Primers fitting loosely in RST shells.

[Cory Rams]

I tried both federal and Winchester 209 primers in a couple of spent 2 7/8” RST 10 gauge hulls today. I can push both brands of primers completely flush with my thumb. Any tips or suggestions to get primers to seat with some holding force in RST hulls?

[Pete Lester]

I tried both federal and Winchester 209 primers in a couple of spent 2 7/8” RST 10 gauge hulls today. I can push both brands of primers completely flush with my thumb. Any tips or suggestions to get primers to seat with some holding force in RST hulls?

RST uses Cheddite hulls and they most likely get them primed with Cheddite primers. Cheddites can be slightly larger than American made 209 primers. There is a tool you can buy to swage the primer pocket tighter. A trick I have used with undersized 57 primers is to cut a length of plastic straw almost the same length as the narrow part of the primer. Slide it over the primer before seating the primer. The straw should provide enough friction to hold the primer in place. Be careful to not cut the piece of straw too long so that it covers the flash hole as that will most likely lead to a dud.

http://parkerguns.org/forums/showthread.php?t=31887&highlight=primer+hack

[Cory Rams]

RST uses Cheddite hulls and they most likely get them primed with Cheddite primers. Cheddites can be slightly larger than American made 209 primers. There is a tool you can buy to swage the primer pocket tighter. A trick I have used with undersized 57 primers is to cut a length of plastic straw almost the same length as the narrow part of the primer. Slide it over the primer before seating the primer. The straw should provide enough friction to hold the primer in place. Be careful to not cut the piece of straw too long so that it covers the flash hole as that will most likely lead to a dud.

http://parkerguns.org/forums/showthread.php?t=31887&highlight=primer+hack

Thanks! I knew there had to be a to fabricate for a tighter fit. I have 30 shells and probably will switch over to brass after I wear them out so I’ll try adding a straw instead of investing in a tool that I’ll end up never using again after my handful of rst cases wear out.

[edgarspencer]

Another member and I were just discussing this yesterday, and I find the Cheddite primers are anywhere from .0005" to .001" larger the a W209.
As Pete says, a primer pocket tool is the fix.

[Cory Rams]

I’m guessing it’s the “peener” tool?

[Bill Murphy]

Or a little hammer. My RST hulls are starting to shed their WW209 primers too.

[Harold Lee Pickens]

I havent had a problem--yet-- with WW209 primers in my RST and Herters/cheddite reloads. However I just picked up 3000 Cheddite primers($30/thousand) and will use them in my cheddite reloads from now on.

[Cory Rams]

I painted the primers with waterproof primer sealant and also the primer hole. I tried 11 rounds today and they all stayed put. I did try the straw trick and they stayed put but figured I’d try sealant as well.

[Cory Rams]

I knocked out my primers yesterday with the lee loader tool. I had to give a firm tap or two to get them out. The sealant seems to hold them in pretty good. This is my first go at shot shell reloading and I only have 11 spent RST 2 7/8” hulls currently so I don’t plan on it being a reoccurring practice. I bought three boxes of 10 RST shells to try out in my gun. When 30 hulls are eventually worn out I’ll switch over to some of my remington, federal, and Winchester spent 3.5” hulls I used in my browning gold. At least now I know not to buy cheddite hulls because the only primers have in my inventory for shotgun use are 209.

https://i.imgur.com/QjXPwR1.jpg

I’m gonna guess nail polish from the dollar store would do just as well.

[Jerry Harlow]

$1 nail polish from the dollar store. Different colors for different shot sizes.

[Robert Rambler]

Williams style primer pocket conditioner work fine for me.:)
Just a quick smack with a small hammer!

https://www.ballisticproducts.com/Universal-Primer-Pocket-Conditioner-10ga-410/productinfo/0740010/