Boolits Sizing for 9mm Question
Quote:
Originally Posted by
Pooka
Update: I followed bboque1's suggestion and created a slug out of some pure lead melted into a 9mm case. The slug mic'd out at .3556 and an average of 10 powder coated boolits came it at .36464 which gives us a difference of .00904.
So as these are meant to be cheap training rounds should I call it good enough for government work...or should I add another layer of pc to fatten them up a touch?
No need to go fatter as that’s plenty thick. Really you only want .001-.002 thicker. You’re at .009. Load a dummy round and see if it plunks (which I kind of doubt). If it plunks then it’s probably good to go. If not, get a sizer to .357 or .358 then recheck for plunking and go from there.
If you’re really that thick at .36464 then you should dust off the extra powder before sticking in the oven.