I hunted some with a Glock 20. Jill?s a deer and a few pigs. I used the 180 xtp loafed about 1200 FPS. Underwood ammo actually shot a little faster in my gun than advertised. I tried to match their loads and came pretty close with 800x but primers were showing pressure signs and accuracy wasn?t good. Their loads shot well in my gun. I think my favorite thing about the 10mm was practicing was so much fun compared to big bores. Considering a Glock 40 and to get back in the 10mm game. I will say everything I shot with mine died quickly but nothing had an exit wound.