KBintheSLC
Member
I recently chrono'd some DT 10mm in my Glock 20 and the results were a bit concerning. I was getting average velocities in the low 1100's for their 200g @ 1250 fps loads. I also tested some 165g JHP that is claimed to run at 1425 fps... it came up in the low 1300's.
I thought that I might be having bad readings, so I tried some .223 and .22LR. The .223 Silver Bear 62g JSP did 2915 FPS from a Mini 14 which seems pretty close to what it should be. I ran some Winchester 36g "555" high velocity through my Sig 226 .22 conversion at about 1040 fps, which also seems about right coming out of a pistol. I also ran a few 175g factory 10mm Silver Tip's which came out of the G20 in the lower 1200's.
Could it be true that the DT 10mm loads are this far below the advertised velocities? Has anyone else chrono'd these in a G20?
PS... I was using a Shooting F1 Chrony and a stock 4.6" barrel.
I thought that I might be having bad readings, so I tried some .223 and .22LR. The .223 Silver Bear 62g JSP did 2915 FPS from a Mini 14 which seems pretty close to what it should be. I ran some Winchester 36g "555" high velocity through my Sig 226 .22 conversion at about 1040 fps, which also seems about right coming out of a pistol. I also ran a few 175g factory 10mm Silver Tip's which came out of the G20 in the lower 1200's.
Could it be true that the DT 10mm loads are this far below the advertised velocities? Has anyone else chrono'd these in a G20?
PS... I was using a Shooting F1 Chrony and a stock 4.6" barrel.