9.3 X 57 Mauser

[Hornet37]

Cartridge : 9.3 x 57
Bullet : .366, 200, Impala LW CFN Bullet
Useable Case Capaci: 54.191 grain H2O = 3.519 cm³
Cartridge O.A.L. L6: 3.050 inch = 77.47 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 3031

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 82 38.40 2088 1937 23887 4696 89.1 1.524
-18.0 84 39.36 2137 2028 25244 4847 90.3 1.489
-16.0 86 40.32 2186 2123 26690 4994 91.4 1.455
-14.0 88 41.28 2236 2220 28224 5136 92.5 1.422
-12.0 90 42.24 2285 2319 29857 5274 93.5 1.389
-10.0 92 43.20 2335 2420 31594 5405 94.5 1.357
-08.0 95 44.16 2384 2524 33442 5531 95.3 1.326
-06.0 97 45.12 2433 2630 35411 5650 96.2 1.295
-04.0 99 46.08 2483 2738 37508 5762 96.9 1.266 ! Near Maximum !
-02.0 101 47.04 2532 2847 39748 5866 97.5 1.237 ! Near Maximum !
+00.0 103 48.00 2581 2959 42138 5963 98.1 1.208 ! Near Maximum !
+02.0 105 48.96 2630 3073 44691 6050 98.6 1.180 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 49.92 2679 3188 47421 6129 99.1 1.153 !DANGEROUS LOAD-DO NOT USE!
-----------------------------------------
With IMR-3031... I highlighted the column corresponding to 2,088 fps. at 38.4 gr imr3031.
But as you can see and as Kurz pointed out, the powder doesn't even reach 90% burn at such a low pressure level.

Ran the #'s with N-133 and it doesn't look a whole lot better than imr-3031.
For reduced loads I like using H-4895 (not imr-4895).
H-4895 even tho it doesn't make a complete burn in reduced loads, in my experience it still doesn't burn dirty at the lower chamber pressures. I did use magnum primers with H-4895 reduced loads to help with the burn.
----------------------------------------------------------------------

Cartridge : 9.3 x 57
Bullet : .366, 200, Impala LW CFN Bullet
Useable Case Capaci: 54.191 grain H2O = 3.519 cm³
Cartridge O.A.L. L6: 3.050 inch = 77.47 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon H4895

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 72 36.00 1875 1561 20182 3936 76.8 1.673
-18.0 74 36.90 1919 1635 21220 4079 78.0 1.637
-16.0 76 37.80 1962 1710 22318 4222 79.2 1.602
-14.0 77 38.70 2007 1788 23478 4366 80.4 1.567
-12.0 79 39.60 2051 1868 24704 4508 81.6 1.534
-10.0 81 40.50 2095 1950 26002 4650 82.7 1.501
-08.0 83 41.40 2140 2034 27373 4791 83.8 1.470
-06.0 85 42.30 2185 2120 28824 4931 84.9 1.438
-04.0 86 43.20 2230 2208 30360 5069 86.0 1.408
-02.0 88 44.10 2275 2298 31986 5205 87.0 1.378
+00.0 90 45.00 2320 2390 33709 5339 88.0 1.349
+02.0 92 45.90 2365 2484 35534 5471 89.0 1.321
+04.0 94 46.80 2411 2581 37471 5599 89.9 1.293 ! Near Maximum !
+06.0 95 47.70 2456 2679 39525 5725 90.8 1.266 ! Near Maximum !
+08.0 97 48.60 2502 2779 41696 5847 91.7 1.239 ! Near Maximum !
+10.0 99 49.50 2547 2882 43982 5966 92.5 1.213 !DANGEROUS LOAD-DO NOT USE!
---------------------------------------------

Excellent information. I believe I will be using this as a starting point

 

[Kurz]

I am looking for a 200 grain bullet at 2400 fps

This is the information I was working from, 2400 fps not 2000 fps.

I was also using the Hawk Bullets 200 gr. RN information which will have another effect on the amount of powder burned based on seating depth. I used 2.800" as an OAL in order to get a reasonable amount of bullet in the neck. I quit shooting lead bullets about 20 years ago when I got too busy to spend the time casting and my interest switched to long range. So I ignored the request for a suggestion for the bullet mold. When rearranged, the suggested powders will all be at 98% burnt or better.

Bullet : .366, 200, Impala LW CFN Bullet

This Impala Bullet is a 'Light Weight' solid, not a lead bullet although perfectly suitable for this situation:



Impala CFN (Bosvelder)

The introduction of the Bosvelder range of bullets resulted from Koos Barnard’s request to make him a Flatnose Semi-Wadcutter type bullet for his .375 H&H Magnum during his research for the article published in Man Magnum of July 2010(see reviews). It was immediately realised that the bullet shape and general appearance would be very much accepted by the South African bushveld hunters. After feedback from Koos, the bullets was tested in .30 and .375 calibres by various Impala Bullet hunters and performed excellent in every way the LWHV does. We thus have decided to introduce the CFN (Bosvelder) range in all calibers’ as an equivalent performer to the LWHV bullet.

Regards.

 

[Zero333]

I don't know why I picked 2,000 fps as a baseline. Maybe because I'm not very well versed in cast bullets and thought cast bullets work best up to 2,200 fps.

But the Quickload data is still relevant, just look at the lines where 2,400ish fps are and go from there.

2,400 fps is still far from MAX charge weight so lots of room for adjustment.

Edit:... I'll just edit my posts and highlight in bold the lines corresponding to 2,400 fps.

Will make things a little easier for everyone and literally an effortless thing for me to do.

 

[IdahoSharpshooter]

NOE makes a nice 9,3 bullet mold. I shoot it in my new 9,3x62, a mannlicher stocked 20" Lothar Walther barrel a friend in Iowa did for me. I am an absolute junkie for 98 Mauser action rifles.