9.3 X 57 loads

Never had it on the chrony, but my best load has been

42 grain imr 4064
Speer 270 grain

Interesting., I just did a series starting with 38 grains of IMR 4064 with groups of about 3", expanding to 6" at 40 gr, and back down to 1.5" at 42 grains.
Bullet, NOE 285 grain gas check sized 0.368" with gas check
When I got the 6" group I was about to give up and pull the rest of the loads as I though the lead bullet was failing, apparently not.
 
And Norma data for Velocity comparison

Warning! Barrel Length: 24 inches; Twist: 1-14 1/6 inches; Case: Norma; Primer: Winchester Magnum (WLRM)
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
232 Norma FMJ Norma N-201 46 2333
Remarks:#max load; COAL: 2.992 inches
232 Norma FMJ Norma N-201 44 2244
Remarks:#min load; COAL: 2.992 inches
232 Norma FMJ Norma N-202 46.4 2356
Remarks:#max load; COAL: 2.992 inches
232 Norma FMJ Norma N-202 44 2156
Remarks:#min load; COAL: 2.992 inches
232 Norma Vulkan Norma N-201 46.9 2320
Remarks:#max load; COAL: 2.933 inches
232 Norma Vulkan Norma N-201 44 2211
Remarks:#min load; COAL: 2.933 inches
232 Norma Vulkan Norma N-202 49.1 2379
Remarks:#max load; COAL: 2.933 inches
232 Norma Vulkan Norma N-202 47 2277
Remarks:#min load; COAL: 2.933 inches

286 Woodleigh RNSN Norma N-201 41.5 2041
Remarks:#max load; COAL: 2.972 inches
286 Woodleigh RNSN Norma N-201 39 1906
Remarks:#min load; COAL: 2.972 inches
286 Woodleigh RNSN Norma N-202 42.9 2067
Remarks:#max load; COAL: 2.972 inches
286 Woodleigh RNSN Norma N-202 40 1946
Remarks:#min load; COAL: 2.972 inches
286 Woodleigh RNSN Norma N-203-B 46.1 2067
Remarks:#max load; COAL: 2.972 inches
286 Woodleigh RNSN Norma N-203-B 44 1942
Remarks:#min load; COAL: 2.972 inches
286 Norma Alaska Norma N-201 42.1 2041
Remarks:#max load; COAL: 3.012 inches
286 Norma Alaska Norma N-201 40 1955
Remarks:#min load; COAL: 3.012 inches
286 Norma Alaska Norma N-202 44.3 2073
Remarks:#max load; COAL: 3.012 inches
286 Norma Alaska Norma N-202 42 1988
Remarks:#min load; COAL: 3.012 inches
286 Norma Alaska Norma N-203-B 47.1 2073
Remarks:#max load; COAL: 3.012 inches
286 Norma Alaska Norma N-203-B 45 1929
Remarks:#min load; COAL: 3.012 inches
286 Norma Oryx Norma N-202 44.5 2100
Remarks:#max load; COAL: 2.933 inches
286 Norma Oryx Norma N-202 43 2034
Remarks:#min load; COAL: 2.933 inches
286 Norma Oryx Norma N-203-B 46.5 2093
Remarks:#max load; COAL: 2.933 inches
286 Norma Oryx Norma N-203-B 44 2008
Remarks:#min load; COAL: 2.933 inches
 
Here is some of the data that I have recorded. The rifle is a Husqvarnva 46a. All cases are R.P. 8x57 necked up with Hornady dies. WLR primers. Some bullets are .375" resized to .366" with a Lee bullet sizer, they are labeled .375rsz.

250gr. Accubond- R15 -3.160"COL- 50gr=2228fps 51gr=2260 52gr=2325 53gr=2315 54gr=2316

250gr. Accubond- H4895-3.180"COL- 50gr.C=2332 51grC=2385 52grC=2382-MAX C= compressed powder load

250gr. Accubond- H335-3.180"COL- 50gr=2263 51gr=2319 52gr=2392 The 52gr load hits 5" high vs the Hornady 286 47.5gr load.

286gr. Hornady- H4895-3.166"COL- 46gr=2139 47gr=2185 47.5gr=2173

270gr 375rsz Hornady-R15-3.166"COL- 48gr=2029 49gr=2095 50gr=2152

270gr 375rsz Hornady-H4895-3.166"COL- 46.5gr=2167 47.5gr=2234 48.5gr=2266 The 48.5gr load hits 2" high vs the 47.5gr 286gr load.

235gr 375rsz Speer-H4895-3.005"COL- 50gr=2353 51gr=2411

235gr 375rsz Speer-H335-3.000"COL- 54gr=2447 55gr=2495 56gr=2533 57gr=2595 The 57gr load hits 7.5" high vs the 47.5gr 286gr load.
 
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Here is some of the data that I have recorded. The rifle is a Husqvarnva 46a. All cases are R.P. 8x57 necked up with Hornady dies. WLR primers. Some bullets are .375" resized to .366" with a Lee bullet sizer, they are labeled .375rsz.

250gr. Accubond- R15 -3.160"COL- 50gr=2228fps 51gr=2260 52gr=2325 53gr=2315 54gr=2316

250gr. Accubond- H4895-3.180"COL- 50gr.C=2332 51grC=2385 52grC=2382-MAX C= compressed powder load

250gr. Accubond- H335-3.180"COL- 50gr=2263 51gr=2319 52gr=2392 The 52gr load hits 5" high vs the Hornady 286 47.5gr load.

286gr. Hornady- H4895-3.166"COL- 46gr=2139 47gr=2185 47.5gr=2173

270gr 375rsz Hornady-R15-3.166"COL- 48gr=2029 49gr=2095 50gr=2152

270gr 375rsz Hornady-H4895-3.166"COL- 46.5gr=2167 47.5gr=2234 48.5gr=2266 The 48.5gr load hits 2" high vs the 47.5gr 286gr load.

235gr 375rsz Speer-H4895-3.005"COL- 50gr=2353 51gr=2411

235gr 375rsz Speer-H335-3.000"COL- 54gr=2447 55gr=2495 56gr=2533 57gr=2595 The 57gr load hits 7.5" high vs the 47.5gr 286gr load.

Thank you !
 
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