28 Sherman magnum build

Lenwood901

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Joined
Oct 18, 2018
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288
Location
Tucson az
Ag composite alpine hunter
Muller carbon barrel 26 inch
M5 bottom metal
Defiance anti action
Trigger tech trigger
Ti pro 3 muzzle brake
 

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Lenwood901

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Oct 18, 2018
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Tucson az
Started shooting it today and fire forming brass low charge of 73g or retumbo with Berger 195s
 

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DanMac

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Oct 28, 2019
Messages
13
Location
Perth, Australia
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

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Joined
Oct 18, 2018
Messages
288
Location
Tucson az
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.
 

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