Not a fast twist but I used a 12 tw on a CZ. My rifle just hasn't shot as well as I thought. This winter I'll rebed it. I'd be interest if anyone has got the 22 TCM to shoot well.
Yes I used the brass 22 TCM cases not their nickle plated cases. At one time the all brass brass was hard to get , at least for me. When the case was first introduced, Kiff wouldn't make me a factory style reamer. He sent me their spec's and I reduced the base dia and neck dia. A buddy I hunt squirrels with in Nev had one of factory rifles which was a total piece of junk. He had a old take off Rem barrel and chambered the new barrel with my reamer. He's having a hard time with accuracy. I don't think it's the reamer, I don't get any bolt click . If memory serves me right I have about .003 over a loaded round. My dies are one of the first Hornady made. I used a Lilja barrel. I bedded the action in one of my varmint CZ laminate stocks. I just blamed the poor shooting to a sloppy bedding job on my part. I like the case, the case volume from one of my fired cases is about the same as my fired case for the 22 K Hornet. I wanted to think the 22 TCM was a modern Hornet a much stronger case.
Sounds like you built a rifle that should be capable of being accurate. I've seen bedding make a difference but not take a gun that doesnt shoot ok and make it great.
Sounds like you built a rifle that should be capable of being accurate. I've seen bedding make a difference but not take a gun that doesnt shoot ok and make it great.
If after bedding and I'm not happy it will be rechambered in something to cleanup the old chamber and giving a fresh throat. I don't think i have 100 or 150 rounds down the tube though. I'm really surprised more people aren't chambering for it.
Im torn. I have a gun that I've thought about doing a rimmed version of the 22tcm on 357 or 38 special brass. Its a falling block so I think it would be a good fit to have the rim. Could also do a 221 rimmed with starline 357max brass.
Im torn. I have a gun that I've thought about doing a rimmed version of the 22tcm on 357 or 38 special brass. Its a falling block so I think it would be a good fit to have the rim. Could also do a 221 rimmed with starline 357max brass.
That sounds like a fun project. New or old falling block? Have you ever section the head of the 38 vs 357 for web thickness. It would be interesting to section a 360 Dan Wesson and 357 Max to compare. The TCM case I think was beefed up in the web because it was being used in a 1911 platform. I'll tell you a dumb thing I did using the TCM case. I had fire formed 3 cases for my 20 Boomer but decided to send 5 cases to the die maker. I ran down stairs to load up 2 more case. My fire form load was 10 grs of 296. But my brain was saying 12 grs, rule one , verify and I didn't. When I touched one off and knew right away that wasn't right. I had to lean on the bolt to open. Luckily I had used a new cone nosed bolt with .062 firing pin from Kiff. No gas leak. Primer actually didn't look too bad. But I had a mini belt above the extractor groove. That was a huge over load but the TCM case stayed together.
Wow. I bet it formed the case with a nice crisp shoulder!
One thing about doing a falling block is more case at the web is supported than a bolt gun. This one is a BF Arms. Extraction isn't the greatest but I dont think I'd he running it at max loads so it should work. It probably is a good idea to section a couple cases and compare web thickness.
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