Ran some .22's

[Gussy]

Well kurt, doesn't seam as though a semi auto is any different in velocity than a bolt gun. Actually the semi auto was faster by a very small margin in 3 out of 4 trials. Very small sample however.

My 16" barrel turned out have grown and is now 18". I ran 4 brands/types. Fed hi Vel, Rem hi Vel, Aguila match and CCI std vel. Used them in a standard Ruger 10-22 with an 18" barrel. A custom 10-22 with a 20" barrel. A Ruger precision bolt gun with a 20" barrel. A Winchester low wall with a 24" barrel.

Too small of a sample to be positive (cold out, windy and also cold...).

Federal Hi Vel was the fastest and did actually slow down as the barrel got longer.

Remington Hi Vel got faster as the barrel lengthened, about the same at 20-24".

Aguila....pretty wild velocity variation. Did get slower as the barrel got longer. fastest at 18"

CCI Std Vel didn't seem to care about anything. Tightest velocity spread and almost the same velocity in all 4 guns, less than 6 FPS ave spread between them. It is also the one that shoots best in the 2 Rugers with target barrels.