Bullet seating and crimp grooves


PDA






Hotshot10
March 17, 2012, 05:17 PM
I'm relatively new to reloading, and I ordered some 158-grain, plated .38 specials from Rocky Mountain Reloading. These bullets have a crimp groove in them.

When I seated them, I used the same OAL as I did with my Rainier bullets. About 1/4 of the crimp groove is covered by the brass, while the other 3/4 of the groove is above the case mouth.

I have two questions:

1. Should I have seated them deeper?

2. Are the ones I loaded okay to shoot or do I have to pull them and redo them?

If you enjoyed reading about "Bullet seating and crimp grooves" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
helotaxi
March 17, 2012, 05:35 PM
Unless the bullet is the same dimensions, seating to the same OAL is nothing more than a WAG. I would seat to either the middle of the cannelure or to the point where almost all of it is in the case mouth and apply a very light crimp. Being that its a different bullet you'll ideally want to rework your loads.

Walkalong
March 17, 2012, 08:11 PM
Seat the bullets so the crimp rolls the case mouth fully into the crimp crimp. That is the correct OAL for that brass length and bullet.

.38 Caliber
http://www.thehighroad.org/attachment.php?attachmentid=104460&stc=1&d=1251676348
http://www.thehighroad.org/attachment.php?attachmentid=104461&stc=1&d=1251676353

.44 Caliber
http://www.thehighroad.org/attachment.php?attachmentid=104541&stc=1&d=1251758452
http://www.thehighroad.org/attachment.php?attachmentid=104542&stc=1&d=1251758458

If you enjoyed reading about "Bullet seating and crimp grooves" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!