So I have been learning about C.O.A.L., off the land measurements, etc. I do not have a stoneypoint gauge (yet) so I made up a dummy round using resized trimmed once fired brass that chambers easily. I reamed out the neck a little so a bullet will fit snugly but still be able to slide. I drilled and tapped the primer pocket so I can screw a bolt up the case and push the bullet out. I chambered this dummy round thus pushing the bullet into the case theoretically giving me my "jam length" for my Kimber 325 with 220gr gk's.
Now, after doing this a few times with different bullets (all 220gr gk's) I have come up with the OAL of this jammed round to be 2.860 - 2.863 depending on the lead bullet tip. In fact the first couple times it was 2.872. I think it may have jammed to tight and then slightly pulled the bullet out of the case durring extraction. After several more jammings I never got that long of a measurement. Anyway, the SAAMI OAL is 2.860, the magazine in the Kimber will take longer.
Before all this I tried the smoking the bullet thing and can't seem to determine anything very accurate as far as OAL. In fact if I seat the bullet to where I get no rifling marks the OAL is like 2.810. Much less than the min OAL's the recipes dictate. The factory loaded 200gr accubonds are 2.821 OAL.
The load recipes I have show a min OAL of either 2.845 or 2.850. If my dummy jam round is 2.860 what OAL should I set my die to seat the bullet at? 2.845 or 2.850... 2.855?
Until I can get up to see Murphy for a lesson I figured I'd post this.