Change to mag primer

jonnefudge · November 18, 2017, 02:04 PM

I am thinking about develping a new load for my 308 using mag primers instead of standard LR. It's cci 250, vv N550, 185 juggernauts, lapis brass.

Is there anything particular safety consideration that I should think about using mag primers? Does it effect starting load?

/jonne

BWM · November 18, 2017, 03:23 PM

Start with less powder and work you up a good load !

Ifishsum · November 18, 2017, 05:31 PM

I can't see needing to back up a book starting load just for magnum primers - they aren't that much different. As long as you do the proper work up with them, I've never run into any issues.

November 18, 2017, 02:04 PM	#1
jonnefudge Member Join Date: November 20, 2016 Posts: 76	Change to mag primer I am thinking about develping a new load for my 308 using mag primers instead of standard LR. It's cci 250, vv N550, 185 juggernauts, lapis brass. Is there anything particular safety consideration that I should think about using mag primers? Does it effect starting load? /jonne

November 18, 2017, 03:23 PM	#2
BWM Senior Member Join Date: November 6, 2013 Location: SW IN Posts: 438	Start with less powder and work you up a good load ! __________________ Man that likes guns. Navy. USS Ponchatoula AO 148 USS Vesuvius AE 15

November 18, 2017, 05:31 PM	#3
Ifishsum Senior Member Join Date: September 15, 2005 Location: Oregon Posts: 1,033	I can't see needing to back up a book starting load just for magnum primers - they aren't that much different. As long as you do the proper work up with them, I've never run into any issues.