Home Forums Hunting & Shooting Handguns 10 mm Underwood Hard Cast Flat Nose

I run a 22# spring in my Glock 20. Shell casings dont fly as far and repeat shots are faster.

It's still 100 reliable using Underwood 200 gr hard cast, Underwood 180 gr Gold Dots, and my handloads using 180 Delta Precision hollow points, 200 grain XTP and Gold Dots, and 200 gr Montana Bullet Works hard cast. I recently loaded up some 180 Swift A Frames which so far have shot well.

I did go with a 6 inch KKM stainless barrel, which gives additional velocity over the stock barrel. Depending on the load, I get between 75 fps and 125 additional fps with the same exact load, just by changing barrels. My 180 loads are around 1300 and the 200's are around 1200 fps, using book loads. The longer barrel helps.