Originally Posted by Briancrn113
Okay I understand some barrels are faster and/or slower than others all other factors being equal. I have recently been wondering if the method of rifling can affect speed/friction of the projectile. When we compare hammer forged rifling to say button rifling it looks much rougher as if there would be more friction and thus produce a slower moving projectile. Button rifling in contrast looks to me anyway much smoother, hence less friction. Is this true or doesn't it make any difference?
I've always wondered the same thing!
But, I would like to throw in my own spin!
What about the number of grooves/lands?
My Kimber in 300WinMag has 4 grooves/lands, my 300Weatherby has 6 grooves/lands and, the 300WinMag practically equals the 300Weatherby with equal barrel lengths and pressure, both are 26".
My F-Class rifle in 300WinMag has 3 grooves/lands and, it shoots faster than it should than either of the other 2.