220 swift 62gr ELD-VT

Yeah, it takes a lot of velocity to make up for 1" of twist. Need 400 FPS more to make up the difference between an 8 and 9. Need 2,300 FPS to get there with a 14.

8T @ 3,000FPS = 270,000 RPM
9T @ 3,400FPS = 272,000 RPM
14T @ 5,300FPS = 272,000 RPM

- DAA
 
DAA said:
Yeah, it takes a lot of velocity to make up for 1" of twist. Need 400 FPS more to make up the difference between an 8 and 9. Need 2,300 FPS to get there with a 14.

8T @ 3,000FPS = 270,000 RPM
9T @ 3,400FPS = 272,000 RPM
14T @ 5,300FPS = 272,000 RPM

- DAA
Click to expand...
Glad to see that someone gets the RPM thing. You can get away with a little slower twist if you have the horsepower to do it. They shoot great in my 9 twist 22 Creedmoor.
 
Back
Top