Magnum primers in a 35 whelen

kaniac

kaniac

New member
I'm still fairly new to reloading, I've reloaded a few hundred shells but I don't really push it very much. I usually stay a few grains under max and don't do anything crazy. But I just primed up about 60 cases with federal LMR primers to fool around with some W-748 and I realized I have a couple cans of IMR 4064 and 4895 that are just sittin around. Was just wondering if anyone likes magnum primers behind a stick powder or if there's a reason it's not in my manuals.
 
I'm loading for a Remington 700 and I have a bunch of 250 grain hornady RN and PSP's if anyones got some secrets they want to part with.
 
Try a Hodgdon Reloading manual. Both powders are shown. To my knowledge all '06 case variations, 257 thru 35s, do well with stick or extruded powders, and since you load light, the effect of magnum primers
Is probably taken care of. In fact, if you hunt in cold weather they might help with ignition. On the other hand watch for over pressure signs in hot weather
 
Magnum primers are all I buy and load. Some people say they equal 1 gr. of powder. I load for accuracy and not speed. Whatever load shoots the best, that is what I use. I just watch the fired cases for signs of pressure and have never had a problem with more than 10,000 loads. Just makes it easy when stocking supplies. I don't load pistol ammo, so that may be different.

Tom
 
Did a primer experiment using four different primers. Only thing different in my 7x57 reloads were the primers. Three different standard kinds and one magnum type. Shot my most accurate rifle that I knew would reveal any difference where the bullets would hit on a 100 yd target.

After shooting all 16 rounds, had basically one hole about 1/2" wide and not quite 3" long. The magnum primer reloads hit the highest on my target.

So, OK to use magnum primers, just expect them to hit higher than a standard primer, providing you don't reduce the powder amount.
 
Typically mag primers are used with ball powders and cases that are large like a 300 mag . However mag primers can be used in any load so long as you work up the load from the data in the manual. In my son's 35 whelen I use a standard primer and 56 grains of H4895.
 
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