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November 24th, 2018

Out-of-Battery BANG! When Round Fires Before Bolt Fully Closed

out of battery kaboom bohica 50 bmg ar15

As posted in the Calguns.net a few years back, there was a nasty out-of-battery firing incident involving a BOHICA Arms .510 DTC AR15 upper. The cause of the out-of-battery firing is not certain but it appears that the ammo was not sized properly and the firing pin may have been stuck in the extended position. As a result, the round went off before the bolt was closed with the lugs seated. In the process, the bolt handle broke off, as the bolt retracted violently, actually ending up outside the bolt raceway.

out of battery kaboom bohica 50 bmg ar15

The shooter was badly injured, with broken bones and ligament damage to his left hand and tissue damage to his right hand. The shooter was holding the rifle with his left hand near the front of the chamber where a gas vent was located. Gas and shrapnel existed the vent hole causing the severe injuries to the left hand.

From range reports, it appears that the shooter had been struggling to chamber previous rounds, and was having trouble closing the bolt. After talking with one of the rangemasters, a poster on AR15.com reported: “The guy was using new reloads that weren’t exactly fitting well into his chamber. [The shooter] was slamming the bolt handle with his palm trying to get the cases to lock in. The guy was also slamming the bolt forward full force from the rearmost position back and forth trying to ram the cases into chamber in an attempt to squeeze the rounds in so the bolt could close. Finally, on one of the attempts … the possibly stuck firing pin rams into the primer and explodes the round when he slams the bolt forward (zero lug engagement hence the KB) and shooter puts himself into a world of hurt.”

Lessons Learned — Don’t Try to Force Oversize Ammo into a Chamber
By all reports, the shooter’s ammo wasn’t fitting his chamber properly. In an effort to force the ammo into the chamber, he worked the bolt with excessive force. That MAY have caused the firing pin to extend or the hammer to fall without the trigger being pulled. One theory is that the trigger system may have been modified, allowing the hammer to fall from the force of slamming the bolt forward. Others have speculated that the firing pin may have failed to retract because the bolt handle was over-torqued — a safety issue listed in the BOHICA manual.

out of battery kaboom bohica 50 bmg ar15

Whatever caused the out-of-battery firing, it appears that improperly-sized ammo (or a poorly-cut chamber) was the root cause of the problems. If you go to a range and find your bolt does not close easily over the ammo — STOP SHOOTING — don’t try to force the issue. Disaster may result. To paraphrase Johnnie Cochran: “If the ammo doesn’t fit, it’s time to quit”.

Photos by Wildcard, originally posted on Calguns.net.

Permalink Bullets, Brass, Ammo, Shooting Skills, Tech Tip 1 Comment »
November 24th, 2018

Get Rebate Up to $100 on Federal Ammunition

Federal discount black pack Blazer brass American Eagle bulk rifle pistol ammo .22 LR .223 Rem .40 SW 9mm .45 ACP

Looking for bulk ammo for your pistol or rifle? Right now Federal Ammunition is running a “Black Pack” promotion, just in time for the Black Friday/Cyber Monday Weekend. With this deal you get a direct Federal factory rebate up to $100.00 on Federal, Blazer Brass, or American Eagle Black Pack Ammo. The Rebate program is good through December 2, 2018. Combine this Factory Rebate with special Black Friday Weekend pricing from Brownells, and you can get reliable, brand-name USA-made ammo at bargain basement prices.

Here are some Federal Black Pack deals right now at Brownells (partial sample):

Federal discount black pack bulk rifle pistol ammo .22 LR .223 Rem .40 SW 9mm .45 ACP

Federal discount black pack bulk rifle pistol ammo .22 LR .223 Rem .40 SW 9mm .45 ACP

NOTE: These aren’t everything!! There are also Black Pack Rebates for .22 LR, 9mm, .40 SW, 12 gauge shells, and other ammo types. Just look for for Federal, Blazer, and American Eagle with Black Labels!

SPECIAL BONUS SAVINGS at BROWNELLS:

NOTE: If you purchase at least $200 before 11/25/2018 at 11:59 PM, you can get an additional $20 Off your order with Brownell’s Code FN2, or 10% Off your order over $300 with Code FN3! Remember though — this deal ends Sunday 11/25 at midnight!

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How the Federal Black Pack Rebate Works:

Purchase ONE (1) case of Federal, Blazer® Brass or American Eagle® BLACK PACK bulk case or can ammunition and receive $20 back. Limited to FIVE (5) cases/cans or $100 per household. Valid manufacturer product numbers limited to: 5202BF350, 5200BF500, 5220BF350, 5230BF300, AE223BF300, 788BF and BF127 00AC1. Product must be purchased between 11/16/2018 through 12/2/2018. DEADLINE for mail-in or online submission 1/2/2019. See Terms and Conditions.

CLICK HERE to Submit Rebate Redemption Online »

CLICK HERE to Download Mail-in Rebate Form »

Permalink Bullets, Brass, Ammo, Hot Deals, News 20 Comments »