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December 9th, 2021

Chrono No-Nos: Remember this Device is a Tool, Not a Target

accurateshooter.com target chrony shoot chronograph damage chrono

“Shooting Chrony” is a product name. “Shooting Chrony” should not describe (post-mortem) what you have been doing to your chronograph. Sooner or later all of us may make a mistake, and ventilate our chronograph. With luck, the bullet just “wings” your chronograph, and the damage is minor. But if you hit the unit smack dab in the middle, you may have to retire your chrono for good.

A while back, Forum member Jeff M. (aka “JRM850″) experienced a “low blow” that put his Shooting Chrony out of commission. With tongue firmly in cheek, Jeff started a Forum thread entitled Chronograph Not Picking Up Shots in Bright Sunlight Anymore. Looking at the photo at top, the problem is obvious — he ventilated his Chrono.

This was Jeff’s first chrono kill in 23 years of use, so we shouldn’t be too critical. Jeff explained: “I didn’t realize a friend was shifting from a 300-yard target to 100 yards.” The agent of destruction was a low-traveling 58gr V-Max running at 3415 fps. What happened? Well, when one is shooting at 300 yards, the trajectory will be higher than at 100 yards. We should say, however, that this may have been a low shot, or the 100-yard aiming point may have been placed lower to the ground (closer to the bottom of the target frame), as compared to the 300-yard aiming point.

Other Forum members offered some sarcastic responses:

Try it on an overcast day – it might work again.

It looks like the V-Max performed just about as advertised.

Aww…a little duct tape and some Super Glue and you’re good to go.

Double Check Your Aim Point and Trajectory BEFORE You Shoot
The lesson learned here is that you should never change targets (or aim points) without checking your bullet’s flight over the chronograph. We like to align the barrel so the bullet exits a good 6-8 inches above the electronics (check your manual for recommended shot height). In addition, we always boresight the barrel so we can see the actual target through the bore. Then, with gun UNLOADED, bolt removed and action clear, we look back down the barrel so we can see daylight through the bore, with the gun set on solid rests. If you look through the middle of the “V” formed by the sky screen supports and you can’t see light shining through the barrel’s bore, you probably have a set-up problem and you should re-align the rifle.

accurateshooter.com target chrony shoot chronograph damage chrono

Use a Test Backer to Confirm Your Bullet Trajectory
You can put tape on the support rods about 6″ up from the unit. This helps you judge the correct vertical height when setting up your rifle on the bags. Another trick is to hang a sheet of paper from the rear skyscreen and then use a laser boresighter to shine a dot on the paper (with the gun planted steady front and rear). This should give you a good idea (within an inch or so) of the bullet’s actual flight path through the “V” over the light sensors. Of course, when using a laser, never look directly at the laser! Instead shine the laser away from you and see where it appears on the paper.

After you have used the laser boresighter to get the rifle centered up in the chrono’s “sweet spot”, confirm with a test shot or two (see photo). Even when using an in-chamber laser boresighter, it is not uncommon for the bullet’s actual point of impact to be different than the laser’s dot location.

Permalink Shooting Skills, Tech Tip 9 Comments »
August 13th, 2020

Bargain Boresighters — Laser Boresight Systems $15.99

Sportsman's Guide laser boresighter bore sight chamber lazer
With good factory rifle ammo costing $1.00 per round — a Laser BoreSighter could pay for itself in just a couple range sessions.

Laser BoreSighters — fitted to your chamber — help you get on target more quickly, particularly with factory firearms. Just activate the unit, slip it into the chamber and look for the red dot on the target. The laser dot is about 2″ in diameter at 100 yards, and is visible even in full sunlight. Right now you can get HQ Issue BoreSighters starting at $15.99 at Sportsman’s Guide (member price is $14.39). These units have a durable brass metal body and the battery will run an hour.

Boresighters are offered for many popular rifle cartridge types including: .223 Rem, .22-250, 6.5 Creedmoor, .308 Win family, and .30-06 (full list below). Sportsman’s Guide also offers Pistol Laser BoreSighters for $17.99 (member price): .38 SPL/.357 Mag, .40 SW, .44 Magnum, .45 ACP.

Sportsman's Guide laser boresighter bore sight chamber lazer

In-chamber BoreSighters are much safer than the kind that you insert in the end of the barrel (or attach to muzzle). If you forget your laser bore-sight placed in the end of the barrel, and then fire a round, you can blow up your barrel and/or suffer serious injury — it HAS happened.

This video shows how to use in-chamber Sightmark laser boresighters. The HQ Issue boresighters work the same way:

Rifle and Shotgun Cartridge Types:
.223 Rem
.22-250
6.5 Creedmoor
7mm Mag (also .264 Mag, .338 Mag)
7.62×54
.30-30
.303 British
.308 Win (also .243, .260, 7mm-08)
.30-06 (also .25-06, .270 Win, .338-06)
.300 Win Mag
20 Gauge Shotgun
12 Gauge Shotgun
Permalink Gear Review, Handguns, Hot Deals, News No Comments »
March 11th, 2019

Bargain Finder 181: 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. Palmetto State Armory — PSA 20″ 6.5 Grendel Upper, plus stock, grip, 2-stage trigger, and parts kit: $399.99

PSA Grendel Upper

The AR is a versatile platform. You can shoot multiple calibers with one lower, and a set of uppers — which can be swapped in seconds. Now you can add a versatile 6.5 Grendel upper for a killer price. We found this PSA 20″ rail-top upper in 6.5 Grendel complete with 20″ stainless 1:8″-twist barrel, 15″ M-Lok handguard, 9310 steel bolt, complete bolt carrier, and adjustable gas block. This kit also includes a stock, plus most of the parts needed to complete your lower (lower receiver NOT included). For $399.99 this is a heck of a deal. Take note — the 6.5 Grendel is a great little cartridge. It mag-feeds fine and you can get superb Lapua brass. The 6.5 Grendel is accurate, efficient, and excellent for BOTH precision target work AND deer hunting. For this price, with a modern 6.5 caliber cartridge, this is a great deal, and could be a significant upgrade for your AR15-platform rig.

