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December 19th, 2019

How NOT to Ventilate Your Costly Chronograph — Set-UP Tips

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.

If you are using a LabRadar or Magnetospeed, your chrono shouldn’t be in the line of fire, but for those will conventional chronos, here’s some good advice…

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.

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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.

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December 19th, 2019

Get Genuine Military-Issued SIG Sauer M17 Pistols

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Here’s a great opportunity for pistol collectors…

SIG Sauer is offering a limited number of authentic M17 pistols originally issued by the U.S. Army and fielded during the initial domestic and in-theater deployment of the Modular Handgun System. These unique firearms feature the original Coyote controls, the original government-issue markings and serial numbers, along with the U.S. Army specified orange rear and green front Night Sights. As these were fielded by the U.S. Army, their condition will vary, making each one uniquely different, and making this truly an opportunity to own a piece of history. Tom Taylor, SIG Executive VP notes: “These handguns [will be] coveted by both military and firearms collectors alike.”

The M17 Surplus handgun is a 9mm, striker-fired, P320-based handgun platform, featuring a coyote-tan PVD coated stainless steel slide, coyote-tan controls, a coyote-tan medium carry grip module, with the U.S. Government slide markings and serial numbers. The handguns are equipped with SIGLITE sights (orange rear & green front), removable night sight rear plates, and the same optic cut as specified by the MHS contract, ready to fit a SIG Sauer Electro-Optics ROMEO1Pro Optic. The M17 features an ambidextrous manual safety, ships with (1) 17-round and (2) 21-round magazines, includes an official SIG Sauer M17 Certificate of Authenticity, and comes packed just as the handguns are delivered to the U.S. Military. Limited quantities available soon. Call your local dealer for pricing/availability.

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December 19th, 2019

Good Books for Gun Guys — Popular Print Publications

Creedmoor sports gun book title read crossword puzzle
Photo courtesy Nightforce Optics.

In these days of Smart Phones, WiFi-equipped cars, and Alexa digital assistants, conventional books may seem old-fashioned. But for presenting a wide range of information, with charts, tables, photos, and a handy index, there is much to be said for conventional paper publications. These can be used anywhere and anytime, even where there is no cell service. You can annotate the pages with your own comments, and make simple, manual bookmarks for your most-used pages.

Cartridge Comparison Guide Second EditionOne resource we use regularly is the Cartridge Comparison Guide, a remarkably comprehensive 340-page spiral-bound book. Covering over 250 cartridges, the 2nd Edition of the Cartridge Comparison Guide covers most available factory cartridges from .17 caliber all the way up to .50 caliber. This resource also compiles cartridge data from major manufacturers Barnes, Federal, Hornady, Norma, Nosler, Remington, Sierra, Swift, Weatherby, and Winchester. If you shoot factory ammo, you should definitely get the Cartridge Comparison Guide.

Shooters putting together a print-format resource library will have many good choices. Creedmoor Sports has a large library of books in stock, with many currently on sale. On the Creedmoor Sports Book/Video page, you will find dozens of great offerings. You can search by format, author, price, and even shooting discipline. In addition, while you’re visiting Creedmoor Sports, you’ll find many tools and shooting accessories on sale.

Here are six of Creedmoor Sports’ most popular book titles:

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Here’s an interesting book for gun owners. Get away from the TV and test your skills on these gun-centric crossword puzzles. The Shooters Book uses terms and names relating to firearms, their use, and development. At 178 pages, this crossword puzzle/word search book offers something for all firearm enthusiasts. Each crossword puzzle has correlated word searches included to help solve it.

Creedmoor Sports books title sale discount

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