Highland or PriviPartisan (same stuff) runs nicely through my R15.
Hornady steel training ammo is good - but supply has almost dried right up, and Hornady aren't making anymore in the forseeable future yet.
Used these 2 brands mainly and are good on goats, wallaby's, bunnies and fallow deer.
I've been warned off using the Barnaul ammo as well.
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