TargetTalk

1. I have found impact point differences between lots up to 1.5in. That is, with no sight corrections, just changing from one lot to another, the centers of the two groups were 1.5in off at 50 yards. As for group size, I have seen everything from no shots touching to one shot holes with all other variables besides ammo being constant.

2. There shouldn't be much difference between testing Eley and testing Lapua. You're still looking for the same thing, which shoots better. In my experience, Eley lots have fliers and Lapua lots have low shots with the consistency of those shots being the same with both brands. Also, both have the lot number printed on the box. When I buy 100 shots of a dozen different lots to test, I have the store I buy them from hold on to the amount I'm looking to buy (usually 10000-15000 rounds). The understandably will only hold it for 7-10 days. After I test, I order what I like, and get a bunch of it so I don't have to bother for a long time.

If you're asking about comparing Lapua to Eley, I have had great success with Lapua for a long time. I've been shooting Lapua Master for 7-8 years, and I shot Lapua Multi-Match before that, which was Master's predecessor. Master was considered inferior to Lapua Midas, but Master always shot better in my gun. I have broken a number of NRA National Records with Lapua and regularly place well at Perry for prone and 3P (as high as 11th in prone). So Lapua gets my stamp of approval.

Likewise I have been shooting Lapua with fantastic results. I was using Eley match eps but am now using Lapua center X. Also I haven't had one miss fire with Lapua but used to have quite a few with Eley.