Loading 9.3 mm Norma 232 grain in 9.3x74R

[JMV375]

Looking for load data using 3031, 4064 and
W-W 748 for Norma 9.3 mm 232 gr Vulcan/Oryx in 9.3x74R ( for Ruger # 1 )
Any help is appreciated.
JMV375

 

[tarbe]

I loaded the 232 Oryx with 56.5gr IMR4064 in Norma brass with CCI 250 primers.

In a Sabatti DR the load chronographed 2437fps ave at 78F.

OAL was 3.605"

I also loaded the Oryx with IMR 4350 and Varget.

 

[sgt_zim]

GRT shows a max load of 61.5 gr of IMR 3031 and MV of 2658. I find their max loads to be universally conservative and MV to be rather overstated.

Win748 max load 65 gr, reported MV of 2650

IMR 4064 max load 63.5 gr, reported MV of 2604

The Norma book shows all of their loads using Winchester LRM primers, for similar velocities.

 

[BC Tal]

QL gives MAP for 9.3x74R at 49313. All Max loads are just at MAP. I do not recommend these loads and only present the data.
For the 232gr Norma Orynx (69307) from a 24" barrel:
IMR 3031 Max load of 60.70gr (91.6%) gives 49261psi for 2677fps;
IMR 4064 Max load of 63.45gr (94.8%) gives 49304psi for 2632fps; and
WW 748 Max load of 64.59gr (84.7%) gives 49302psi for 2682fps.

We use what we like and what we have, but there are more efficient powers. For example I use VV powders:
VV 550 Max load of 71.83gr (99.2%) gives 49301psi for 2717fps. So for the same pressure it has the highest velocity of the four powders here.

Cheers