joelkdouglas
Handloader
- Jun 5, 2011
- 1,310
- 3
I'm starting to think, not really 10-shot load development.
But to find a velocity node, it only took 5 shots today.
H4350
Nosler cases
CCI 200 primers
180 AccuBond 0.075 inches off lands
Charge Velocity
56.2 2829
56.4 2818
56.6 2815
56.8 2813
57.0 2845 and 2855 (had 2 loaded)
I stopped there; I had loaded up to 58 grains but 2800 is Hodgdon's max velocity; 2770 is Nosler's max velocity. And 56.4-56.8 looks pretty flat to me.
I also shot a 3-round group with a 57.0 charge that I had loaded just to see if there was much accuracy potential. About 3 inches at 200 yards; the group was triangular. And the wind in Cheyenne today is blowing about 25 knots, pretty normal for this time of year.
I think with triangular groups one is supposed to make the OAL a touch longer; I'll give it a try with the 56.6 load.
But to find a velocity node, it only took 5 shots today.
H4350
Nosler cases
CCI 200 primers
180 AccuBond 0.075 inches off lands
Charge Velocity
56.2 2829
56.4 2818
56.6 2815
56.8 2813
57.0 2845 and 2855 (had 2 loaded)
I stopped there; I had loaded up to 58 grains but 2800 is Hodgdon's max velocity; 2770 is Nosler's max velocity. And 56.4-56.8 looks pretty flat to me.
I also shot a 3-round group with a 57.0 charge that I had loaded just to see if there was much accuracy potential. About 3 inches at 200 yards; the group was triangular. And the wind in Cheyenne today is blowing about 25 knots, pretty normal for this time of year.
I think with triangular groups one is supposed to make the OAL a touch longer; I'll give it a try with the 56.6 load.