02-03-2022, 11:04 AM
(This post was last modified: 02-03-2022, 11:10 AM by r.tenorio671.)
...some chrony results from todays testing w/LeverEvolution & miscellaneous bullets. The intent of the tests was to check for pressure signs. Brass is converted virgin Starline 6.5G converted that was annealed before sizing & trim, CCI 400 small rifle primers. Chrony used is a Chrony Beta Master. Approx 85F/80%H, cloudy w/scattered showers, altitude 600ft. Due this being the 1st firing of virgin brass I expected wildly high SD/ES numbers, which did occur.
Barrel: 18" Ballisitic Advantage, RLGS w/SLR AGB, std carbine buffer system, VG6 6.5 GAMMA Brake
Berger 95 Classic Hunter, CBTO 1.686", COAL 2.174"
28.4 = 2595 fps avg
28.7 = 2623 fps avg
29.1 = ERR
Berger 95 VLD, CBTO 1.660", COAL 2.257"
28.4 = 2600 fps avg
28.7 = 2632 fps avg
29.1 = 2669F fps avg
Berger 105 VLD, CBTO 1.659", COAL 2.255"
28.4 = 2603 fps avg
28.7 = 2594 fps avg (had 1 round 50fps slower than rest, possible chrony issue)
29.1 = 2677 fps avg
Hornady 87 VMAX, CBTO 1.661", COAL 2.130"
30.0 = 2817 fps avg
30.4 = 2881 fps avg
30.9 2965 fps avg
Hornady 90 ELDX, CBTO 1.655", COAL 2.167"
29.8 = 2790 fps avg
30.1 = 2789 fps avg
30.4 = 2867 fps avg
Hornady 108 ELDM, CBTO 1.684", COAL 2.250"
28.5 = 2594 fps avg
28.8 = 2583 fps avg
29.1 = 2611 fps avg
Nosler 105 RDF, CBTO 1.679", COAL 2.245"
28.4 = 2596 fps avg
28.7 = 2614 fps avg
29.1 = 2672 fps avg
The biggest take-away for me was that I more than likely can go up in charges for more speed as none of the brasss had any visible or obvious pressure signs, no ejector marks, shines or digs, brass was ejecting on a 3:30-4:00 pattern approx 2 steps away in a nice little pile. I started my loads in the approximate "middle" charge of data available between Hornady & Hodgdon. The recommendations I received from Berger for their bullets was VERY conservative, I exceed them. Next round will be the highest charge weights from this test in this now 1x fired brass. My goal is for all bullets to have a fps that stays supersonic to 1100-1200.
YMMV, work your way up safely!
Barrel: 18" Ballisitic Advantage, RLGS w/SLR AGB, std carbine buffer system, VG6 6.5 GAMMA Brake
Berger 95 Classic Hunter, CBTO 1.686", COAL 2.174"
28.4 = 2595 fps avg
28.7 = 2623 fps avg
29.1 = ERR
Berger 95 VLD, CBTO 1.660", COAL 2.257"
28.4 = 2600 fps avg
28.7 = 2632 fps avg
29.1 = 2669F fps avg
Berger 105 VLD, CBTO 1.659", COAL 2.255"
28.4 = 2603 fps avg
28.7 = 2594 fps avg (had 1 round 50fps slower than rest, possible chrony issue)
29.1 = 2677 fps avg
Hornady 87 VMAX, CBTO 1.661", COAL 2.130"
30.0 = 2817 fps avg
30.4 = 2881 fps avg
30.9 2965 fps avg
Hornady 90 ELDX, CBTO 1.655", COAL 2.167"
29.8 = 2790 fps avg
30.1 = 2789 fps avg
30.4 = 2867 fps avg
Hornady 108 ELDM, CBTO 1.684", COAL 2.250"
28.5 = 2594 fps avg
28.8 = 2583 fps avg
29.1 = 2611 fps avg
Nosler 105 RDF, CBTO 1.679", COAL 2.245"
28.4 = 2596 fps avg
28.7 = 2614 fps avg
29.1 = 2672 fps avg
The biggest take-away for me was that I more than likely can go up in charges for more speed as none of the brasss had any visible or obvious pressure signs, no ejector marks, shines or digs, brass was ejecting on a 3:30-4:00 pattern approx 2 steps away in a nice little pile. I started my loads in the approximate "middle" charge of data available between Hornady & Hodgdon. The recommendations I received from Berger for their bullets was VERY conservative, I exceed them. Next round will be the highest charge weights from this test in this now 1x fired brass. My goal is for all bullets to have a fps that stays supersonic to 1100-1200.
YMMV, work your way up safely!