Handgun Primer Variation?
Over the years I have primarily used Remington and Winchester primers. When the primer shortage of 2008-2009 hit, I got to using CCI's, as they were more available here. They seem to really seat well, and generally seemed to be very good quality primers. I have heard before, that the CCI primers have too much variability for some.
Now to the question. Over the last year, I have been getting more and more discouraged about handgun shooting. I haven't been able to make those nice tight patterns like I used to, and was about to the point of quiting the hobby. I should disclose that I'm not a new shooter, I've been shooting for a long time, and I used to be able to do quite well. Keep in mind, I was so discouraged that I started shooting from a sandbag rest, with the same horrible results.
Over the last month, I have been using Winchester primers again, and I'm getting much better groups. Off-hand groups that are probably 1/3rd the size of previous rested groups--all with the same loads, except the primers.
Probably just me practicing a little more, but I still wonder if it might be the primers. I can see primer variability being an issue with rifle ammuntion, but handgun? I just can't see that it would be that big of a deal. I'm using cast bullets after all.
Does anyone else have any wisdom to pass on about primers in handguns? Anything that you have learned over the years?