Thread: 30X357 Maximum
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Old 04-17-2018, 04:04 PM
squirrel_slayer squirrel_slayer is offline
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Join Date: Jan 2013
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I have been able to match 30-30 trapper ballistics even with the 300 blackout (much like your 30/357 mag) and that's even within the mag length limitations of the AR. but it took a heavily compressed load of 1680 with mags de-ribbed to allow 2.26" coal. got a 168gr up to 1984 ft/sec avg. did get 1 load to 2011 ft/sec but it was denting the bullets during seating so I went back to the next load down. I had to seat bullets 2/3's the way then touched them to my tumbler while it was running to settle in the powder then seat the rest the way followed by an immediate crimp. lol

I did this for my daughters first deer hunt. didn't find nothing but was still a good time.
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