situation: hoping this isn't a stupid question. maybe just the gas block.
bought a very low round count ar10, decent components, Criterion 16 inch barrel. JP matched high pressure bolt. JP silent capture springs. Rise Armament Trigger, unknown adjustable gas block,
anyway,, when i got it, i put a 338ba suppressor on it that i wasn't using, and used fgmm 6.5 factory 130 berger hybrid OTM ammo. i put 10-15 thru it with a trij mk3 and then got squirreled. it shot great and no probs. 2 years later, circumstances made me want to revisit it, but i put on a ultra 7 .30 cal suppressor. I don't remember dicking around with the gas block last time. anyway,, it seemed like a lot more gas than usual went in my face but i didn't remember exactly from 2 years ago so, i shot again and it didn't cycle right. looking in the mag and found a blown primer. so i think it clogged up the mag. i picked up the 3 cases and sure enough a blown primer, also the primers look a little flat,, and decent marks on head.
i know ar's are pretty hard on cases but having a blown primer seems extreme. my thoughts are maybe the smaller suppressor caused more gas build up,, perhaps i should adjust gas block but it still seems a little weird, it's just factory federal ammo, how hot can it be?
appreciate any thoughts. merry christmas to all!
bought a very low round count ar10, decent components, Criterion 16 inch barrel. JP matched high pressure bolt. JP silent capture springs. Rise Armament Trigger, unknown adjustable gas block,
anyway,, when i got it, i put a 338ba suppressor on it that i wasn't using, and used fgmm 6.5 factory 130 berger hybrid OTM ammo. i put 10-15 thru it with a trij mk3 and then got squirreled. it shot great and no probs. 2 years later, circumstances made me want to revisit it, but i put on a ultra 7 .30 cal suppressor. I don't remember dicking around with the gas block last time. anyway,, it seemed like a lot more gas than usual went in my face but i didn't remember exactly from 2 years ago so, i shot again and it didn't cycle right. looking in the mag and found a blown primer. so i think it clogged up the mag. i picked up the 3 cases and sure enough a blown primer, also the primers look a little flat,, and decent marks on head.
i know ar's are pretty hard on cases but having a blown primer seems extreme. my thoughts are maybe the smaller suppressor caused more gas build up,, perhaps i should adjust gas block but it still seems a little weird, it's just factory federal ammo, how hot can it be?
appreciate any thoughts. merry christmas to all!
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