs) in relation to the target as the shooter moves his eye across the exit pupil of the riflescope. This is caused by the target and the reticle being located in different focal planes.
Why is it Important?
The greater the distance to the target and magnification of the optic, the greater the parallax error becomes. Especially at longer distances, significant sighting error can result if parallax is not removed.
How to Remove Parallax
This Nightforce Tech Tip video quickly shows how to remove parallax on your riflescope.
While keeping the rifle still and looking through the riflescope, a slight nod of the head up and down will quickly determine if parallax is present. To remove parallax, start with the adjustment mechanism on infinity and rotate until the reticle remains stationary in relation to the target regardless of head movement. If parallax has been eliminated, the reticle will remain stationary in relation to the target regardless of eye placement behind the optic.
If you want to subscribe to the Nightforce Newsletter, CLICK HERE to open the Newsletter then click the green “Join Email List” button at the top of the page.
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Gun guys are always shipping stuff around the country — whether it’s a barrel to be chambered, or a scope that needs to go back for warranty repair. Or maybe you’ve sold some bullets or reloading dies you no longer need. To ensure your precious packages get to their destination in one piece, it’s important to take precautions when boxing up your items. And by all means insure packages for full value — even if your packaging is perfect, there is always the possibility that your shipment might be lost altogether. Sadly, that can happen, no matter which carrier you choose: Fedex, UPS, or the U.S. Postal Service (USPS). Here are some tips for shipping gun stuff — we explain how to pack items properly and how to minimize the risk of loss.
Tips for Shippers
Dennis Haffner from McGowen Precision Barrels offers some advice on how to avoid damage when shipping gun parts or other valuable or heavy items. Dennis explains:
“First, I started double-packing the contents and in many cases double-boxing. I spend a fortune on heavy-reinforced shipping tape. If the contents are loosely packed, the package is going to get crushed. On real important items or delicate items, wrap the content in plastic and spray the inside void areas with non-expanding foam. They make shipping foam just for this. This method really works. Since I started paying more attention to packaging, I have just about wiped out my issues with all three companies (Fedex, UPS, USPS). Yes, I hate doing it, but in the long run for us, it’s cheaper.
Bullet shipments are the worst — a shipment of 500+ bullets can destroy a cardboard box. I have ordered bullets from individuals who put them in baggies and filled the remainder of the box with foam peanuts. That is not going to work. Any piece of metal, including a die, will puncture a cardboard box, or destroy a padded envelope. Just look at the tracking information and imagine your package bouncing around in the back of the shipping truck, probably under many other packages. My advice is to NEVER use padded envelopes. Barrel nuts or recoil lugs will most likely never make it.
ORM-D items are required to be shipped in heavily-reinforced, double-walled containers. The packages still get a little damage, but the contents usually survive.
How do shipments get damaged? Consider this — one of the shipping companies this year flipped (overturned) one of our new CNC machines (which rendered it useless). Maybe your small packages were in the same delivery truck as my CNC machine. I wonder how many little boxes were crushed underneath it.
As for USPS flat rate boxes — you would not believe what people try to stuff in these boxes. USPS finally put a weight limit on the boxes — they had to. I sometimes take my delicate items packed in an envelope or small box. I spray foam in a larger flat rate box and insert the smaller package, then fill the remainder of the void with foam. It works, and part usually arrives undamaged.”
Shipping Rifle Barrels (PVC Tube and Tennis Ball Method)
A new match-grade barrel can cost $350 or more, and it might take six months (or more) to replace it, given the current wait time with top barrel-makers. So, you don’t want your nice new tube to get damaged in transit. Forum Member Chuck L. (aka “M-61″) offers these tips for shipping rifle barrels:
“Packing a barrel can be a problem. Here’s a shipping method that won’t stop lost shipments but so far has stopped damage. Get a PVC pipe (of size appropriate to your barrel) with fitted caps for each end. Attach a cap to one end. Tape the barrel threads and tape over the muzzle. Then drop one standard tennis ball into the pipe. Place barrel in pipe. Next add whatever peanuts or foam you can jam in to support the barrel on the sides. Then place a second tennis ball into the opposite end of the PVC pipe. (So now you have a tennis ball on either end of your barrel.) With everything secure inside, attach the upper cap and tape it down securely. With this packing procedure, when the carrier launches the pipe like a javelin, at least the barrel will not come through like a spear and be gone. Label the pipe with very large address labels so no one suspects it’s just garbage laying around. This procedure may seem ridiculous but it has worked for me. Oh and definitely get insurance. If your item is insured, the shippers will look harder to find it.”
Editor’s Note: Fedex also makes a triangular-profile cardboard shipping box. This 38″ x 6″ x 6″ x 6″ Fedex Tube (designed for blueprints and posters) is free for the asking. For most barrels, there should be enough clearance to hold your PVC tube (with barrel packed inside tube). However, don’t ship the barrel inside the cardboard box by itself. Cap and pad the ends and bubble wrap it heavily, or better yet, use the PVC tube method described above, with the PVC tube inside the box.