I'm concerned that my barrel is too long for subsonic ammo. This rifle is very very quiet to shoot, and the muzzle velocity seem to calculate out to about 50-150fps below the ammo's claimed speeds (based on measured bullet drop and guessing speeds in a ballistic calculator until find a speed which gives matching drops).
Am I completely off the reservation here? Has anyone else noticed similar effects with 22" Savage rimfire barrels?
"The truth is that all men having power ought to be mistrusted." - James Madison
You will discover 2 things here. 1- That barrels have their own personalities and some are more accurate that others and some are faster or slower than others. 2- Ammo companies often inflate their velocities, and in the case of subsonics sometimes lower the velocities a bit extra to be sure they stay low in longer barreled guns vs shorter barreled ones. Just some observations.
204, 22 K-Hornet, 222, 223, 22-250, 22-250AI, 6BR, 243, 243AI, 6-06, 6-WSM, 250-3000AI, 270, 7-08, 7RM, 30BR, 308, 30-06, 375 H&H, 444 Marlin, 450BM, 458WM
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