I have been having trouble with my fireform loads, The necks are splitting. I have three other A.I. rifles and have not had any trouble with this before ...but they are larger calibers. I am using new brass with 20gr. of IMR 4320 behind a Hornady 20gr.bulletI have pulled some bullets and deprimed and have annealed the neck and shoulder area but don't have them dried out and reloaded yet. Has anyone else run across this before?, Any other suggestions? Thanks

anneal em before reloading?

jeffe

I Don't know if this will work or not but I thought if it makes the neck and shoulder softer it may form the improved case without splitting.Any other ideas?