Im working on something and would like some input. I did a forum search and did learn a few things.
Have a big box of cast bullets for Dads .38 special. Want to try them in my 9mm.
No idea who cast them. Plain box with .38/.357 158 grain written on box.
Heres what i have so far.....
My P89 slugged at .356
I usually shoot 147 TMJ with 700X powder, set to 1.115" col.
The cast bullets measure in at .357 to .358
Average weight with lube.... 152.87 grains. Definitely not 158gr as written.
These casts are a bit longer then the TMJ's.......
TMJ .648"
Cast .676"
I made up a dummy and set bullet so base is not taking up any more case capacity then the TMJ. So obviously
the COL is a bit longer at 1.145". They are well below the max COL and the dummy chambers well in the P89.
Im thinking of setting a bit longer because the cast is a flat base, and the TMJ has a bit of a concave base. The concave gives an extra milliliter or two case volume.
I figure on using the 147 starting load, or a bit less to start with.
Is there anything any of you can offer for me to think about before I load them up?
The crimp groove sticks up out of case. shouldnt be a problem. Using good taper crimp.