hey guys,

got a quick question on .30 carbine crimping, so i thought i'd send it over to you guys!

using a dillon 550b with 3-stage RCBS carbide dies, i'm currently guessing at how much crimp i should apply. also, after the cases go through the first 3 stages (including full-length sizing), when the crimp is applied, the case kind of "bulges" around the bullet slightly. Is this "bulging" normal for .30 carbine?

OAL is at 1.680", and case OAL is between 1.280" and 1.285". both cases in pictures 001 and 002 are bulging, but the right casing in both pictures bulges more than the left (the right casing having more crimp applied then the left casing).

Also: depending on how much crimp I apply depends on if there's a gap between the bullet and the mouth of the case. not sure which one is correct amount of crimp.

in pictures 003 and 004, the "gap" case is on the left, and the "no-gap" is on the right. in my first 100rnds ever loaded, i believed they looked like the left-side "gap" case (with no signs of overpressure on the fired cases). the gap is approximately 0.001", and the bullet is firmly seated.

components are Sierra 110gr FMJ bullets, sitting on 1 S&B and 1 Aguila casing.

any suggestions on how to proceed?

http://i240.photobucket.com/albums/f...30carb_001.jpg
http://i240.photobucket.com/albums/f...30carb_002.jpg
http://i240.photobucket.com/albums/f...30carb_003.jpg
http://i240.photobucket.com/albums/f...30carb_004.jpg

Thanks!
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