range report
Daniel Defense AR15 with 16" government 1 in 7 barrel and a geissele two stage trigger
I seem to be on a better path with my reloading lately.
H322 22.9 Grains
SMK 52 grain HPBT
Once fired lake city brass. In my book brass is brass up until I get more precise/consistent with my loading procedures.
2.240 COAL
Range rules 1 shot a second 20 rounds out of a 20 round mag.
this is off a stack of sandbags and one round a second per the range rules. It is also after I heated up the barrel with some factory ammo.
I am still piecing together bits and bobs for a consistent recipe but this hase been my most accurate to date.
I have also had good luck with IMR 4198 but that is a pain and does not meter well.
I am sure the gun is more capable.
I have some H335 and some 77grain SMK HPBTs that I might try out.
I really need to break down and buy a chronograph to get more scientifical other than random trips to the range. I am really holding off on using the 77grain SMKs until I find a chronograph. I will stick to 55 grain Hornady soft points until that point.
What are the thoughts from the group?
:thank_you2:
I think you measure your group from the center of the top hole to the center of the bottom (or center of the 2 further apart holes) which makes your group slightly smaller.
If your magazine will feed the rounds a COAL of 2.250 may increase your accuracy. Your could load a few rounds between 2.240 and 2.250 and see if your groups were tighter to arrive at the sweet spot for COAL.
Technically you use a precision calculator for any group measurement that is scientific in nature. While Max Spread is the most widely used calculation when analyzing accuracy/precision groups, Average To Center (ATC), as well as group height/width spread are valuable as well.
