JFrank
Member
YepI agree that there are several things that can cause vertical stringing and I may not have conveyed the guy's thought correctly, but I think what he was saying is that if one was unsure of wind conditions or not able to read the wind precisely, the group that exhibits the minimum vertical deviation is likely indicative of having found a good load combination. This, of course, assumes one has done their best to resolve all the other things that could cause a rifle to vertically string shots. As Varminterror noted, and I agree, vertical stringing is indicative of NOT being in a barrel node and that the powder charge needs to be increased or decreased to find that node and thus produce minimal vertical deviation in shot placement.
I have seen vertical from simply over filling my front bag, I have seen vertical from not managing recoil properly, i have seen vertical from the sun hitting my target at the most inopportune time. Lol.
The list is long