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Old January 20, 2013, 01:08 PM   #1
hoffbill
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AR 15 handloads: Difference barrel length makes?

I have loaded for my Remington 700 in .223 with 24" 1-12 twist for years. 50 & 55 gr

Just started loading for a WW15 with 18" 1-9 barrel. 55 & 60 & 62gr

I understand the loads have to be a little hotter because of the gas operation bleed off and less acceleration time in the barrel on the 15. Looking for your experience and tips.
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Old January 20, 2013, 06:58 PM   #2
Ifishsum
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In my experience the AR15 will operate just fine at any normal .223 pressures, usually even starting loads are usually plenty to cycle the action. Probably not an issue to worry about unless your bolt rifle loads were significantly reduced power - it's not like it needs hot loads. Work up just like you would with a bolt rifle and see what shoots most accurately, you'll know if it's not cycling properly. I haven't found them to be that finicky about gas pressure within normal load ranges.
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Old January 20, 2013, 07:24 PM   #3
hagar
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The M4 16 inch clones can sometimes be a little finicky, the mid length handguards less so.
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Old January 20, 2013, 07:34 PM   #4
oryx
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The difference in barrel lengths and a gas system does not necessitate a HOTTER load. Different powders may be usedwhich can change the burn rate. Don't exceed recommended pressures.
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Old January 21, 2013, 06:23 PM   #5
hoffbill
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Thanks guys,

I am using H335 and will just load to a reasonable velocity and good accuracy then.
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