Hi, Instead of starting a new thread,I thought I would piggy back onto this one. I have a Weatherby Accumark in 7mm STW. I am trying to find a load that it likes, but I don't know the twist rate. Any ideas?
The barrel is 26" stainless, fluted...I think its a Krieger Criterion.
Thanks
It is eithera 1 in 9-1/2" or 1 in 10" twist.I believe that it is actually 1 in 10" but it really makes little difference which it is as far as loads are concerned.My own two 7mm stws have a 1 in 10" twist and they prefer 140gr loadsusing imr 7828,or h-1000.With 160gr bullets r-25 provides a little more velocity. As for the barrel,the criterion barrel is a button rifled barrel manufactured by a company owned by kreiger,it is not thewell knownkreiger cut rifled barrel.