Thread: Belmont rifle powder 763

Sounds like they copied a blurb. Fuck it. Here's the data I've collected...

6.5 Grendel, 20" barrel, 120gr Sierra ProHunter
Starline 1xF, CCI450, Mystery 763, 2.255 OAL
30.5gr, 2318, sooty shoulder
30.8gr, 2322, sooty shoulder
31.1gr, 2349, still sooty
31.4gr, 2385, still sooty
31.7gr, 2433, very sooty
32.0gr, 2484... less sooty
32.5gr (2.270" OAL), 2545fps, case finally obturated
(I'll be testing up to 34.5gr ASAP)

6.5x47L, 28" barrel, 107gr TMK
Lapua 1xF, maybe it's H110, CCI450, 2.610"
39gr: 2934
40gr: 2877
41gr: 3029
42gr: 3123
43gr: 3218, 3175, 3213, 3181
44gr: 3315, 3309, 3265, 3313
45gr: 3333, 3386, 3386
(went with 2208 as it was less erratic especially in the cold)

308Win, 16.5" barrel, 165gr NBT
Lapua Plama 0xF, or PETN?, CCI450, 2.900
47.0: 2469
47.5: 2510
48.0: 2563
48.5: 2579
49.0: 2629
49.5: 2653
50.0: 2701
50.5: 2715 (max for 2000-MR was around here)
51.0: 2751
51.5: 2774
52.0: 2791, primer looking pretty flat, overpressure.
52.5: 2822, didn't die.

308Win, 16.5" barrel, 208gr ELD-M
Winchester 1xF, "Belmont Special Sauce", 3.029
44: 2264, 2265, 2274
45: 2332, 2327, 2324
46: 2438, 2363, 2377
47: 2485, 2474, 2484, pretty warm, but not excessive.