compairason of 300 mags

[gary brezinski]

sir,
given a 30 inch barrel how much difference is there between the 300 ultra and the 300 tomahawk using 200 and 220 grain mk bullets.
gary b.

 

[Darryl Cassel]

I would say 100 to 150 feet per second given everything is equal such as barrel length?

Darryl