Horizontal stringing

Klemm

Online Training Member
Full Member
Minuteman
Feb 23, 2013
393
94
Trying to find a load for my 300 WinMag. It is a custom gun, Krieger Barrel, blueprinted action etc. I am shooting berger 230 hybrids. Shooting off of biPod and tab rear bag. I sometimes get some horizontal stringing when testing my loads.Which I think is me.Other times when testing, the groups form perfect triangle’s which I assume means I did everything right. But I need to adjust the load. Any suggestions.
 
I've been testing loads assuming vertical strings are powder/charge related and horizontal are related to OAL/stability...before I started using a monopod it was obvious the vertical strings were me...I could be way off but maybe someone has a more effective strategy...