Sorry folks was on a self guided sheep hunt up here. Man what an experience, but out of forum contact. The Lathe I use is a Taig mini-Lathe, sold up here by Lee Valley and used mostly by mini model makers. I just took the 235 Speers down to 225 grains and will retest..the bullet on media. They might open up mpre if more lead is exposed but the javket is thick. I was thinking on the trip that the 375 with the modified 235 Speers would b a dandy grizzly defense gun. The Speers would penetrate well and 6 in the magazine in a very handy and light package. My 300 grn Cast mold came from australia. I guess I need to qcuire all the rest of the stuff for casting now. Found some 200 Sierras and will test these when they arrive as well.