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28 Sherman magnum build
- Thread starter Lenwood901
- Start date
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Lenwood901
Well-Known Member
9.5 pounds
Lenwood901
Well-Known Member
Lenwood901
Well-Known Member
Used the lab radar today it's running at 2810 fps
Lenwood901
Well-Known Member
DanMac
Member
That's a beautiful build right there!! I'm curious about your load data and V0 results, are those velocities you're recording at 2810fps the result whilst fire forming the cases from 300PRC to 28SM? I'm curious because I jus received my barrel and am about to spin it up in the coming week to try it out myself... Using ADI AR2217 and AR2225 powders.
Lenwood901
Well-Known Member
Yes that was 73g retumbo fire forming the brass I talked to rich and he told me to bump it up too 76 grains and that was shooting at 2942 doing the rest at that charge.
Lenwood901
Well-Known Member
Lapua 300 prc to 28sm You building a 28 am too rite?
nksmfamjp
Well-Known Member
- Joined
- Jan 5, 2004
- Messages
- 3,554
Yes, sent my action off Wednesday to chamber. I have ADG brass. Might neck turn, but I'd rather not.
elkaholic
Well-Known Member
Shouldnt have to
