This is Hodgdons data Hope this helps for reference
Cartridge: 475 Linebaugh
Load Type: Pistol
Starting Loads
Maximum Loads
Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure
325 GR. HDY XTP Hodgdon H4227 .475" 1.740" 27.0 1288 28,000 PSI 31.2 1546 47,700 PSI
325 GR. HDY XTP Hodgdon H110 .475" 1.740" 31.0 1480 36,300 PSI 33.5 1626 47,400 PSI
325 GR. HDY XTP Hodgdon Lil'Gun .475" 1.740" 27.0 1427 34,600 PSI 32.0 1629 47,900 PSI
325 GR. HDY XTP Hodgdon Titegroup .475" 1.740" 8.0 844 21,500 PSI 12.0 1188 48,500 PSI
370 GR. CPB LFP Hodgdon H4227 .475" 1.770" 25.5 1259 31,800 PSI 28.5 1443 47,400 PSI
370 GR. CPB LFP Hodgdon H110 .475" 1.770" 27.0 1328 31,000 PSI 29.5 1476 45,200 PSI
370 GR. CPB LFP Hodgdon Lil'Gun .475" 1.770" 27.0 1442 41,200 PSI 28.5 1531 46,300 PSI
370 GR. CPB LFP IMR Trail Boss .475" 1.770" 6.0 661 16,000 PSI 8.5 824 27,500 PSI
370 GR. CPB LFP Hodgdon Titegroup .475" 1.770" 8.0 925 27,100 PSI 11.0 1130 48,000 PSI
400 GR. HDY XTP Hodgdon H4227 .475" 1.740" 21.0 1049 28,200 PSI 25.0 1301 48,800 PSI
400 GR. HDY XTP Hodgdon H110 .475" 1.740" 23.0 1139 30,200 PSI 25.5 1330 43,900 PSI
400 GR. HDY XTP Hodgdon Lil'Gun .475" 1.740" 21.0 1192 35,900 PSI 24.0 1344 46,500 PSI
400 GR. HDY XTP Hodgdon Titegroup .475" 1.740" 8.0 807 35,900 PSI 9.6 961 48,700 PSI
405 GR. CPB LFP GC Hodgdon H4227 .475" 1.745" 22.0 1148 32,400 PSI 25.0 1304 46,200 PSI
405 GR. CPB LFP GC Hodgdon H110 .475" 1.745" 24.5 1301 40,000 PSI 26.5 1393 48,500 PSI
405 GR. CPB LFP GC Hodgdon Lil'Gun .475" 1.745" 22.0 1278 39,500 PSI 25.0 1389 46,900 PSI
405 GR. CPB LFP GC IMR Trail Boss .475" 1.745" 5.5 603 19,000 PSI 7.5 732 29,600 PSI
405 GR. CPB LFP GC Hodgdon Titegroup .475" 1.745" 8.0 898 36,600 PSI 9.8 1024 48,900 PSI