Rye Miles #13621 Posted August 30 Share Posted August 30 (edited) This crimp look okay? I’m doing this on a SS press, scroll down for picture sorry. Edited August 31 by Rye Miles #13621 Quote Link to comment Share on other sites More sharing options...
Rye Miles #13621 Posted August 30 Author Share Posted August 30 2 Quote Link to comment Share on other sites More sharing options...
Charlie Harley, #14153 Posted August 30 Share Posted August 30 A little over crimped, but I don’t see that as being a major problem. The cases will split sooner due to the excess bending of the lip. Theoretically the pressure will be higher, but there’s also evidence that a snugger crimp supports more consistent combustion and accuracy. Bottom line, I would rather over crimp than under crimp, especially in our game. Bullets sliding around in the case can lead to unpleasant outcomes. 3 2 Quote Link to comment Share on other sites More sharing options...
Eyesa Horg Posted August 30 Share Posted August 30 I crimp mine a little higher up in the groove and not quite to where it starts flattening the brass leaving that ring. I think that will weaken the mouth of brass and cause early splitting. JMHO 3 2 Quote Link to comment Share on other sites More sharing options...
Rye Miles #13621 Posted August 30 Author Share Posted August 30 (edited) 25 minutes ago, Charlie Harley, #14153 said: A little over crimped, but I don’t see that as being a major problem. The cases will split sooner due to the excess bending of the lip. Theoretically the pressure will be higher, but there’s also evidence that a snugger crimp supports more consistent combustion and accuracy. Bottom line, I would rather over crimp than under crimp, especially in our game. Bullets sliding around in the case can lead to unpleasant outcomes. I have some that I backed off the crimp a tad like this one Better?? Edited August 30 by Rye Miles #13621 6 Quote Link to comment Share on other sites More sharing options...
Charlie Harley, #14153 Posted August 30 Share Posted August 30 3 minutes ago, Rye Miles #13621 said: I have some y that I backed off the crimp a tad like this one This is what I call a perfect crimp. 4 4 Quote Link to comment Share on other sites More sharing options...
Cypress Sun Posted August 30 Share Posted August 30 4 minutes ago, Charlie Harley, #14153 said: This is what I call a perfect crimp. This all the way! Nice crimp! 4 1 Quote Link to comment Share on other sites More sharing options...
Gateway Kid SASS# 70038 Life Posted August 30 Share Posted August 30 The second is what mine look like and they work just fine. Regards Gateway Kid 2 1 Quote Link to comment Share on other sites More sharing options...
Colorado Coffinmaker Posted August 30 Share Posted August 30 Hey Rye, Second to the guys that liked your second sample example. Your seconds is just the Beez Kneez. Keep up the good work, er Crimp 2 1 Quote Link to comment Share on other sites More sharing options...
Pat Riot Posted August 30 Share Posted August 30 I third the second. #1 looks like a Lee Factory Crimp set too far down. If I can find it, I have a .357 Magnum cartridge I over did with a Factory Crimp. It looks weird. Especially since I used my .38 Special die, not the .357 die. I have 3 sets of Lee Dies for .38 Spl. One for .357 Magnum, one for regular .38 Spl loads and one for .38 Wadcutter loads. I also have 3 factory crimp dies. Somehow I grabbed the wrong one. 2 Quote Link to comment Share on other sites More sharing options...
Pat Riot Posted August 30 Share Posted August 30 Found It! 6 Quote Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted August 30 Share Posted August 30 Excessive What die are you using? You don't want the step down 'wall'. Quote Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted August 30 Share Posted August 30 5 hours ago, Rye Miles #13621 said: I have some that I backed off the crimp a tad like this one Better?? GTG! 1 Quote Link to comment Share on other sites More sharing options...
Pat Riot Posted August 30 Share Posted August 30 1 hour ago, The Original Lumpy Gritz said: Excessive What die are you using? You don't want the step down 'wall'. Read the post above the picture. 1 1 Quote Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted August 31 Share Posted August 31 2 hours ago, Pat Riot said: Read the post above the picture. What's the fun in that? 3 Quote Link to comment Share on other sites More sharing options...
Widder, SASS #59054 Posted August 31 Share Posted August 31 Howdy RYE. Here is how you establish 'The Perfect Crimp' in relation to your ammo power. Actually, you can have various 'perfect crimps', so I better explain. If your ammo is lightly powered, the crimp don't have to be so much. Measure the OAL and put 6 rounds of your crimped ammo in your revolver and shoot only 5. Pull the 6th round out and measure the OAL for any movement. If recoil doesn't effect the OAL, then your crimp is sufficient.. Actually, I usually shoot 10 rounds, pull the unfired round and measure. If recoil hasn't effected the OAL after being in the cylinder for 10 fired rounds, I'm confident my ammo is crimped correctly. If you shoot HOT stuff, your crimp will need to be adjusted and do the same test. Pull the unfired round from the cylinder and measure its OAL. Your crimp 'tightness' should be sufficient that recoil does not allow the bullet to move out of the crimp groove. The crimp in your 1st picture is the kind of crimp you might want on .44 mag or .454 Casull ammo. The crimp in your 2nd picture is more conducive to Cowboy power type ammo, which is a nice looking crimp. As others have stated, over crimping can fatigue the mouth of the brass and cause premature splitting. ..........Widder 3 Quote Link to comment Share on other sites More sharing options...
Rye Miles #13621 Posted August 31 Author Share Posted August 31 6 minutes ago, Widder, SASS #59054 said: Howdy RYE. Here is how you establish 'The Perfect Crimp' in relation to your ammo power. Actually, you can have various 'perfect crimps', so I better explain. If your ammo is lightly powered, the crimp don't have to be so much. Measure the OAL and put 6 rounds of your crimped ammo in your revolver and shoot only 5. Pull the 6th round out and measure the OAL for any movement. If recoil doesn't effect the OAL, then your crimp is sufficient.. Actually, I usually shoot 10 rounds, pull the unfired round and measure. If recoil hasn't effected the OAL after being in the cylinder for 10 fired rounds, I'm confident my ammo is crimped correctly. If you shoot HOT stuff, your crimp will need to be adjusted and do the same test. Pull the unfired round from the cylinder and measure its OAL. Your crimp 'tightness' should be sufficient that recoil does not allow the bullet to move out of the crimp groove. The crimp in your 1st picture is the kind of crimp you might want on .44 mag or .454 Casull ammo. The crimp in your 2nd picture is more conducive to Cowboy power type ammo, which is a nice looking crimp. As others have stated, over crimping can fatigue the mouth of the brass and cause premature splitting. ..........Widder Good advice, I’ll be shooting these from a 73 with. 24” barrel. I normally shoot .38’s but I got my old 73 back and it’s sweet. It’s the only .45colt I have. 3 Quote Link to comment Share on other sites More sharing options...
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