Found primers and just bought 100 Winchester WLRM primers. Also bought 400 Remington 9 1/2M.

I have not had good results shooting the Winchester primers in Remington brass. They flatten even with moderate charges.

- Should I buy Winchester brass and hope I can get more WLRM primers?

- Or should I buy Remington brass and use the Remington primers?

(338 Win. Mag., Lee Collet Neck, Lee Seater, Redding Body Sizer)

I've never found it matters.

however what I have found lately, is that being able to pick up a few Large rifle primers from Winchester and Remington.. I've used them in loads that I traditionally have been using CCI and Federal primers in...

with the latter 2 the groups are real tight.. all touching... with both Win or Rem primers they open up to being bigger than an inch and more like 1.5 inches.

deer hunting, guess you can live with that..

shooting small varmints.. that can easily be the difference in a hit or a miss..

There is no compatability issue between one brand of brass and another brand of primer. If your results are unsatisfactory to you with WW primers, then you will find the same results even if you switch to WW brass.

BTW: How "flat" a primer's appearance has little or nothing to do with the performance of the load. Unless the primer is cratering, dimpling, or leaking gas (with a load of known acceptable pressure), then simply being "flat" is of no concern.

Never seen that problem. These days its hard to be too picky as you are lucky to find the componets you want in any manufacture.

To this very day I have never found different brands of primers to make any difference on anything accuracy wise. I have found variations in velocity but again, not enough to bother accuracy. I have found accuracy issues when using different brands of brass, like when using Remington brass. The Rem. brass is thicker and developes more pressure with the same load. That is with both brands resized the same, ie. partial-length resized.

I used to think that one particular load I have with Nosler partitions only shot descent with Fed. 215 primers but I know think it was a cleaning issue with the barrel. Just my observation.

I hardley ever use max loads I haven't seen any differants in in changeing primers.

I did find that I had trouble with Win large pistol primers haveing hard cups and causing light firing pin hits in my Red Hawk and tarus TI. revolvers.

The only primers I've had trouble with as a component as such were the Winchester WLR, WLRM and WSR when they went gold in color. Still have the problem in WSR., and WLR as I still have thousands left and resently( today) I had one fall out of a .223 at the range that was in once fired Black Hills Match Brass. A couple years ago a lot of Remington brass had large voids in the bodies; really bad stuff, not to mention the necks being beaten out of round.Good continuous quality in either Rem. or Win period is only a memory. roger

It is amazing how everyones experiences vary. Personally I have never had any problems with any primer brands except Remington and that was back in the early 80's. I also have not used them since except in factory ammo. I currently use the (gold cup) Winchester primers as well as Federal and CCI - no problems.

I read "Modern Reloading 2nd" by Richard Lee yesterday.

He talks about using only CCI, WLRM and a couple Remington pistol primers in the safety feed system.

There is definately a difference in the type of material used in the different brands. Lee said the Federal's are the most unstable. The CCI's are the safest.

I have decided to go with Winchester brass and the WLRM primers.

quote:

Originally posted by Stonecreek:
There is no compatability issue between one brand of brass and another brand of primer.

False.

Metal cup rigidity is different on the CCI and the WLRM primers. Also the lead styphnate in these brands is the "normal" mixture unlike the Federal. Both these factors play a role in performance especially when using hotter loads and varying lot tolerance.

quote:

BTW: How "flat" a primer's appearance has little or nothing to do with the performance of the load. Unless the primer is cratering, dimpling, or leaking gas (with a load of known acceptable pressure), then simply being "flat" is of no concern.

False.

Cratering(in a proper bolt face) is a sign of excessive pressure. Usually the primer will flatten first.

quote:

Originally posted by ar corey:
Cratering(in a proper bolt face) is a sign of excessive pressure. Usually the primer will flatten first.

Corey, I have shot Hornady Light Magnum loads and every one of those primers WILL flatten not to mention several other factory loadings. Also Winchester bolt faces are known for cratering primers on upper-end, yet safe loads. Also Winchester brass is known to be a harder-thinner wall brass than Remington, that will not show pressure signs as early as Remington brass. I have found Federal primers to flatten prior to the old silver Winchester primers with the same load and on a reduced loads. Were these loads un-safe? Not in my opinion, as the bolt opened with ease and the case extracted the same. The cases were partial re-sized and reloaded over 15 times with no problems. But Hell, we all know that if you load 1 psi. over the known safe pressure limits of a bolt chamber/barrel we will all be blown to bits with our modern bolt action rifles.

I have never mixed primers within a block of ammo, but then I have changed from say CCI to REM LR's and couldn't detect any difference from loading unit to loading unit.
One may be slightly harder than another and one may have slightly hotter briesence (if that's the word)but a fellow would have to be a lot better shot than me to discern the difference.
As far as the difference between Magnum primers and standard, when I tried that switch, I did the drop back and work up routine but to be honest, I couldn't tell any difference there either.
I wasn't using a Chrony when I did that. I was just going by the POI and the case appearance.
To me, a flattened (within reason) or cupped primer means little unless there are other signs.

quote:

Originally posted by Rae59:

Corey, I have shot Hornady Light Magnum loads and every one of those primers WILL flatten not to mention several other factory loadings.

With the short mag ammo. arriving a few years ago., pressures are being pushed to max. I do not consider them safe long term. The Hornady mag. ammo and many factory WSM loads are clearly too hot. Sticky bolt extraction is not a long term acceptable phenomenon.

quote:

Also Winchester bolt faces are known for cratering primers on upper-end, yet safe loads.

When you start to get primer cratering you are dealing with a weakened surface and a potential failure. I do not consider those loads safe. Perhaps not hazardous yet not comforting. I also have never been a fan of the Winchester rifle's. They have always been too profit motivated and it is reflected in their quality control and customer service.

quote:

Also Winchester brass is known to be a harder-thinner wall brass than Remington, that will not show pressure signs as early as Remington brass. I have found Federal primers to flatten prior to the old silver Winchester primers with the same load and on a reduced loads. Were these loads un-safe?

Not necissarily un-safe yet not as practical either. When I was getting flattened WLR primers in Remington brass I knew the loads were safe yet I lost an excellent safety and information indicator. When I switch to Rem. primers in the Rem. brass I could watch my primers flattening like clock work:

i.e.

57 gr's: primer slightly flat, edges rounded
58 gr's: primer edges starting to touch pocket brass, still has round
59 gr's: lost all roundness, slight line between primer and pocket still visible.
60.5 gr's: primer/brass line completely gone. Primer completely flat.

I am able to monitor the primers. It gives an excellent confimation to observe the primer doing this and seeing obvious increasing pressure. Not flying blind relying completely on reloading data.

quote:

Not in my opinion, as the bolt opened with ease and the case extracted the same. The cases were partial re-sized and reloaded over 15 times with no problems.

Again, I prefer to monitor the primer. It is crude yet builds confidence in developing a good long term charge. When I use the Win. primers with Rem. brass I lose that.

To each their own, Corey, but I did have to laugh at your comment about Winchester being too profit motivated. Remington had a safety issue for over 20 years with their lousy trigger/safety set up. (Many states filed lawsuits against them, one being Montana. I had two Remintons drop firing pins when the safety was released on a 3 pound triggers. Their answer was the gun owner should not have been pointing the barrel at anything they didn't want to kill, and they kept the cases tied up in court. Now we have a 7 pound factory trigger and a new safety design.)