Photo From: Dale Mullin
Description: These two groups were shot using the same rifle and scope, by the same shooter, on the same day. The dramatic difference in group sizes appears to be the result of primer selection.
It is interesting that in a different rifle, of a different chambering the results were quite different, with the Winchester primers actually providing better groups than this particular lot of Federal Match primers.
This goes to show that it can be important to test different components if your initial results are not what you expect.
by Dale Mullin