This is not really a Challenge set of targets, but I'll post it anyway since I measured the composite groups.

Went to the range to test a series of powders & bullets.

Each target has 5 Nosler 77 gr CC bullets & 5 Sierra TMK bullets with each powder; Alliant AR-Comp, IMR-8208 & Alliant 2000-MR.

All with CCI 41 primers, WW brass.

The group size reported is the total spread of both (different) bullets shot on each target; 1.37", 1.75", 1.70".

Even though the POA was the same for all loads, the POI for the 2 different bullets with each powder, & for all 3, is clearly different, but consistent.

I'll load up some more now with 20 bullets each for a given powder & shoot it again.

Looks like all are pretty decent if viewed in the context of either of the bullets with any of the powders tested.

Rfile is a KAC, 18" barrel with a NF 2.5x10 scope & it only has less than 100 rounds through it.

MM


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