Own 8.
5- 91/59's, 2- 91/30's and 1-M91. I love these old rifles and as you can tell my favorites are the 91/59's. I use only surplus ammo and have found corrosive ammo to be no problem. shoot a little Windex w/ammonia down the bore and on the bolt head to neutralize the corrosive salts , then clean as usual.