Put a new CZ457 together with a Brux barrel and MDT chassis. Been going through different ammo to get a feel for what it liked. It seems to really like the Eley Match so I ordered 8 lots. All of them overall shot really good but found one lot that shot exceptionally well with a velocity range I liked with low SD’s.
So I ordered 3000 of said lot and when it comes in I go to shooting it. Shoots really well but here’s the odd part. It’s actually two different lots. The lot I tested and part of the lot I ordered match up perfectly. Average velocity of 1091fps and SD 4-5. The second lot within this lot has an average velocity of 1111fps with an SD of 6. So far I’ve tested 18 boxes and they two lots are about 50/50. You can test a box and the whole box will be one or the other with SD’s being right at what I posted above. I’ve been in the competitive 22 for a long time and I’ve seen a lot of things but never anything like this. Not going to be that big of a deal but will have to go through every box and chrono and mark that box as one or the either.
So I ordered 3000 of said lot and when it comes in I go to shooting it. Shoots really well but here’s the odd part. It’s actually two different lots. The lot I tested and part of the lot I ordered match up perfectly. Average velocity of 1091fps and SD 4-5. The second lot within this lot has an average velocity of 1111fps with an SD of 6. So far I’ve tested 18 boxes and they two lots are about 50/50. You can test a box and the whole box will be one or the other with SD’s being right at what I posted above. I’ve been in the competitive 22 for a long time and I’ve seen a lot of things but never anything like this. Not going to be that big of a deal but will have to go through every box and chrono and mark that box as one or the either.
