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Rem. 209 primers are almost impossible to get and the data I have gives pressures using CCI 209's very similiar pressures. Are the CCI primers hard to get? Are they the same physical size as the Rem. primers? I really don't want to use a primer that will enlarge the primer pocket like the Cheddites' do

I haven't been reloading much lately & didn't know Rems were scarce.
I did try a batch of CCI 209s & found that they went in fine , but the tail end more often than not stuck out proud from the bottom of the shell head...you could feel the end rim of the primer...I quit using them as I didnt like that, also they seemed like they might scratch the area around the striker in the final part of lock up.
Perhaps it was my set up.Winchester primers can give low psi with the right recipe...I used to use 700x with them I think.
This happened with AA & Rem sts
hope your fit better
cheers
franc

This topic appeared last week and here are my dimensions for the primers I had on hand:
Nobel .245
Fiocchi .244
Remington .243
Winchester .242
CCI .242
Increase your seating pressure a bit and your problems will cease.

From the post "Minor Reloading Mishap"
Glad to hear that you are alright. The one question I have is that you stated that the Cheddite primers are a little oversize. I don't know what primers you use, but Cheddite 209 and Winchester 209 are compatable are far as size and mechanics for reloading. Cheddite and Winchester both have a smaller diameter step of .240-.241 and then to the larger seating area of .244-.245. CCI .209 and Remington 209 STS are smooth and don't have a step, they both mike .241 front to rear.

The only primers that I know of that are compatable is the Cheddite 209 and Winchester 209. CCI 209 seem to be a milder primer, but the difference just changing between CCI 209 and Remington 209 can be 1,000 psi or greater.

Thanks all, I have been using Rem. primers so I hope that the smaller by .001 CCI primers will not be a problem. Frank, I have loaded allot of low pressure and have settled on the Solo 1000. Of course, wouldn't you know it, I have allot of powder here and allot of shot, hulls and wads all set up for the Rem. primers. That was the reason I asked, I didn't want to have to go out and buy other new componets. I am using the old Peters Blue Magic and Rem. RTL hulls.

The Euro primers in general seem to run larger. Using them makes case (American)unsuitable for American primers as primer pocket is expanded & fit is not tight and gas blowback results.
Aside from that, they work fine.

JDW, when I went to the Claybuster,(then new) Lightening wad(4100-12-B), there really no recipies out there for that new wad. I called Claybuster and they gave me some good info on using Solo 1000 in a Rem. hull with Rem. primers. Then in 2004, the Accurate powder reloaders guide, does show the use of the Lightening wad with Solo 1000, in a Rem. hull using CCI 209's. But, they give no info for using Rem. primers of any sort with their powders, only CCI's. But, the info they gave me earlier shows they are using the same recipie, only changing the primers. Now I feel even dumber. On the Accurate Powder site, the show using Rem/Win/CCI interchangeable. Hmmmmmmmm I am loading 1oz. loads, 17.8 gr. of Solo 1000, Rem. hull, Claybuster 4100-12 wad. Hmmmmmm Could this be true?

Erik is quite right. Win 209s fall out of a Cheddite or Fiocchi hull on occasions and the Fiocci or Cheddite 209's I had to buy to reload Cheddite and Fiocchi will, in my experience, enlarge the primer holes in an AA hull so one is stuck with using Fiocchi primers in this situation. I just put the calipers on some of my Cheddite 209 primers. they are averaging .243 in diameter whereas a sampling of WW 209 primers average .241.
Quod erat demonstrandum, as the beak at my school in Limeyland would say, in 1950 or so. So there, as we might say today.
Mike

Dave, in looking at Accurates loading data, I see that they list Win/Rem/Ched primers. I know that Winchester and Cheddite are interchangeable. I don't know about Remington. I do know that the CCI 209 primers are milder and for some low-pressure loads I use they are recommended. I use information from the 16 ga Reloaders Group, and all of those loads are pressure tested and velocity tested. For 12 ga and 20 ga I use the new Lyman's Reloaders Handbook, and like I stated earliler, using the same componants and just changing the primer could result in a lot higher pressure.
Also in regard to what Mike said, I have new primed Cheddite 16 ga hulls with Cheddite 209 primers. I have de-primed some so that I could use CCI 209 in them, and have had no problem with them "falling out", or being loose. Like I stated before the Cheddites and Winchester primers are "stepped" in size whereas the CCI 209 and Remintons are straight.
Fiocchi primers are bigger in diameter, never used them so don't know their size. So I can see a Winchester primer being loose or falling out. They sell a tool to ream out your shell to use them, also have a tool to re-condition your primer hole so the primer is tight.