Alright I will share my load and tell my lame story of how I came to find this load, I have six ARs. I have been working all summer to find the most accurate load for what should be my most accurate rifle. the rifle in question is a RRA 16 mid length 1/8 twist Wilde chambered stainless rifle. It has always shot about 1 moa at 100 yards no problem. So I set out to find the perfect load and buy expensive scope to take advantage of said perfect load.
First I went from 60 grain bullets to the Hornaday 68 bthp. Supposed to be very accurate right? well then on to 69 gr matchking. After being displeased with their performance on to 75 gr bullets. By displeased I mean 10 shots at 100 yards in an inch but at 200 yards like 3 inches and at 300 yards like 5 inches. Now you have to understand that I am trying each different weight bullet with 5 different powder loads. back and forth to the range day after day week after week. All summer long. The only thing that's making me not feel like an incompetent dope is the fact that my 16 inch RRA 6.8 spc rifle shoots 10 shots under an inch at 100 yards less than 2 inches at 200 yards and right around 3 inches at 300 yards and that is at a rate of about 3 shots per minute. So I guess I can shoot OK but something is not right to make my group open up so much past 100 yards.
Now after all this I notice that I am all out of primers. So now I am looking all over for primers and there are none anywhere on the entire planet.
I am also getting low on plinking/training bullets. I usually use the ss109 62 bullet that's used in the M855 load for the military. Well anyway as luck would have it I see that Wideners has some wolf SRM primers in stock. So I say what the hell and click on them right away before they are gone. At 23.50 per thousand I order 10K. I also ordered some Hornaday 55 gr soft point flat based spitzer bullets. Bulk rate only like $95, I get only 1000 as they are not really my thing.
So now all my stuff comes in the mail and I am sitting at my bench looking at this stuff that just came with no loads at all in mind for them as I really didn't even want them. I have 4 presses and one is set up for my plinking load 23 grains of H 322 which I use in my 62 grain ss109 load. This is max for 62 grain .223 but not for 5.56. I have loaded as much as 24 grains with no problem.
So now I am looking at the stuff and don't even feel like thinking about it so I think magnum
primer need less powder but 55 grains is lighter that my usual 62 grain, so what to do? I just said fuck it. So I loaded up 50 rounds of the 23 grains of H 322 with the wolf magnum primer and the 55 grain Hornaday sp bullet. The brass was not trimmed and it was all kinds of different brass military and commercial both. Like I said I just didn't give a shit.
So now I go to the range fire off a few shots at 100 yards with a 2x7 scope look through the spotting scope and see they were a lillte low and I make the adjustments on the scope. Now I start shooting these half ass loads ( I did check the first few rounds for pressure signs) for a group at 100 yards. I shoot 10 rounds and the range goes cold. So not really being able to see the group that well with the not so great scope I walk down the range to look at target. I get up there and there are 10 shots less than an inch. With bulk bullets. I then proceed to put 10 more on top of the same group 20 in an inch. I change targets and I am pretty excited and shoot a couple more inch or less groups and I am out of ammo. I can't believe this is happening as this should be my least accurate rifle. 16 inch RRA 1/9 twist chrome bore not free floating.
Anyway I am happy with this load but I am skeptical of how it will do at past 100 yards. The next week I go to the 200 yard range and its putting 20 shots right at 2 inches. I can't believe it after all the shit I went through with the other rifle/load. I fire 500 more at 200 and 100 yards over the next two weeks and the results are the same. The expensive scope is now on the 1/9 chrome bore and the "match" barrel gun is for sale, fuck that thing. I will test it in 2 weeks at 300 yards. I only have access to 300 yard range a few times a year.
So in summary the load is 23 grains of H 322 with the Wolf small rifle magnum primer and 55 grain flat base soft point bullet. I am not even going to bother trying to improve the load. I am guessing it is about 2900 FPS from the 16 barrel.