This is a discussion on Hornady Superformance™ ammo in AR's within the MP Rifles forums, part of the Smith & Wesson MP Forum category; I was just made aware of this, there can be a serious problem using Hornady Superformance™ ammo in AR-15's with carbine or mid length gas ...
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|April 29th, 2012, 01:58 PM||#1|
Join Date: Sep 2006
I was just made aware of this, there can be a serious problem using Hornady Superformance™ ammo in AR-15's with carbine or mid length gas systems. Hornady Superformance™ ammo runs higher than normal pressures and can overload the gas systems in AR's with shorter gas systems, this can result in damaging the gun. The photos show a Bushmaster carbine that KB'd on Hornady Superformance™ 75 gr factory loads.
|March 14th, 2013, 07:19 AM||#2|
Join Date: Apr 2009
Location: Rural NE Iowa
I know this is an old post. Some friends and I are trying to "fine tune" our MSR's. Switching to adjustable gas blocks and "playing" with different buffers. 75 grain is a heavy bullet to be pushing down the barrel,an adjustable gas block "might" have helped prevent this. "We" have found 53-55 grain bullets are the better in the S&W 1in8 5R melonite barrels. One is popping PDogs at 250 yards... "Pushing bigger and harder" doesn't seem to be an answer.
|June 25th, 2013, 01:09 PM||#4|
Join Date: Jan 2013
Is this only an issue with the 75gr? I have 100 rounds of the SuperPerformance 55gr, should I refrain from putting it through my M&P-15?
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