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Old 04-21-2013, 1:34 PM
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ExtremeX ExtremeX is offline
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Originally Posted by GeoffLinder View Post
I never really crimp. Neck tension interference fit is all that is really needed. For my more expensive long distance AR loading (Sierra SMK 69 and 77gr) I do keep a Dillon taper crimp die in the last station and set it so it just kisses the edge of the case mouth, no actual turn in of the case mouth is ever done. This last bit of taper touch is ONLY done when I am using same batch cases that have been uniformly trimmed, otherwise crimp in any manner is a waste of time when case length and case wall thickness varies. For mixed headstamp 55gr AR fodder where you are not trimming the cases first no crimp at all is best IMHO.

A FCD is a horrid thing to do to a nice bullet. You are squishing the bullet and that's never a good thing to do!
I just got finished making some dummy loads for my next batch... I also removed the crimp die from the die plate for this next run just to see how it does. I admit I've been crimping since day one so it was a little hard to break the habit.

For the 55gr Hornady FMJBT:

I got one seated at 2.235" and the other at 2.255"

I'm thinking of just doing the new ladder with 2.255"...
Cannlure exposed + little bullet exposed.
Plenty of body still in case neck.
Fits in Mag
Feeds Fine

Any thoughts or objections?
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