16.5" 6.5prc velocity?

[DynamicAccuracy]

Considering having a 16.5" 6.5prc spun up but curious what velocities others with shorter barrels are getting. My 24" runs 3050 with 140s with h1000. So I figure a 16.5 should, in theory, be able to push a 140 about 2850-2900 with h1000. Im also not sure if I could run a faster powder like h4831/sc and pickup some speed.

 

[straightshooter1]

Considering having a 16.5" 6.5prc spun up but curious what velocities others with shorter barrels are getting. My 24" runs 3050 with 140s with h1000. So I figure a 16.5 should, in theory, be able to push a 140 about 2850-2900 with h1000. Im also not sure if I could run a faster powder like h4831/sc and pickup some speed.

Using what data you show above in my QuickLoad app, your velocity for a 16.5" barrel will drop to around 2750 fps. So, I don't see any way to get anywhere near 2850 fps from of a 16.5" barrel with H1000. With H4831, you'd be way over pressure to get 2858 fps out of 16.5".

 

[MOUNTIC]

18 inch barrel here with 156s and RL26. 2750 is all I get with consistent SD and ES. That's at 54.9gr in ADG brass. Any more powder my SD/ES go to complete garbage. No idea on the 140s but its a data point with the 156s and 18 inch barrel.

 

[ktm131rob]

Considering having a 16.5" 6.5prc spun up but curious what velocities others with shorter barrels are getting. My 24" runs 3050 with 140s with h1000. So I figure a 16.5 should, in theory, be able to push a 140 about 2850-2900 with h1000. Im also not sure if I could run a faster powder like h4831/sc and pickup some speed.

I built the rifle you described in your post. Did you ever have build it and Have any luck with a load?

Thanks,

 

[DynamicAccuracy]

I built the rifle you described in your post. Did you ever have build it and Have any luck with a load?

Thanks,

Did you ever find a load for yours?