Hope your knee heals quick Cayugad. I'm sure it will, very common surgery anymore....I'm sure you wont have any troubles chasin whitetails in Wis this fall. As far as bullets changes instead of a new gun purchase. I'm debating whether or not to switch from Hornady Mag 300 gr or try something else....I've used them since 1995 and love the way they perform...But on the other hand, I like to try new things.....But I still love shooting the ole roundball out of my Lymans Great Plains rifle.