This is all I could find on loaddata.com
This data was shot by Brian Pearce, Wolfe Publishing Company. Gun: Ruger No. 1; barrel length: 22 inches; case: Starline; primer: Federal 210; bullet diameter: .458"; 350 GR Hornady RN COAL: 2.550", 350 GR Hornady FP COAL: 2.545", 500 GR Hornady DGX & DGS COAL: 2.925"; maximum COAL: 2.925"; maximum case length: 2.105"; trim to length: 2.095".
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Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) Favorite?
500 Hornady DGX or DGS IMR IMR-4198 39.1 1496
Remarks:
500 Hornady DGX or DGS IMR IMR-4198 41.9 1596
Remarks:
500 Hornady DGX or DGS IMR IMR-4198 44.8 1696
Remarks:
500 Hornady DGX or DGS IMR IMR-4198 47.6 1797
Remarks: maximum load
500 Hornady DGX or DGS Alliant RL-7 38.4 1419
Remarks:
500 Hornady DGX or DGS Alliant RL-7 41.5 1519
Remarks:
500 Hornady DGX or DGS Alliant RL-7 44.5 1618
Remarks: maximum load
500 Hornady DGX or DGS IMR IMR-3031 44.1 1401
Remarks:
500 Hornady DGX or DGS IMR IMR-3031 47.1 1510
Remarks:
500 Hornady DGX or DGS IMR IMR-3031 50.1 1619
Remarks:
500 Hornady DGX or DGS IMR IMR-3031 53.1 1728
Remarks: maximum load
500 Hornady DGX or DGS Accurate AAC-2015 39.7 1304
Remarks:
500 Hornady DGX or DGS Accurate AAC-2015 42.9 1419
Remarks:
500 Hornady DGX or DGS Accurate AAC-2015 46.1 1534
Remarks:
500 Hornady DGX or DGS Accurate AAC-2015 49.3 1648
Remarks: maximum load
500 Hornady DGX or DGS IMR IMR-4895 42.4 1238
Remarks:
500 Hornady DGX or DGS IMR IMR-4895 45.1 1332
Remarks:
500 Hornady DGX or DGS IMR IMR-4895 47.8 1441
Remarks:
500 Hornady DGX or DGS IMR IMR-4895 50.5 1550
Remarks:
500 Hornady DGX or DGS IMR IMR-4895 53.2 1655
Remarks: maximum load
500 Hornady DGX or DGS Hodgdon H-322 42.7 1433
Remarks:
500 Hornady DGX or DGS Hodgdon H-322 45.5 1532
Remarks:
500 Hornady DGX or DGS Hodgdon H-322 48.3 1631
Remarks:
500 Hornady DGX or DGS Hodgdon H-322 51.2 1731
Remarks: maximum load
500 Hornady DGX or DGS Vihtavuori VV-N135 44.2 1409
Remarks:
500 Hornady DGX or DGS Vihtavuori VV-N135 46.8 1495
Remarks:
500 Hornady DGX or DGS Vihtavuori VV-N135 49.4 1596
Remarks:
500 Hornady DGX or DGS Vihtavuori VV-N135 52.1 1697
Remarks:
500 Hornady DGX or DGS Vihtavuori VV-N135 54.8 1792
Remarks: maximum load
500 Hornady DGX or DGS IMR IMR-4064 43.4 1218
Remarks:
500 Hornady DGX or DGS IMR IMR-4064 46.3 1320
Remarks:
500 Hornady DGX or DGS IMR IMR-4064 49.2 1439
Remarks:
500 Hornady DGX or DGS IMR IMR-4064 52.1 1557
Remarks:
500 Hornady DGX or DGS IMR IMR-4064 55.0 1671
Remarks: maximum load
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