Haywizzle Posted March 30 Author Share Posted March 30 18 minutes ago, ysrracer said: That's a pretty heavy crimp to me. I don't go that deep. I'm measuring the crimp at .372". We didn't get any tumbling issues on the 42 rounds we fired during ladder testing. Link to comment Share on other sites More sharing options...
Joe4d Posted March 30 Share Posted March 30 1 hour ago, ysrracer said: That's a pretty heavy crimp to me. I don't go that deep. concur, plus he is running them through a 9mm FCD... which is probably compressing things to .355... But eh ? 10 sd isnt horrible, and if he can clean gun without a grinder I guess things are ok Link to comment Share on other sites More sharing options...
Zachjet Posted March 31 Share Posted March 31 This looks like a great match, I wish I wasn’t busy on those dates… definitely have to mark my calendar for next year Link to comment Share on other sites More sharing options...
ysrracer Posted March 31 Share Posted March 31 5 hours ago, Haywizzle said: I'm measuring the crimp at .372". We didn't get any tumbling issues on the 42 rounds we fired during ladder testing. I don't go by what it measures, I load a few and pull one. I go by what it looks like. Link to comment Share on other sites More sharing options...
Vic Posted March 31 Share Posted March 31 Man, I must be a lucky sonofabitch. Other than pure hunting handgun loads, Ive never once crimped a revolver load for my competition shooting. I use a standard RCBS die set and use the taper crimp die, but do not roll crimp like I see the pulled bullets displayed here. Link to comment Share on other sites More sharing options...
Farmer Posted March 31 Share Posted March 31 (edited) 2 hours ago, Vic said: Man, I must be a lucky sonofabitch. Other than pure hunting handgun loads, Ive never once crimped a revolver load for my competition shooting. I use a standard RCBS die set and use the taper crimp die, but do not roll crimp like I see the pulled bullets displayed here. Those are taper crimped with a 9mm die. Edited March 31 by Farmer Link to comment Share on other sites More sharing options...
Vic Posted March 31 Share Posted March 31 My reading comprehension needs some fine tuning, was relying on my eye. Whew, thats some serious taper crimp to bite the bullet that deep? Link to comment Share on other sites More sharing options...
gargoil66 Posted March 31 Share Posted March 31 1 hour ago, Vic said: My reading comprehension needs some fine tuning, was relying on my eye. Whew, thats some serious taper crimp to bite the bullet that deep? Vic: Doesn't take much to do that to a powder coated, lead bullet. GG Link to comment Share on other sites More sharing options...
shred Posted March 31 Share Posted March 31 That amount of crimp also doesn't matter for accuracy. It swages back out with 20K PSI pushing on the back end. Link to comment Share on other sites More sharing options...
ysrracer Posted March 31 Share Posted March 31 So there you have it. Much like Goldilocks, it's either too much crimp, not enough crimp, or just right. Happy Easter to All Link to comment Share on other sites More sharing options...
ltdmstr Posted March 31 Share Posted March 31 Crimp for revolver rounds is completely different from semi-auto. Revolver rounds, especially for magnum loads, typically use a roll crimp to prevent setback from recoil. That's why revolver bullets often have a cannelure. Semi-autos use a taper crimp and rely on adequate case sizing to prevent setback. What's shown in the pictures above is perfectly fine and will make no difference in accuracy. Link to comment Share on other sites More sharing options...
Joe4d Posted April 1 Share Posted April 1 3 hours ago, ltdmstr said: Crimp for revolver rounds is completely different from semi-auto. Revolver rounds, especially for magnum loads, typically use a roll crimp to prevent setback from recoil. That's why revolver bullets often have a cannelure. Semi-autos use a taper crimp and rely on adequate case sizing to prevent setback. What's shown in the pictures above is perfectly fine and will make no difference in accuracy. revolver rounds dont set back.. they do the exact opposite,, They headspace off the rim or a moon clip. They arnt getting slammed into a ramp before firing like auto rounds. But generally since revolvers dont headspace on case mouth, a roll crimp into a groove does a pretty good job.. But as this is mostly talking about competition, people want smooth fast reloads.. Sooo most of us use smooth side, no groove bullets and a taper crimp to hold the bullet in place. Link to comment Share on other sites More sharing options...
ysrracer Posted April 1 Share Posted April 1 3 hours ago, ltdmstr said: Revolver rounds, especially for magnum loads, typically use a roll crimp to prevent setback from recoil. Bullet creep, moves forward. I've had one laying in the cylinder with the powder behind it. Link to comment Share on other sites More sharing options...
ltdmstr Posted April 1 Share Posted April 1 Sorry guys, major brain fart on my part. And you're are absolutely right. Revolver rounds get longer not shorter. Back when I used to shoot at public ranges, one time a guy showed up in the stall next to me with a Ruger Super Redhawk in something like 454 Casull or 480. Figured I didn't need to be around for that, so started packing up. He fired one round and the cylinder locked up. Link to comment Share on other sites More sharing options...
