beartooth91
Member
- Joined
- May 24, 2010
- Messages
- 9
I'm in the process of working up another load for my new, frustrating .243 (or maybe its the frustrating Sierra 70 HPBT Matchking) and used up all my new brass. I was 3 cases short, so, I decided to try partial length sizing a few of my once-fired cases.
I'm using Hornady dies and the sizer was adjusted so the bottom of the die contacted the shell holder at its max height (just before camming over). This is how the Hornady instructions specify (no additional turns afterwards like my old RCBS).
So, I backed the die off a full turn and started working my in 1/16th of a turn at a time, checking chambering after each adjustment. What I found was "resistive-chambering" (if that makes sense) until the die contacted the shell holder, then normal chambering with no resistance. With the die backed off, the chambering required a little force, but, I wouldn't call it difficult - just a little resistance. And, I can chamber an un-resized fired round with roughly the same resistance or just a bit more.
So A) I'm not sure how to adjust the die with the above results, B) how much chambering resistance is ok, and C) can a .243 be partial length resized? I seem to recall an old Speer manual saying the .243 can only be full length of neck sized.
Thanks,
Mark
I'm using Hornady dies and the sizer was adjusted so the bottom of the die contacted the shell holder at its max height (just before camming over). This is how the Hornady instructions specify (no additional turns afterwards like my old RCBS).
So, I backed the die off a full turn and started working my in 1/16th of a turn at a time, checking chambering after each adjustment. What I found was "resistive-chambering" (if that makes sense) until the die contacted the shell holder, then normal chambering with no resistance. With the die backed off, the chambering required a little force, but, I wouldn't call it difficult - just a little resistance. And, I can chamber an un-resized fired round with roughly the same resistance or just a bit more.
So A) I'm not sure how to adjust the die with the above results, B) how much chambering resistance is ok, and C) can a .243 be partial length resized? I seem to recall an old Speer manual saying the .243 can only be full length of neck sized.
Thanks,
Mark