I do have a 10mm
It's a Smith 610. Enough force to disfigure the case would cause a jam don't you think. I do get 1482 with a 3.9 inch sig barrel the 1567 is with a 5 inch barsto for the P229. I have tried the Longshot data with a 180 grains and it was no problem at all. I just think the 12 grains is a little hot for the 135 and it sounds like you all do also. With 11 grains I get 1409 with the 135 still not a slow load and the accuracy is good. It's not up to the 357 sig in accuracy but still it's OK. I have never been one to trash my brass after 3 loadings but with the 40 and 12 grains of Longshot it would be a good idea. I have a 40 3.9 inch Bar-Sto on order in case I get to feeling stupid again and want to shoot 12 grains of Longshot in a Forty with a 135. Someone told me the FC brass is weak and a lot of it is marked FC,
Thanks,Keith
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