Use of Magnum Rifle Primers

Sea Buck · April 12, 2009, 08:48 AM

I visited my local gun shop yesterday for some large rifle primers. They were sold out of every primer box in the house execpt large rifle magnum primers which I snapped up...the last box.I load for 30-06, 308, 243, and 30-30. How should I adjust my loads for the use of these. I usually load down any way...I just don't need all the blast from 308 and '06, but I like my 30-30 close to max, and my 243 to shoot flat. Or, just keep'em and trade off for some standards. On another note, the shop was pretty much sold out of semi-auto hand guns,popular calibers of ammo,(I bought the last brick of 22LR) powders, cases, dies,case lubes,And much more.

plainsman456 · April 12, 2009, 08:54 AM

They will work just load down 5-10% to start with,then adjust your load as you go.Good Luck

kraigwy · April 12, 2009, 10:46 AM

I seldem use anything but Magnum primers in my rifles. With any mid range loading you'll be fine.

I found the magnum primers to be more consistant in rifles.

If you're worried about it, like mentioned reduce the load a tad and work your way up or down until you get the accuracy you desire.

crowbeaner · April 12, 2009, 06:27 PM

I generally drop back 2 full grains when switching to magnum primers in my '06 loads and bumping them back up 1/2 grain at a time while checking for primer signs indicating hinky pressures. H380 is about the only powder that I feel requires the use of a hot primer because of the grain size; I used to shoot a LOT of 22-250 and CCI 250s with that powder.

April 12, 2009, 08:48 AM	#1
Sea Buck Senior Member Join Date: September 9, 2008 Location: New England,Florida Snow Bird Posts: 312	Use of Magnum Rifle Primers I visited my local gun shop yesterday for some large rifle primers. They were sold out of every primer box in the house execpt large rifle magnum primers which I snapped up...the last box.I load for 30-06, 308, 243, and 30-30. How should I adjust my loads for the use of these. I usually load down any way...I just don't need all the blast from 308 and '06, but I like my 30-30 close to max, and my 243 to shoot flat. Or, just keep'em and trade off for some standards. On another note, the shop was pretty much sold out of semi-auto hand guns,popular calibers of ammo,(I bought the last brick of 22LR) powders, cases, dies,case lubes,And much more.

April 12, 2009, 10:46 AM	#3
kraigwy Senior Member Join Date: June 16, 2008 Location: Wyoming Posts: 11,061	I seldem use anything but Magnum primers in my rifles. With any mid range loading you'll be fine. I found the magnum primers to be more consistant in rifles. If you're worried about it, like mentioned reduce the load a tad and work your way up or down until you get the accuracy you desire. __________________ Kraig Stuart CPT USAR Ret USAMU Sniper School Distinguished Rifle Badge 1071

April 12, 2009, 06:27 PM	#4
crowbeaner Senior Member Join Date: June 4, 2007 Location: Upstate SC Posts: 1,943	I generally drop back 2 full grains when switching to magnum primers in my '06 loads and bumping them back up 1/2 grain at a time while checking for primer signs indicating hinky pressures. H380 is about the only powder that I feel requires the use of a hot primer because of the grain size; I used to shoot a LOT of 22-250 and CCI 250s with that powder. __________________ If you want your children to follow in your footsteps, be careful where you walk. Beware the man that only owns one gun; he probably knows how to use it. I just hope my ship comes in before my dock rots.

April 12, 2009, 08:54 AM	#2
plainsman456 Senior Member Join Date: December 31, 2008 Posts: 260	They will work just load down 5-10% to start with,then adjust your load as you go.Good Luck