Ammo Testing Process?

[Montana]

Since we aren’t going to be sending my daughter’s rifle off to be ammo tested at one of the special facilities, what is the process?

Please give it to me as detailed as possible, I’ve never done this before.

[Tim S]

It's clamped down into a vice, at the action. Eley use a "slave" stock for Anschutz 54s in the UK, the US range may differ. However I think their vice, and Lapua's, lets the barrel free-float.

The rifle is roughly bore-sighted with the electronic targets, then ten shot groups are fired from all the batches available at the time. Eley let you test Tenex or Edge. I believe Lapua let you test Centre-X, Midas, and X-Act. If you currently have ammo for the rifle, that goes first as a control. After firing the initial groups, the most promising are picked for further testing. For Eley, you fire four groups for Tenex, and three for Edge.

The range computer automatically centres each group over the chosen target, and will calculate edge-to-edge group sizes. Eley's software also superimposes all the groups for a batch, for a 30 or 40 shot group, and calculates the expected decimal score. The latter is useful for comparing the density of groups when size is similar.

[Piefou]

They also do this test after each batch produced, and the results are posted here (at least for Tenex) :
http://www.myeley.com/lot-analyser

For example :
http://www.myeley.com/lot-analyser/3042/result/metric