Joe4d Posted April 1 Share Posted April 1 6 hours ago, ltdmstr said: Sorry guys, major brain fart on my part. And you're are absolutely right. Revolver rounds get longer not shorter. Back when I used to shoot at public ranges, one time a guy showed up in the stall next to me with a Ruger Super Redhawk in something like 454 Casull or 480. Figured I didn't need to be around for that, so started packing up. He fired one round and the cylinder locked up. yeh happens sometimes with the heavy stuff without a good crimp. or 929's with factory 9mm. Link to comment Share on other sites More sharing options...
MikeyScuba Posted April 1 Share Posted April 1 In slightly veering off topic a bit I had the same issue with my open 2011 for steel as I did last year..... I can't hit anything with it. I have been shooting and dryfiring nothing but my open revo since January. There is something to be said about the accuracy of a red-dot revo. Or I'm shooting the 2011 too fast? I was shooting my 6 sided star with 4" plates, I wanted to try the 6" first but my wife said no it's the 4's lol. Open revo was easy, the 2011 wasn't. 4 weeks left to practice. There is also the Falling Steel World Series @ Rowan at the end on May, have not been there before. Link to comment Share on other sites More sharing options...
ysrracer Posted April 1 Share Posted April 1 2 hours ago, Joe4d said: yeh happens sometimes with the heavy stuff without a good crimp. or 929's with factory 9mm. Yep, my 929 wouldn't fire factory ammo worth a damn. Link to comment Share on other sites More sharing options...
Joe4d Posted April 1 Share Posted April 1 1 minute ago, ysrracer said: Yep, my 929 wouldn't fire factory ammo worth a damn. only thing I found that worked was Remington bulk 147.. Blazer 124's, couldnt make it a cylinder . AMerican eagle, nearly came out I wouldnt trust them Link to comment Share on other sites More sharing options...
ysrracer Posted April 1 Share Posted April 1 1 hour ago, Joe4d said: only thing I found that worked was Remington bulk 147.. Blazer 124's, couldnt make it a cylinder . AMerican eagle, nearly came out I wouldnt trust them Agreed, American Eagle was the worst. Link to comment Share on other sites More sharing options...
Dr. Phil Posted April 2 Share Posted April 2 22 hours ago, MikeyScuba said: In slightly veering off topic a bit I had the same issue with my open 2011 for steel as I did last year..... I can't hit anything with it. I have been shooting and dryfiring nothing but my open revo since January. There is something to be said about the accuracy of a red-dot revo. Or I'm shooting the 2011 too fast? I was shooting my 6 sided star with 4" plates, I wanted to try the 6" first but my wife said no it's the 4's lol. Open revo was easy, the 2011 wasn't. 4 weeks left to practice. There is also the Falling Steel World Series @ Rowan at the end on May, have not been there before. And don't forget the Blue Mountain Steel match in October at Ontelaunee! Loads of fun! These last 4 weeks will go by quickly! Link to comment Share on other sites More sharing options...
MikeyScuba Posted April 2 Share Posted April 2 Too much traveling I'm afraid. But we will do the Blue Ridge match followed by their IRC warmup then the IRC. You PA guys have all the good matches this year! Link to comment Share on other sites More sharing options...
ysrracer Posted April 2 Share Posted April 2 49 minutes ago, MikeyScuba said: Too much traveling I'm afraid. But we will do the Blue Ridge match followed by their IRC warmup then the IRC. You PA guys have all the good matches this year! Did you solve your loading problem? Link to comment Share on other sites More sharing options...
MikeyScuba Posted April 2 Share Posted April 2 22 minutes ago, ysrracer said: Did you solve your loading problem? ? I think you have me confused with someone else. Loading for revo is something I figured out years ago. Link to comment Share on other sites More sharing options...
Dr. Phil Posted April 2 Share Posted April 2 1 hour ago, MikeyScuba said: Too much traveling I'm afraid. But we will do the Blue Ridge match followed by their IRC warmup then the IRC. You PA guys have all the good matches this year! Blue Ridge lists "ICORE Plus". What is the plus? I read that the IRC is at Ontelaunee this October. Is that where the warmup match is also? We do have some great matches. Most are 2 hrs. or so for me. Way worse for you! Link to comment Share on other sites More sharing options...
MikeyScuba Posted April 2 Share Posted April 2 If you go digging back to the Icore unoffical page Dave H from Blue Ridge is running their falling steel match the weekend before the IRC, then Monday setting up a falling steel irc practice running Tuesday/Wednesday. The practice match and the big knockdown steel match aren't listed yet. It's an 8hr run one way. But with that much shooting, hell yes we will be there. Link to comment Share on other sites More sharing options...
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