Re: vertical stringing groups
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>I am getting very tight groups but the have some vertical dispersion <HR></BLOCKQUOTE>
I guess the first question would be, how much vertical your getting and at what distance? My immediate answer would be the same 338-378's, but it could also be shooter error with bench technique, breathing etc.
As Brent said also it could be a million things but you only gave a little information to go on.
Learn from others mistakes, you won't live long enough to make them all yourself