[PecosRiverM]

My Dad wants to know which primers are hottest. He's been using CCI for years and wants to try a hotter primer.

Thanks for your help and knowledge

[The Bushmaster]

Winchester are hotter then CCI, but I don't know if they are the hottest though...My chronograph indicates that, as a whole, Winchester are just a bit faster with the same powder charge by 20 to 50 fps. I use CCI and Winchester to make those minute adjustments to a load...

[USSR]

Winchester.

[ForneyRider]

[quote]Winchester/quote]

+1.

[Galil5.56]

Don't know what size you are looking for, but my old Federal large rifle mag primers seem VERY hot, if my chronograph results are any guide. Their mag Pistol primers seem "hot" as I recall as too.

[PecosRiverM]

sorry keep leaving out the important stuff.

It's for his 25-06.

[azar]

I asked a similar question recently. You can read through the discussion here (http://www.thehighroad.org/showthread.php?t=308509&highlight=primer+characteristics) if you like.

[PecosRiverM]

Thanks Azar

I'm still trying to catch up on reading all the older posts. (Lots of valuable info here):D

[LeonCarr]

At one time, the Federal 215 Large Rifle Magnum was the hottest primer. It was developed for the .378 Weatherby Magnum, which at the time of its development was the largest capacity case commercially produced, and no other primer would properly ignite that much powder.

Just my .02,
LeonCarr

[mc223]

http://www.6mmbr.com/PrimerPix.html

[BsChoy]

look like remmys are by far the hittest (of the domestics)by the size of the flame at least....not sure if that covers all of the basic physics questions
though

[Deavis]

mine are all the same temperature because I store them in the same ammo can :)

Part of me didn't want to do it but the other part won out

[PecosRiverM]

I understand Deavis. I go through the same battle daily.:D

[ArchAngelCD]

Winchester primers are hotter than both CCI and Federal. I don't know about Remington primers though I've heard they are very hot.

[Walkalong]

Old time Benchresters rued the day they changed priming compounds years, many years, ago. The newer compounds were more "violent" and were not as accurate as the older primers. I do not remember the exact compounds etc.

[SlamFire1]

The basic problems with primers is that they are all made of chemicals in processes that are highly varible.Each lot is different from the next. Basically primers are made within tolerances, and I don't know, nor will the manufacturers share the data.

In my experience my Winchester standard primers aways gave me slightly more velocity with the same charge than Federal, CCI standard primers. Even more than CCI#34.

If you want more energy get "magnum" primers of any brand. But don't be surprised if one lot of magnum primers is a little hotter than the next.

You don't know how the biscuit will taste until you bite into it, and then, it is too late.

[Galil5.56]

I agree about variability within reason. From what I have seen, basically priming compound is manually squeegeed into the cups using experience as their guide to do the job right, and is a rather skilled position. I have read that BR primers are nothing more than primers made by the most skilled/consistent worker, then boxed, stamped, and labeled as BR.

I do think perhaps the priming compounds makeup varies from makers, and perhaps one makers "mix" is "hotter" or "cooler" depending on composition even when a similar amount is used?

[rbernie]

http://www.thehighroad.org/showpost.php?p=3936874&postcount=28