Why do you want another .22 in Stg44 version? You already have this one. I would go for 9mm carbine or some .223 on the next one if I were you.
For plinking, a Ruger 10/22 should be the best. Cheap, accurate, and accessories are readily available.
Save up a bigger chunk of money and go for a better rifle instead of buying similar items. Unless you're a dedicated collector of .22 variants.
Got the real 7.62x54r ammo yet? You don't get the Mosin's real power with training rounds.
