Tennessee Snuffy Posted February 16 Share Posted February 16 Folks I have a 45 caliper 535 g postell bullet mold and would like to cast some 500 g postell using the same mold. Is that possible? Can I add some Tin to lighten the weight but then that will also make the bullet harder. Am I correct? Suggestions are certainly appreciated. Thanks a lot Tennessee Snuffy Quote Link to comment Share on other sites More sharing options...
Garrison Joe, SASS #60708 Posted February 17 Share Posted February 17 Well, trade for a mold that is close to 500 grains. You cannot alloy enough to change the weight by more than about 10 grains lighter, and the tin will cost you a bunch! Some mold mechanics are able to mill the thickness of a base-pour mold to cut the mold down to a lighter weight. If you are going to leave it as a plain base bullet, then milling to remove the current base and the lowest grease groove would take quite a bit of weight off. Not a job for a home hobbyist in most cases, as the sprue plate mounting screw hole has to be deepened. And make sure that does not cut into the block's handle mounting slots. good luck, GJ 3 Quote Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted February 17 Share Posted February 17 Get a different mould. 4 Quote Link to comment Share on other sites More sharing options...
Lead Monger Posted February 17 Share Posted February 17 Keep the 535 and buy another mold for your rifle. Quote Link to comment Share on other sites More sharing options...
Warden Callaway Posted February 17 Share Posted February 17 How many do you need? If you just want a few for test, take the heavy bullets and cut some off the base. A lathe would be handy. Maybe drill a hole? Some way to skin a cat. Quote Link to comment Share on other sites More sharing options...
Cholla Posted February 17 Share Posted February 17 If you’re trying to reduce recoil dropping 35 grains isn’t going to do much. Lyman made 400, 340’ and 292 grain .458 molds. I use the 292 in my 1886 lever-action. You could drill the base out as suggested if you have a lathe to keep the hollow base concentric, but in my experience lead likes to gaul and grab the drill. Accurate Molds can make a custom mold to your specs. 2 Quote Link to comment Share on other sites More sharing options...
ORNERY OAF Posted February 17 Share Posted February 17 Sell it here, I'm sure it will sell in a minute, get the one you want.....work smarter not harder 2 Quote Link to comment Share on other sites More sharing options...
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