I'm pretty new to .223 Rem. Got my first AR and a bunch of once fired brass. The brass is mostly RWS and LC. I decided to use LC for the AR.
MV variation is noticeable with LC brass. Sigma is about 20fps, extreme spread is about 75fps. Group size is not too bad. Less than 2" R50 at 100yd. I think it is quite respectable for a military rifle, especially so for my cheaply built AR. But certainly I want to improve it a bit more.
Round-to-round labradar results clearly indicate correlation between flyers and extreme MV. Reducing sigma will pay off. I noticed different year stamps on the LC brass. Does the brass volume vary a lot from year to year? I probably will do some H2O measurements later, but it is a bit tedious and messy.
Thanks for your inputs.
-TL
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MV variation is noticeable with LC brass. Sigma is about 20fps, extreme spread is about 75fps. Group size is not too bad. Less than 2" R50 at 100yd. I think it is quite respectable for a military rifle, especially so for my cheaply built AR. But certainly I want to improve it a bit more.
Round-to-round labradar results clearly indicate correlation between flyers and extreme MV. Reducing sigma will pay off. I noticed different year stamps on the LC brass. Does the brass volume vary a lot from year to year? I probably will do some H2O measurements later, but it is a bit tedious and messy.
Thanks for your inputs.
-TL
Sent from my SM-N960U using Tapatalk