Hi all,
I have been working on getting a good OAL using 115gr Laser cast RN in a G19 and KKM match barrel. As I have seen in a couple other postings, the OAL has to be quite short, in my opinion, to seat the case and clear the rifleing.
My best OAL is 1.0885 and seems that the bullet is seated about .21". It seats just at the end of the shoulder of the bullet, just before the taper begins. I also understand that as a bullet is seated further, causing a shorter OAL, the case pressures grow.
My initial load is going to be 4.0 gr of 231 and I am going on the following data:
115 GR. LRN, Winchester 231 Max OAL:1.100" Load Min: 4.3 FPS: 1079 28,400 CUP Load Max:4.8 1135 FPS 32,000 CUP ,
but with the short OAL (although it is only .0115 under MAX OAL) I am not willing to move forward without a little advice.
I guess the major question is, is this OAL too short and can it become dangerous? I do have a chrono for final testing, but don't want to tempt fate right off the bat!
thanks in advance for any thoughts or assistance.
Mark