Ive found my 450 marlin caliber BLR absolutely loves 50 grains of IMR3031 under a 405 remington bullet with a 215 fed primer, Im not 100% sure of velocity but its a hard hitting load thats producing 1" hundred yard groups off the bench consistently
http://www.chuckhawks.com/450Marlin.htm 450 marlin handloads.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 250 Barnes XFN Hodgdon H-4198 57.0 2,288
Remarks: 2.10 group
300 Nosler Partition Accurate XMR-2015 60.0 1,970
Remarks: 1.95 group
300 Nosler Partition Accurate XMR-2015 62.0 2,091
Remarks: 1.80 group
300 Sierra JHP Vihtavuori VV-N130 51.5 1,751
Remarks: 2.25 group
300 Sierra JHP Vihtavuori VV-N130 53.0 1,869
Remarks: 2.10 group
300 Sierra JHP Vihtavuori VV-N130 54.0 1,990
Remarks: 1.90 group
300 Barnes XFN Hodgdon H-4198 50.0 1,982
Remarks: 1.65 group
350 Hornady FP Hodgdon H-4198 48.5 1,842
Remarks: 1.60 group
350 Hornady FP Hodgdon Varget 59.0 1,770
Remarks: 1.65 group
350 Hornady FP Hodgdon Varget 61.0 1,821
Remarks: 1.70 group
350 Kodiak FP IMR IMR-3031 56.0 1,827
Remarks: 1.55 group
350 Kodiak FP Hodgdon H-335 60.0 1,872
Remarks: 1.20 group
400 Speer FN Hodgdon H-4895 56.0 1,773
Remarks: 1.75 group
405 Kodiak FP Hodgdon H-322 52.5 1,842
Remarks: 1.50 group
405 Magma cast IMR IMR-4198 32.0 1,332
Remarks: 2.00 group
415 RCBS cast GC Alliant RL-7 48.0 1,875
Remarks: 1.80 group
415 RCBS cast GC Alliant RL-7 50.0 1,960
Remarks: 1.45 group
300 Lead Flat Nose Accurate AAC-5744 38.7 1,928
Remarks: start chg
300 Lead Flat Nose Accurate AAC-5744 43.0 2,096
Remarks: max chg
405 Lead Flat Nose Accurate AAC-5744 36.0 1,716
Remarks: start chg
405 Lead Flat Nose Accurate AAC-5744 40.0 1,865
Remarks: max chg
300 Sierra FNHP Accurate AAC-5744 43.2 2,034
Remarks: start chg
300 Sierra FNHP Accurate AAC-5744 48.0 2,211
Remarks: max chg
300 Sierra FNHP Accurate AAC-1680 52.2 2,198
Remarks: start chg
300 Sierra FNHP Accurate AAC-1680 58.0 2,389
Remarks: max chg
300 Sierra FNHP Accurate AAC-2015 54.9 2,217
Remarks: start chg
300 Sierra FNHP Accurate AAC-2015 61.0 2,410
Remarks: max chg; compressed load
300 Sierra FNHP Accurate AAC-2230 58.1 2,226
Remarks: start chg
300 Sierra FNHP Accurate AAC-2230 64.5 2,420
Remarks: max chg
300 Sierra FNHP Accurate AAC-2460 60.3 2,214
Remarks: start chg
300 Sierra FNHP Accurate AAC-2460 67.0 2,407
Remarks: max chg; compressed load
300 Sierra FNHP Accurate AAC-2495 59.4 2,001
Remarks: start chg
300 Sierra FNHP Accurate AAC-2495 66.0 2,175
Remarks: max chg; compressed load
300 Sierra FNHP Accurate AAC-2520 56.7 2,034
Remarks: start chg
300 Sierra FNHP Accurate AAC-2520 63.0 2,211
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-5744 39.4 1,813
Remarks: start chg
350 Speer FNHP Accurate AAC-5744 43.8 1,971
Remarks: max chg
350 Speer FNHP Accurate AAC-1680 46.1 1,919
Remarks: start chg
350 Speer FNHP Accurate AAC-1680 51.2 2,086
Remarks: max chg
350 Speer FNHP Accurate AAC-2015 50.0 2,030
Remarks: start chg
350 Speer FNHP Accurate AAC-2015 55.5 2,207
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-2230 55.8 2,067
Remarks: start chg
350 Speer FNHP Accurate AAC-2230 62.0 2,247
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-2460 55.8 2,010
Remarks: start chg
350 Speer FNHP Accurate AAC-2460 62.0 2,185
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-2495 54.9 1,892
Remarks: start chg
350 Speer FNHP Accurate AAC-2495 61.0 2,057
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-2520 55.8 1,982
Remarks: start chg
350 Speer FNHP Accurate AAC-2520 62.0 2,154
Remarks: max chg; compressed load
350 Speer FNHP Accurate AAC-2700 55.8 1,719
Remarks: start chg
350 Speer FNHP Accurate AAC-2700 62.0 1,869
Remarks: max chg; compressed load
400 Speer Flat Nose Accurate AAC-5744 36.9 1,688
Remarks: start chg
400 Speer Flat Nose Accurate AAC-5744 41.0 1,835
Remarks: max chg
400 Speer Flat Nose Accurate AAC-1680 41.4 1,732
Remarks: start chg
400 Speer Flat Nose Accurate AAC-1680 46.0 1,883
Remarks: max chg
400 Speer Flat Nose Accurate AAC-2015 47.3 1,883
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2015 52.5 2,047
Remarks: max chg
400 Speer Flat Nose Accurate AAC-2230 49.9 1,877
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2230 55.4 2,040
Remarks: max chg; compressed load
400 Speer Flat Nose Accurate AAC-2460 54.0 1,909
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2460 60.0 2,075
Remarks: max chg; compressed load
400 Speer Flat Nose Accurate AAC-2495 49.5 1,689
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2495 55.0 1,836
Remarks: max chg; compressed load
400 Speer Flat Nose Accurate AAC-2520 53.1 1,875
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2520 59.0 2,038
Remarks: max chg; compressed load
400 Speer Flat Nose Accurate AAC-2700 53.1 1,620
Remarks: start chg
400 Speer Flat Nose Accurate AAC-2700 59.0 1,761
Remarks: max chg; compressed load
300 Barnes XFN IMR IMR-3031 52.5 1,870
Remarks: 35,000 psi; compressed powder charge
300 Barnes XFN IMR IMR-4198 44.2 2,000
Remarks: 39,000 psi
300 Nosler Partition IMR IMR-3031 57.0 2,100
Remarks: 35,000 psi; compressed powder charge
350 Hornady IMR IMR-3031 56.0 2,030
Remarks: 38,000 psi; compressed powder charge
350 Hornady IMR IMR-4198 45.0 2,050
Remarks: 40,000 psi
400 Barnes Flat Nose IMR IMR-3031 50.8 1,860
Remarks: 40,000 psi; compressed powder charge
400 Barnes Flat Nose IMR IMR-4198 40.0 1,820
Remarks: 40,000 psi
