looking for a 75gr 223 load using w748

[Ring31]

i know i should use other powder, but i have 8 pounds of 748, so till its gone, i need a good load.... so far, im lucky to get 1 MOA with what im testing...

[GaCop]

I've only used RE-15, N140 and Varget with the 75 grain A-Max in my 223 Ackley. The newest Hornady manual shows a starting load of 748 at 20.2 grains and the max being 24.0 grains. This data is for a semi-auto service rifle. Hornady doesn't show 75 grain A-Max data in the bolt gun, their data is with a 1 in 12 barrel so stops at the 60 grain V-Max. I would think the max load in a bolt action would be about one grain higher. Of course, only actual load development will show what is maximum in your rifle.

[Ring31]

ya. i have the hornady load data, and worked up the max, im just haveing a problem getting less then 1 moa with all the loads im testing...


trying to see if anyone has found a "good" load with that powder.
im sure i would have better luck with other powders, but like i said... i have 8 pounds of 748

[GaCop]

Are you jamming them? I've had good groups seating .003" into the lands.

[Ring31]

loading at 2.26

[GaCop]

Check you length to ogive from the base, separating your bullets into respective lengths. I've found that the A-Max can vary as much as .002" from bullet to bullet. Since I started doing this, my groups gave really tightened up and SD/ES numbers have dropped too. Have you determined what the max length to your lands are with the 75 grain A-Max?