ysrracer Posted February 2 Share Posted February 2 Link to comment Share on other sites More sharing options...
ysrracer Posted February 2 Author Share Posted February 2 Link to comment Share on other sites More sharing options...
dannyd Posted February 2 Share Posted February 2 Why don't you use a tapered crimp, with a bullet without a crimp grove? Link to comment Share on other sites More sharing options...
ysrracer Posted February 2 Author Share Posted February 2 5 minutes ago, dannyd said: Why don't you use a tapered crimp, with a bullet without a crimp grove? It's a .358 bullet in a 9mm case. I'm using 9mm dies so I'm guessing it's a taper crimp. Link to comment Share on other sites More sharing options...
Joe4d Posted February 2 Share Posted February 2 looks a bit severe, are you cutting through the coating ? Are you still having bullet creep problems ? Think you mentioned Bayou bullets ? I am using a 9mm taper crimp on my 38 short colt. with Bayou 147's without issue.. Maybe go to a 9mm FCD last station ? Link to comment Share on other sites More sharing options...
MikeyScuba Posted February 2 Share Posted February 2 While mine have a indent like that, it don't see lead. Link to comment Share on other sites More sharing options...
dannyd Posted February 2 Share Posted February 2 That deep for a taper crimp, in an automatic you would loose your head spacing capacity, but in a revolver with moon clips that would not be as important. Link to comment Share on other sites More sharing options...
RJH Posted February 2 Share Posted February 2 Does it jump out of the case? And how is your accuracy?. That's all that really matters Link to comment Share on other sites More sharing options...
Makicjf Posted February 2 Share Posted February 2 (edited) I'll measure my taper crimp, but I know I'm not cutting into bullets. I'm using bayou/Hoosier 160's (same mold as far as I can tell) that are .358 in starline 38 short colt brass. A 38 resizer; a 38 s&w bell with just opening enough to not cut the coating; a 38 s&w seater (1.20 oal) with the crimp back completely out, and 9 mm fcd with the stem just touching the bullet. This seems to iron out the bell, give good case mouth tension and not deform the bullet. I've done some wildcatting using 38 Super data and oal ( the case capacity was actually slightly more in the 38 short colt case than the 38 super) to hit major in short cases. It worked, and the pressure was within specs for 357. At an oal of 1.275 with the 160 I have half the amount of case purchase: at 1050 fps I have never had bullet creep, even without a comp. If your load works, I'd leave it alone, but that crimp seems excessive to me. Jason Edited February 2 by Makicjf Link to comment Share on other sites More sharing options...
testosterone Posted February 2 Share Posted February 2 If its accurate its totally fine. A luminary i was brought into shooting sports by, the rule was crimp until it tumbles then back off an 1/8th. He came to this shooting thousands of rounds of berrys 158's painstakingly in batches searching for the best process. He did very well at bianchi. Link to comment Share on other sites More sharing options...
pskys2 Posted February 2 Share Posted February 2 My guess is the crimp will be a bit under .370. Looks good as long as it's accurate don't worry. It would even shoot in a semi-auto, accuracy may or may not be affected just depends on the gun. Link to comment Share on other sites More sharing options...
bowenbuilt Posted February 2 Share Posted February 2 If it's the same diameter above and below the crimp line and the bullet does not move forward under recoil go with it. Link to comment Share on other sites More sharing options...
Farmer Posted February 2 Share Posted February 2 I’ll almost bet you’re getting brass spring back. Your die is crimping hard enough to crease the bullet but the brass springs back once’s it’s out of the die. That’s the reason for the same measurement. In your pic I can definitely see the taper in the bullet. Try measuring it just for giggles. But if it works, go for it. Link to comment Share on other sites More sharing options...
dannyd Posted February 3 Share Posted February 3 Anyone have a load for 38 short colt using 231 and a 158 grain lead bullet for shooting USPSA? Link to comment Share on other sites More sharing options...
ysrracer Posted February 3 Author Share Posted February 3 19 minutes ago, dannyd said: Anyone have a load for 38 short colt using 231 and a 158 grain lead bullet for shooting USPSA? Axe, and yee shall retrieve: Name: .38 Short Colt: 158gr Berry's RN: 231 3.7gr: OAL 1.20 Notes: S&W 627 5" Shots: 11 Average: 777 ft/s SD: 25 ft/s Min: 736 ft/s Max: 817 ft/s Spread: 81 ft/s Power Factor Average: 122 Power Factor Low: 116 Power Factor High: 129 Barometric Pressure: 30 in Hg Temperature: 57 F Bullet Weight: 158 Powder: 231 3.7gr Bullet: Berry's 158gr RN C.O.A.L.: 1.20 Primer: Fed SPP Case: Starline Link to comment Share on other sites More sharing options...
dannyd Posted February 3 Share Posted February 3 Thank you Link to comment Share on other sites More sharing options...
Carmoney Posted February 3 Share Posted February 3 That amount of crimp is perfectly fine. Link to comment Share on other sites More sharing options...
PatJones Posted February 5 Share Posted February 5 I've been shooting 357 diameter coated bullets in my 929. The bullets were pulling under recoil, so I switched to using a Lee 38 colt roll crimp die. It doesn't take too much roll crimp to keep them from pulling, mine look about like yours. Link to comment Share on other sites More sharing options...
ysrracer Posted February 5 Author Share Posted February 5 52 minutes ago, PatJones said: I've been shooting 357 diameter coated bullets in my 929. The bullets were pulling under recoil, so I switched to using a Lee 38 colt roll crimp die. It doesn't take too much roll crimp to keep them from pulling, mine look about like yours. Cool, thanks Link to comment Share on other sites More sharing options...
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