Ran a ladder test on my FCP-K .223 yesterday. Once at 100 yds. and once at 300yds. 69gr. Nosler BTHP set 0.010" off of the lands, BHA cases of equal weight, full sized, CCI400 primers, and AA2495 powder. Loaded 3 rounds at 22.5gr, and then added 0.2gr. for one round each through 25.3gr., 17 rounds total. At 100yds. I noticed two excellent sweet spots, one at 22.5 and one around 24.1. Shooting at 300yds. showed nearly the same result.

The entire 17 round group at 100yds. was 0.880" with 0.660" of vertical stringing. The gun obviously shoots good.

I also shot a 5 round group at 300yds. in 1.375" with my brothers 40gr. Sierra Varminter HP/Ramshot XTerminator load.

I will try a 20 round group with both 22.5 and 24.1(ES of velocity on this load has been excellent in my ARs) and see which one performs better @ 300yds.

I am glad that I found the info on the ladder test after first joining this site. Saves a ton of trial and error.