Has anyone been working with CFE powder in there AR's?. I have AR with a 24" heavy target/varmint barrel with a 1-8"twist. I have some 68gr BTHP hornady's and some 60 hornady v-max to try out. Last week I got 5 shot of the 60 grainer's to group 1/2"@100 yards with 25 grains of Varget. with a average speed of 2800 fps. Think I may get it to group better as I break it in. Have only shot about 50 shots thru this new upper. I thought I would give this new CFE powder a try to see what it might do. Small ball powder should meter better, just don't know how it will perform. If someone has been working with the 60-68 gr bullets that would help. With my old upper it had a1-9" twist heavy 20" barrel and I shot a lot of match black hills ammo I could shoot 1.50" groups at 300 yards. knockin the piss out of them prairie dogs. Thought I would try a 24" and hopefully get longer and tighter groups on paper at least before hitting the dog and hog patch this spring