Hello there im attempting to use accurite 1680 powder and a a hundred grain bullet in .257 diameter but I dont know just how much powder can be right do you've any suggestions. I do know you haven’t chatted in decades so if anyone has recommendations make sure you post https://transtechfirearms.com/product/remington-core-lokt-ammunition-25-20-wcf-86-grain-soft-point-box-of-50/