Okay, so far this is my favorite .223 load, out to 250 yards (in theory) but I have not shot any farther yet.
This is a Hot Load so expect to see some flattening of the primer and some minor cratering. Your brass probably won't last very long. My Savage has a chamber about a half an inch thick and a very stout bolt.
If you blow up your AR shooting this one don't blame me.
Once-shot Federal Champion cases.
CCI BR4 benchrest small rifle primer.
Cases tumbled before and after decap & neck sizing so I can use Lube.
75 grain Hornady Match bthp
25 grains Varget powder.
2.333 COAL
Hornady comparator used for bullet seat check.
I trimmed, deburred, neck-sized,
uniformed, weighed, sorted, graded, and basically went Dr. Frankenstein apeshit on the case prep. charging and seating.
I don't have an exact yardage because I don't have a range finder but I am told this target was at 240 yards. The conditions were mild Gusty winds swirling 90 degrees right to left as they went down the range. My first shot was on the paper 3 o'clock.
Then I put 5 on the target. Under calm conditions I think I could shoot this half MOA at 200+
This is a Hot Load & not sure I would try to shoot it in your particular gun. In any event I single shot every one because they won't feed from the magazine that way.