223 question

314EPW · December 20, 2012, 08:53 AM

I want to load 223 for my AR.I want to use mag primers.Should I back off on the powder?I am useing IMR 4895 24.2 gr with 68 gr bullets.

jwrowland77 · December 20, 2012, 09:46 AM

Safe thing to do if switching any component, is to back your charge off by 5% or so and work back up.

FlyFish · December 20, 2012, 09:47 AM

I'm not familiar with that particular load, but the simple answer is - yes, back off perhaps 10% or more and work up your load again if you make any change in components, and particularly if you change from a standard to magnum primer.

hooligan1 · December 20, 2012, 10:30 AM

Ditto 10% when a component is changed, then work up as wanted.

December 20, 2012, 08:53 AM	#1
314EPW Senior Member Join Date: June 14, 2007 Posts: 108	223 question I want to load 223 for my AR.I want to use mag primers.Should I back off on the powder?I am useing IMR 4895 24.2 gr with 68 gr bullets.

December 20, 2012, 09:47 AM	#3
FlyFish Senior Member Join Date: January 20, 2009 Location: Overlooking the Baker River Valley Posts: 1,402	I'm not familiar with that particular load, but the simple answer is - yes, back off perhaps 10% or more and work up your load again if you make any change in components, and particularly if you change from a standard to magnum primer. __________________ NRA Benefactor Life Member SASS #84900 03 FFL Pemigewasset Valley Fish & Game Club

December 20, 2012, 10:30 AM	#4
hooligan1 Senior Member Join Date: July 18, 2010 Location: Independence Missouri Posts: 2,859	Ditto 10% when a component is changed, then work up as wanted. __________________ Thanks for coming!

December 20, 2012, 09:46 AM	#2
jwrowland77 Senior Member Join Date: March 23, 2012 Location: Conway, Arkansas Posts: 546	Safe thing to do if switching any component, is to back your charge off by 5% or so and work back up.