CWLONGSHOT
Well-Known Member
Why again do you feel the need for that diameter bullet??The reason for concern in this instance is that I am trying to develop a maximum accurate load in 375 Magnum for my Win 92.
I want a powder coated bullet of .3575” max. My pc’d bullets are .359“-.360”. This would be fine for most of my shooting, plinking etc at low pressure. But I don’t want the pressure buildup that would be caused by the resizing of the bullet at the throat, so I would like the bullet to be groove diameter or half a thousandth larger, only for these max loads.
I do not want bullets of less than groove diameter because I think this could cause leading and accuracy problems. My .357 Lee sizer is sizing .356”. I am attempting to enlarge it with sandpaper on a hardwood dowel.
Jeff H, I understand your concern for a tapered hole. Are you using abrasive paste directly on the metal rod? How do you get a rod of the proper diameter?
Do you know or are you assuming a issue with a larger bullet?
I have shot and prefer to hoot, fat cast bullets for many decades and never seen issue with choosing it.
Cast are not jacketed and do not see the pressure spikes when larger or seated into rifling.
Ian and I have gone round with these .001 pc thickness numbts before. I don't believe it. Thats .0005 per side!!! MAYBE ya might see some areas @ .00175/.002 but .003 + is more likely. What & how we do PC simply is not that precise! But that is neither here nor there the PC is what it is and nice thin PC hasn't been a issue. Thick gloppy applications are a different story.
CW