i see where some of you are not using mag primers in heavy cases. I have been loading WLR for many years in my .260 ,7MM-08, 280,.. and so on..not using ball powder. will this primer be ok in my 7-08 with W-760..

The only time most people use a magnum primer with ball powders is when shooting/hunting in very cold temperatures; most other times plain primers work fine.

quote:

Originally posted by vines:
i see where some of you are not using mag primers in heavy cases.

Would you care to explain your meaning of 'heavy cases?' That's a new one for me.

Some cartridges shoot better (including a 308 Win. and a 357 Herret I have) with magnum primers even when not using ball powder and I've never found Win. 760 particularly hard to light even with regular primers. You might try experimenting with magnum primers (I'd suggest CCI 250 primers) to see what works best for you.

onefunzr2---[ belted magnum cases..] 7mm-mag 300 win. mag. 338 win mag.. and so on.. is that good

quote:

will this primer be ok in my 7-08 with W-760..

yup...no problem.

I use (at times) H-414 in the .30-06 with standard large rifle primers....never fails me!

In some large capacity cartridges such as the .358 X .404 IMP for example, hang fires with some ball powders and std. large rifle primers were the rule. The powders that come to mind were WCC844 (335) and Wcc846(BL-C2). For the most part ,but not always, the Magnum primers corrected the problem.
There were other ball and extruded powders that yielded hang fires but it would take some data digging to find them. roger

I just got 2000 LR primers with the intention of loading the .300 win mag.

In my Lyman manual, all the .300 win mag data was developed using the WLR primer.

i might add...
if you are presently using regular primers and decide to try a magnum primer, back your load off a few grains(10%) as a starting load and work back up from there with the magnum primer. the hotter primers will increase pressure. especially, i believe(correct me if i'm wrong, guys)), with ball powders.....
i saw no mention of this, so i thought i'd pipe up for safey's sake.

I`ve never used a mag primer in my rifle loads, then again I don`t load for anything over 30-06 size.
My 708 loads with H414 (WW760) were with CCI-br and Rem 9 1/2 primers and velocities were quite consistant IMO. I prefer extruded in most cases though where std primers work fine. If I was planning on stuffing a ball powder in a 338 mag I`d likely start them with a mag primer.

I've tried Federal, CCI, Winchester and Remington primers in both the large rifle and large rifle magnum versions in a variety of cartridges. In cartridges the size of 308 Winchester and larger no adjustment in powder charge need be made UNLESS the load was worked up with Remington primers in which case back off by 2 grains.

I even tried CCI 250 Large Rifle Magnum primers in 44 Remington Magnum cartridges with H110/Win. 296. In this relatively small cartridge, I had to back off the powder charge by 1.5 to 2 grains.