AJC1
Member
I always seem to find the flaw in every process. Loaded 50 of my 357 180 sil bullets and I have bulges. Because my bulges are all the way around and equal, I'm going to assume my sizing die is taking the brass down to far. The other solution would be to have a larger mandrel as the one I have if driven deeper will bell like crazy. I am also curious if this has anything to do with being gas checked as it's the only bullet I have loaded with one. I dont believe I have a fit issue but I will plunk and guage them when I pick up my guns. Are the rcbs cowboy dies different????
reminds me a lot of some wasp waisted 9mm I have loaded.