looking to develop a 77gr load for 5.56

Hey all, I am looking to see if anyone has toyed around with recreating a MK262 load and what success they had.

Does that have to be single loaded in a 5.56 long throated chambering

http://www.midwayusa.com/product/1339912...ng-hollow-point

black hills has a similar build. with a sierra game king. might want to start there.

Rogpog-it doesn't have to be single loaded, they are just seated deeper into the case.

Masterlunatic-I saw those however I don't want to spend close to a dollar a round.

Update - loaded up a handful of rounds using CFE223 powder starting from the min up to the max.

after shooting today, i saw that 23.4gr worked pretty damn well, I even bought the black hills factory loaded ammo. It did not shoot well out of my rifle though.

I've been really successful with varget, very consistent 100-450yds...don't have access go much longer than that. Set up for 1:7 16" monolithic colt. H4895 worked well too.

What are you using grain wise of varget