Thread: 75gr Amax 223, Ladder test question

Originally Posted by Beetroot

Do you know what the OAL is with the 75gr?

Actually no I don't. I seat both the 80gr A-Max and 75 gr A-Max to the same length determined on the length measured with a Hornady OAL gauge, but haven't actually measured the OAL of the finished product.

Originally Posted by Beetroot

When determining a .005" seating depth was that just something you tried and ended up working, or did you test to find what shot best?
I think I'll probably try a seating depth of .010" off the lands and give that a crack, .010-.015 off seems to be pretty common according to Google.

The 0.005" was something we tried. We were seating them a bit shorter but went longer because we could (and I re-measured the maximum length with the OAL gauge).

We haven't done enough shooting with the longer length to tell if there is a significant difference.
I think we can say they don't shoot/group any worse that our shorter loads.

They worked well enough at the Nelson Champs in Westport.
The 223 Savage with the 80gr A-Max shot the highest score (of any shooter) at 700 yards in the rain on the Sunday.
So I think we can say that this combination of handload, rifle and shooter is working well enough.