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Old June 2, 2012, 12:21 AM   #1
baiwan
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Location: Sofia, Bulgaria
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IMR 3031 powder

I have old Federal 30-30 amo that won't group.
I decided to reload them with IMR 3031 powder that was in the store.
Can this powder be used for .243 ammo? It's in the chart for 75 Grain bullets,
and mine are 80 and 100 Grains.
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Old June 2, 2012, 07:36 AM   #2
243winxb
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243 win.

Quote:
Can this powder be used for .243 ammo?
IMR-3031 From 29.6 grains to 35.5 grains for 100gr bullets in the 243 win. The powder is to fast burning for best accuracy, but usable. Start low on the powder charge and work up for safety.
Data from Steves pages > http://www.stevespages.com/page8a.htm Old IMR data shows a maximum of 35.5gr- 2825 fps-100 gr bullet- 51,300 cup pressure-COL 2.710"- 9 1/2 primer.
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Old June 2, 2012, 08:43 AM   #3
baiwan
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IMR 3031

I understand that this is a fast burning powder which is better for my 16" 30-30 barrel.
Can I reload all my ammo with the max. powder weight - i.e. 30.5 Grains without testing with with smaller quantity?
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Old June 2, 2012, 09:00 AM   #4
baiwan
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Table

I just read the table - it says from 26.5 to 35.5 Grains so 30.5 is somewhere inbetween and it might do for hunting?
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Old June 2, 2012, 09:16 AM   #5
Brian Pfleuger
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Start at starting loads and work up.

No, you can not start at max without working up, unless you're willing to risk your gun and your safety.
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Old June 2, 2012, 04:04 PM   #6
243winxb
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243 win- 100 gr bullet- IMR 3031

Quote:
so 30.5 is somewhere inbetween and it might do for hunting?
I would guess yes. You are below the 10% reduction of the maximum load listed by IMR in there powder guide. 29.6 grains is starting, your post is wrong above.
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