My SIL has Ruger LC9 for a carry gun. I had a bunch of 550 primers I gave him, but can't find any loads with this primer. He wants to use 700X, any advise welcomed. Luckus
Jetpig
02-13-2012, 10:46 AM
I use 550's in 9mm all the time. You will not experience any ill side effects. As always, don't start maxxed out on your loads. Work up.