No doubt. I didn’t record an ES but is easily done here. ES 47. Not great but 100 yd groups were reproducible. This was w/ Magnetospeed V3.
No I didn't, I used the manual powder drop funnel in the dillon 550. I did however tap the case on the bench a few times to see if that would settle/condese the powder. I also tried a once fired unsized hornady case but the result was the same both times.
Thanks for your feedback on this. Much appreciated.Sample size of one here with a single 18" Proof Carbon build and roughly 200-300 rounds of experience with this caliber so take this with a grain of salt. So far it has grouped well with factory loaded 108's, 103's grouped just under 1" and the 80's have been all over the place but I did have a group under 1". See pic below for best five-round group with the 108's.
- I shoot five round groups in roughly one minutes time, so 15-20 seconds between shot. I typically don't shoot more than 5-10 rounds without allowing the barrel to cool down for at least five minutes.
- I have run a JP bolt in a LMT SA carrier with great results and I have run the full JP FMOS BCG as well. I haven't noticed any changes in performance with the full JP BCG but the round count with it is still sub 100.
- Some swear by the need for an adjustable gas block but there have been wide selections in gas lengths which definitely creates another variable that can have an impact here. I believe Proof has the gas lengths the most sorted of any manufacturer currently making 6ARC barrels. I am running a non-adjustable SLR Micro on mine and have no issues suppressed.
- I had the same experience with the 80 VT's specifically without a can but it was simply to test for shift. I think most will shoot the 6ARC suppressed so it's not an issue in my eyes.
- With my 18" Rifle +1 I have beening a Carbine buffer but I could see moving up to an H1 as I go shorter. Lot's of variables here, just play with your particular setup until you find what works best.
Stay away from any Rainier with the Tin (Gold) extension.
did you ever shoot any of the 106gr a tip seconds? if so what was the recipe and how did they do? I loaded mine up with 28.9 (below max charge) of lever and they were going 2680fps out of a 18 inch odin barrel in like a 1.2 MOA grop but this odin barrel has been lackluster thus far.
thats what I found with the lever charges. It was shooting like 150fps faster than stated in the book with a 18 inch barrel but the case heads didnt have any swipes or bulges. with 106 tap, 106 atip, and 105 berger hybrids. the hybrids shot the best out of all of them. What projectiles were you using with the CFE223? I'd like to try that.
Ah, I thought you were calling BS on the guy claiming those velocities from a bolt gun in your original post.
For anyone interested, playing around with the propellant suggestions feature in QL for 87 VMAX, 85 SMK and 75 VMAX set to max case fill and 100% propellant burn... AR Comp is top of the list for all 3 of these bullets...
Showing a 95-100% case fill and 99-100% propellant burn rate for all 3 of these bullets and not going over 52,000psi 6 ARC AR15 max pressure. Velocity looks excellent with 27.7gr AR Comp and 87 VMAX @ 2938... 85 SMK @ 2994...
Im going to load up some AR Comp with these 2 bullets and see what kind of results I get. WAY more temp stable than CFE223 and Lever....
75 VMAX
85 SMK
87 VMAX
