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This is mostly a copy/paste of a post I just made on the CZ forums.
My SBR AMMO (IMR 4198) runs approximately 350fps slower out of an 11" Bren 2Ms than it does out of a 12.5" AR15.
How can the difference be so great? Am I wrong to be surprised by this much of a difference?
I expected MAYBE 100fps different.
Hesitant to make a post about this, but I couldn't readily find anything online specific to my question.
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My SBR AMMO (IMR 4198) runs approximately 350fps slower out of an 11" Bren 2Ms than it does out of a 12.5" AR15.
How can the difference be so great? Am I wrong to be surprised by this much of a difference?
I expected MAYBE 100fps different.
Hesitant to make a post about this, but I couldn't readily find anything online specific to my question.
Sent from my SM-G986U using Tapatalk