6.5 PRC velocity and barrel length?

[Weldor]

Wow Good velocities for short barrels. I have a 22 in bbl suppressed and only get 2665 average 10 shots. The rifle is new to me, ammo was Norma golden target 143 gr 6.5 prc. I have'nt had time to load anything up for it. I was a little disappointed with the low numbers. Of course Norma says 2986 out of a 26 in. bbl. with 4 inch difference thats a big drop in velocity.

 

[steffen707]

Wow Good velocities for short barrels. I have a 22 in bbl suppressed and only get 2665 average 10 shots. The rifle is new to me, ammo was Norma golden target 143 gr 6.5 prc. I have'nt had time to load anything up for it. I was a little disappointed with the low numbers. Of course Norma says 2986 out of a 26 in. bbl. with 4 inch difference thats a big drop in velocity.

300fps for 4"? dang.

 

[Weldor]

Yea. The high was 2710 low was 2599. I am hopeing it is just the ammo.

 

[Sadler]

I’m 2650 with a 16” barrel and 2750 with an 18” barrel. Both shooting UM Mayhem ammo with 156 Bergers

 

[Weldor]

Just ran 20 rounds down a fierce Roque CT 20" bbl. disappointing velocities 2743 was high 2534 low. The string was shot during break in. let bbl. cool cleaned etc. Norma 143 factory. Golden Target. Going to work up some 140's and see what happens. Cold bore shots seemed to be the worst ave 2583-99 . All shot through a Pro chornograh.

 

[Samson7x]

I'm getting 3000 with a 20" proof barrel and handloaded 140vld.