I just bought a stack of secondhand 4570 brass that I intend using in my 1895. I normally shoot a soft 405 grain cast Bullet .....I noticed after measuring that there is dozens of 4590 Brass in the bag. It’s all stamped 4570 govt RP ......can I just trim the longer cases down and use them in my 1895 marlin? Or am I better off just selling them to a 4590 enthusiast? .......nb....there is no hornady Flex tip short cases in the batch it’s all proper 4570 length Or proper 4590 length .......I was going to set up a jig to dock them with a thin mini disc in a grinder and then use proper case trimming equipment to deal with the last mm accurately, and properly