Zro Delta?

I see people have problems with supporting and shooting technique (shooting from bench). Everything from resting the rifle on the magazine, grip, to the front rest against the barrel or very end of the hand guard. Hold and trigger reset seems common also, holding soft isn't usually the way. Otherwise gas tube needs to be fitted thru the barrel nut without touching. Gas block/gas pressure needs to be correct. And the fitment between upper/lower.
 
I’ll say the Rosco purebred barrels have stellar accuracy, and I just bought a 13.7 from primary arms for $130. Very cost effective accuracy upgrade for most budget off the rack AR’s. Pair with a decent scope and a quality mount and you should have a solid coyote rifle
 
I took 6 different loads to the range today. My powder was AR Comp and the bullet was a 55 grain Sierra soft point. My loads started at 24 grains and increased a half grain per group (5 rounds each). First load of 24 grains produced a group of 4 shots a little over 1 1/2 inchs and a flyer into no mans land. 24 1/2 grains got a group right at an inch +/- a little. (I'm not measuring them just counting the 1/4 inch squares.) 25 grains opened back up, 25 1/2 was a respectable group from an AR in my opinion but when I hit the 26 grain load my world changed. 5 shots of 26 grains of powder and you can cover the group with a dime. Now you got my attention. the 26 1/2 gain load opened back up and was probably the worse group of the lot.

I was shooting off a rest with a rear bag and was having some issues keeping my scope on the bull. Its only an 8 power with a small dot that covers a one inch stick on spot and the dot in my scope covers the target spot. After the first three groups I changed the way I was shooting and started holding the fore-end with my left hand. This steadied me a bunch and I was able to stay on the bulls eye much better. So maybe with the decent load work up and learning how to shoot my rifle more accurately its a winner. Starting to like this ZRO Delta but it is a finicky eater.
 
Try a 6 o'clock hold on dot if reticle completely covers the dot, or get 1.5 or 2" dots next time. Reticle to aim point size can make a huge difference in group size, especially with "seasoned" eyes. Ask me how I know, Bill. 😂
 
LOL, I finally found a bullet/powder combo that works and you can't buy AR Comp powder. At least I have a almost full pound. It will give me a little time to look.
 


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