primers

[timmy61]

i have a question, i have seen online i can sub magnum primers for standard primers. i have WLRM and i was wondering if i could use it with IMR-4350 and IMR-4831 in my 30-06? i have 150,168 and 180 gr hornady bullets

thanks
Tim

 

[Down South]

Yes, you can but rework your load.

 

[timmy61]

how much reduction you talking about? couple grains or percent?

 

[redneckbmxer24]

Go down a few grains and work back up. The chance of the same charge shooting great with the change to a magnum primer is slim to none so you're going to have to start from scratch anyway.

 

[timmy61]

how much is a few? 3 to 5 grains?

 

[redneckbmxer24]

Three below your standard should do it. Go back down far enough to do your ladder/velocity test all over again and find your nodes. If your starting at book minimum a lot of books (hornady especially) are perfectly safe to start at book minimum with a magnum primer but you might want to start 1gr less just to be safe. If you have a hornady book, they are very low on the low end so just start at their minimum charge for whatever bullet and powder you're using.

 

[timmy61]

ok thanks man. i was thinking about 3gr but wasnt totally sure

 

[timmy61]

one more question, would it work with IMR-4064? on the load data i use loaddata.com and its lower than hornady