250 RNFP and WC820(f)

[TCLouis]

Can't remember, but think this is Ranch Dog's GB mold.
44 Mag
RNFP Plain Base
Sized 0.431" Cast from WWs, 251 grains without lube
FWFWL
Taper crimp to bottom crimp groove
The powder is Bartlett's WC820(f) (HS-7 load data according to Bartlett)
Starline Brass
WLP
Distance 25 yards (too lazy to set up my 50 yard bench)
Ruger RedHawk 7.5" barrel

12.0 1.0X1.0

12.5 1.0X1.5

13.0 1.5X2.375

13.5 1.5X1.5

14.0 0.75X1.0

14.5 0.75X1.5 (4 in 0.75X0.75, I think I pulled the one)

15.0 2.25X2.125

15.5 1.5X1.5 (9 shots)


I shot 16 and 16.5 tonight (10/16) but was rushed and in the rain so groups suffered or were just poor anyway. Tomorrow it will be 17 and creep on 17.5, maybe Chrono data on a couple of loading points.
These are all Outside to Outside measurements.
Shooting was off of a rest and the pace was pretty fast for target work.

NO chrono data.

[Leftoverdj]

Gas check or plain base?

[nighthunter]

You didn't specify the cartridge you are shooting. I am shooting 18.5 grains of WC820(n) with a 300 grain flatnose with GC in 2 Ruger Super Blackhawks in 44 Mag. Accuracy is superb in both revolvers and someone on here estimated velocity with load from a disc at 1250 to 1350. The difference being one has a 5 1/2 inch barrel and the other has a 7 1/2 inch barrel. It is a stout load but extraction is quite easy and I have tried them with slightly more powder but the 18.5 grain loads were the more accurate. My WC820(n) says to use AA9 data. I hope this has helped.
Nighthunter

[TCLouis]

I use 18.5 WC820 PD (very old lot)
I shot it against some H110 and they were side by side on velocity.
Anyway
18.5 WC820
Starline Brass
WLP
Lee C429310 FWFWL
9.5" Ruger Super Redhawk
1.5" at 50 yards (outside to outside)

Was able to load this from 18.0 (LOUSY group) to 21.5, but the 18.5 was so much MORE accurate, and from the reaction of water filled coke bottles I am gonna assume MORE than enough for anything I hunt around here.