Is this too much crimp

[kriller134]

This is my first time loading lead. Is this too much crimp?

[ironhorse1]

Besides being a bullet what caliber are you loading? That might be ok for a .45 Colt or .44 magnum. If it is a 9mm or .45 ACP then yes it is way too much as they require only a taper crimp.

irh

[kriller134]

Besides being a bullet what caliber are you loading. That might be ok for a .45 Colt or .44 magnum. If it is a 9mm or .45 ACP then yes it is way too much as they require only a taper crimp.



irh

['ol shooter]

Buy a chamber gauge or use your barrel, removed from the gun. Set the crimp just enough to take the belling off the case mouth. Round should drop freely into a case gauge. If using your barrel as a gauge, do not share with other shooters, they could be tight on their guns. Bear in mind that brass has spring back and lead does not. Over-crimping causes low bullet to case tension, which can and does allow the bullet to push back into the case on feeding, creating an undesirable and possibly hazardous situation. There should be no crimp line.

[TexasJackKin]

That might be OK for a revolver, but too much for an automatic. And like 'Ol Shooter said, over crimping can actually make the bullet looser in the case, by swelling the case below the crimp, and the spring back at the crimp, coupled with no spring back of the bullet...

[kriller134]

[wbunning]

With a properly applied taper crimp on a 9mm round, you should not see a ring like that. Just enough to remove the flare, and enough so that if you push the nose of a loaded cart against the edge of the bench really hard, the OAL doesnt't change.

[Cheep]

You normally wouldn't get bullet set back in a 9mm unless your gun jammed and even then it may not happen.

[furrly]

I usually crimp between. 378-.379..
Works perfect on my 9mm loads.. But always do the plunk test with the barrel you are going to be using..
Good luck

[J-cat]

With auto pistol rounds you should apply a crimp where the case mouth digs in a little yet still protrudes out to stop against the end of the chamber. The problem is pistol brass length varies and your die setting may apply too much crimp on some and not enough on others. A better solution is to skip the crimp altogether and just straighten out the case mouth from belling and just rely on case tension. This is easy to accomplish because you should be using an oversized bullet anyway. Use a bullet diameter that fits snug in the freebore so you don't get leading. I use .358" bullets in my 9 as it has a .359" freebore.

[rdtompki]

I've pulled thousands of coated lead, 115 and 124 grain. I've never seen a crimp line and don't expect to see one. I've reloaded all but a handful of these bullets. Taper only and I'm usually in the .379" vicinity.

[9mmepiphany]

The bullet isn't held in place by the crimp, so much as it is by the neck tension.

As already posted, the problem is that different cases will have different lengths and thicknesses. You have to find a happy medium between your longest case and your shortest, your thickest and your thinnest...or you could only load one headstamp at a time

[DueceMcGurk]

I load that same bullet at 0.378 crimp.

[kriller134]

I load that same bullet at 0.378 crimp.

Thanks any recipes you wanna share?

[TexasJackKin]

The bullet isn't held in place by the crimp, so much as it is by the neck tension.

As already posted, the problem is that different cases will have different lengths and thicknesses. You have to find a happy medium between your longest case and your shortest, your thickest and your thinnest...or you could only load one headstamp at a time

^^^^^^^^^^^^^^
This!

The only way to get a super constant crimp, is to have all the cases the same length, and nobody wants to trim trim straight walled pistol brass! Find the happy medium and plunk test your match, and HD ammo.