2. Amazon — Universal Cleaning Mat, $19.99

Universal Cleaning Mat

If you’re like most people you spread out a towel before tearing your gun apart. This often leads to missing parts, a messy work area and when you spill anything it just soaks into your pad. Now you can pick up this universal cleaning mat that also includes a MAGNETIC parts keeper on the side. It’s nearly 4 feet long and is made of a oil and solvent resistant material for easy cleanup.

3. EuroOptic — Vortex Viper PST 5-25x50mm, $899.99
PLUS use CODE PST50 to get $100 Gift Card

Vortex Viper PST 5-25x50mm

Scopes in the 5-25X range are popular for a variety of shooting disciplines and calibers from 6mm to .50 cal for good reason. They offer wide field of view (at 5X) plus high magnification on the top end. Plus the latest models deliver plenty of elevation in a compact package. Now you can grab the very popular Vortex Viper PST 5-25x50mm in either 1/4 MOA or 0.1 MilRad click versions for a low $899.99. What’s more, use Code PST50 on check-out to receive a bonus $100 gift card from EuroOptic. That’s nearly $200 cheaper than other optics vendors right now.

4. Amazon — Carbon Fiber Bipod and Pic Rail Adapter, $25.99

Carbon Fiber Bipod

Carbon Fiber BipodLooking for a new bipod that can work with a Picatinny rail? You’re in luck because we just found this 6″ – 9″ adjustable Carbon Fiber Bipod and M-Lok adapter combo for the amazingly low price of $25.99 including a handy adapter allowing you to securely attach the bipod to a standard Picatinny Rail. There are also versions with KeyMod or M-Lok Adapters for $27.99. Purchasers have given this unit high praise, with a 4.5-star rating. Here is an actual buyer review:

“Excellent bipod at an excellent price. It seems well-built and is far more rigid and sturdy than others like it. The bipod came with a Picatinny adapter [M-Lok or KeyMod optional]. Mounting was quick and easy. Overall I think this is by far the best bang-for-your-buck bipod.”

5. Amazon — Laser Boresighting Tools, $5.49 – $10.99

Laser Boresighter

Do you have a new rifle or new scope that needs to be mounted? To speed up the process of sighting-in your rifle, a laser boresighter is a very handy tool. Grab laser boresight tools in the cartridge/caliber of your choice. If you get the no-neck, shoulder-only .308 Win version ($5.49 on Amazon) it should work with the entire .308 Win family, plus the 6mmBR and 6.5 Creedmoor families. For a few dollars more, there are cartridge-specific units for .223 Rem family, 7.62x39mm, .270/.30-06 and other types. These laser boresighters are cheap, easy to use, and effective. They’ll get you on paper quickly.

6. Midsouth — Hornady LNL Auto Charge Dispenser, $168.99

Hornady Powder Dispenser

Looking for a good electronic scale/powder dispenser for under $200.00? The Hornady LNL Auto Charge is one of the best bargain scale/dispensers. Enter your charge weight and watch it accurately dispense your load accurate to the tenth of a grain. For those of you who load multiple calibers and charges it can be programmed for easy use. Other competing electronic powder dispensers can cost $250 – $350, so the AutoCharge is a great value.

7. Creedmoor Sports — Made to Order Shooting Mat, $70.00

Field Shooting Mat

Tired of showing up to a match and finding your shooting mat is getting lost in the sea of other green or tan mats? Now you can get a made-to-order field shooting mats in one of 20 distinctive colors. Each one is MADE TO ORDER and very well-built for years of use. Getting your own distinctive mat ensures you can quickly find your place on the firing line. We also like the generous padding on this mat.

8. Amazon — MTM AC4C Ammo Crate with 4 Ammo Boxes, $22.99

MTM Ammo Carrier Crate Box

Here’s a very cool product from MTM at a great price. The versatile MTM AC4C Ammo Carrier features four, lockable polymer ammo cans in a fitted, four-slot 23.5″ x 11.3″ x 7.5″ carry crate. This makes it easy to haul four full ammo cans. Actual purchasers have raved: “Moments after I received this storage box set I ordered another. Very well built and great design. Awesome and a steal at the price.” Right now this is on sale at Amazon for just $22.99 with free shipping on orders over $25. The system includes four lockable, O-Ring 11.3″ x 7.2″ x 5″ ammo cans (AC30T) for multi-caliber ammo storage. The crate even includes tie-down points for transport in a cart or ATV. NOTE: Last year this MTM AC4C system sold for $39.99. The current $22.99 price represents a 43% savings!

9. RCBS 2019 REBATE Program — Get Up to $100 Back

RCBS 2019 Rebate press chargemaster case prep discount rebate sale

NOTE: Deadline for Purchase is March 17, 2019 — Next Sunday
RCBS just announced its first Rebate Program for 2019. Get up to $100 back on select RCBS® products. If you need an electronic Scale/Dispenser, Progressive Press, a Case Prep Center, Ultrasonic Machine, or Power Case trimmer you’re in luck. Here are the Rebates available for purchases made between 2/1/2019 and 3/17/2019. NOTE: The DEADLINE for mail-in or online submissions is 4/16/2019.

Permalink Bullets, Brass, Ammo, Gear Review, Hot Deals, Reloading No Comments »