  | Help, confused IMR 4350 & 300 win mag |
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08-30-2012, 10:40 PM
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Silver Member
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Join Date: Dec 2009
Location: East Tennessee
Posts: 175
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Re: Help, confused IMR 4350 & 300 win mag
Sorry, typing error. Supposed to be 0.43 inches.
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08-30-2012, 10:45 PM
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Silver Member
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Join Date: Dec 2009
Location: East Tennessee
Posts: 175
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Re: Help, confused IMR 4350 & 300 win mag
Mikecr, this was all new to me stuff, first trip to the range. Still not sure other than the manual was just printed wrong for that powder. Got some more loaded but haven't had time for a range trip yet.
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09-01-2012, 07:18 AM
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Platinum Member
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Join Date: Jan 2011
Posts: 1,797
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Re: Help, confused IMR 4350 & 300 win mag
I'm not telling you to do anything stupid, but max charge is obviously different for every rifle, seating depth, primer type, brass make, bullet etc... I have used 76.5grns of Imr4350 under a 178 hornady bthp touching the lands using winchester brass, CCI BR2s and a OAL of 3.531", I didn't go into an over pressure issue. Get data from 2 or 3 manuals to get a starting point, work up slowly, and find the max for "your" combo, not the books max. Be safe.
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09-01-2012, 07:23 AM
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Silver Member
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Join Date: Dec 2009
Location: East Tennessee
Posts: 175
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Re: Help, confused IMR 4350 & 300 win mag
Thanks for the replies. I'll keep working on it, now if i can just get some range time.
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09-01-2012, 07:33 AM
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Platinum Member
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Join Date: Dec 2005
Posts: 1,958
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Re: Help, confused IMR 4350 & 300 win mag
Quote:
Originally Posted by backwoods83
Get data from 2 or 3 manuals to get a starting point, work up slowly, and find the max for "your" combo, not the books max. Be safe.
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If the max charge is supposed to be at SAAMI max average specs of 52,000 CUP, how does one measure their charge's pressure without a pressure measuring system to find out what their load produces in their barrel?
I don't know of any visible inspection or physical measurement methods of fired cases is a way of assesing max pressure that's accurate.
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09-01-2012, 07:42 AM
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Platinum Member
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Join Date: Jan 2011
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Re: Help, confused IMR 4350 & 300 win mag
No Bart there is not an exact method without a pressure barrel, however there must be some logic behind your smartass replys to everyone. I don't care who says what to me so, that said you're a ass, and no one is as wise as you. Since you're so damn good maybe you should check into working for Hodgdons, Sierra, Berger, etc... they need someone of your genius.
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09-01-2012, 07:58 AM
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Platinum Member
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Join Date: Dec 2005
Posts: 1,958
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Re: Help, confused IMR 4350 & 300 win mag
Quote:
Originally Posted by backwoods83
No Bart there is not an exact method without a pressure barrel, . . .
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Wrong.
RSI - PressureTrace
It uses your barrel; no pressure test barrel needed.
How's this for a "smart ass" response to your statement based on ignorance?
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