Just curious what some opinions are concerning using small rifle primers in 7.62x25. Will be shot from a prewar TT33 and brass is converted from 223 if that makes a difference. I did an internet search and did not find a real definitive answer. I'll try to source some small pistol primers if this is considered to be unsafe.
Small rifle primers in 7.62x25
- Thread starter jongun
- Start date
I've got Clays, HP-38, H110 and lilgun to try with my Lee 93gn .311 cast bullets. Pistol will be here Tuesday and I'd love to have it out to the range next weekend but need to know if the SR primers are safe to use or if I need to head out and see if my local shop has any SP primers in stock.
My only concern was light primer strikes on the harder rifle primers but in reality if guys are using ammo designed for sub machine guns in their TTs I should be OK with modern day primers that are probably softer than surplus primers anyway.
Several years ago before boxer primed 7.62x25 was available I experimented around with converted .223 brass. It will work and should last due to the brass thickness. However, you may have to inside ream or outside turn the necks as the brass will be quite thick from necking down the thicker case walled 223s.
Without reaming and with a bullet seated and crimped the neck measures under the max(.334) for proper chambering. Of course I'll wait to actually make up some rounds just to be certain these dummies will chamber properly.
Lexthedestroyer
CGN frequent flyer
- Location
- Abbotsford, BC
Yeah, good luck with that. If your TT33 is anything like mine, it throws the empties hard and far. I'm always walking hunched over all over the range looking for my brass like a hobo looking for cigarette butts, lol.
The acid test will be whether they drop easily into the barrel chamber. If they do you're golden. Mind you I also used military brass which usually has thicker case walls than commercial brass which may explain the need for neck reaming/turning.
So glad that commercial boxer primed brass is now available.
Turns out after receiving my Tok the dummies with the unreamed brass wont chamber. Also figured out only the rounds with the bullets that I enamel coated will chamber. Both the enamel and alox coated bullets were passed through a sizer and never bothered to measure after sizing until I realized the chambering issue. Learn something new every day.
Agreed
