45-70 500gr Data
- Thread starter y2k
- Start date
- Location
- Whitehorse, Yukon
Loading Data
.45-70 (Loading the Old Ones) Printable Version
Warning! Notes: Apparently prompted by the availability of modern rifles for it, factory ammo for this grand old caliber has shown a vast improvement. Although the old standard load with its 405-grain softnosed bullet launched around 1,330 fps is still best for many of the older rifles, particularly those with weaker actions, the new factory loads with 300-grain jacketed hollowpoints that are rated around 1,800+ fps are tops in modern rifles. Rifles rank in three groups according to their strength. Group I (see remarks), are weaker action rifles. Group II (see remarks) includes rifles with moderately strong actions. Group III (see remarks) features rifles with strong actions. Cast bullet loads for .45-70 are for rifles of all groups. (Handloader Issue 142 "Loading the Old Ones" by Ken Waters)
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
500 Lyman 457125 RN-cast bullet IMR IMR-3031 38.0
Remarks: cast bullet
.45-70 (Loading the Old Ones) Printable Version
Warning! Notes: Apparently prompted by the availability of modern rifles for it, factory ammo for this grand old caliber has shown a vast improvement. Although the old standard load with its 405-grain softnosed bullet launched around 1,330 fps is still best for many of the older rifles, particularly those with weaker actions, the new factory loads with 300-grain jacketed hollowpoints that are rated around 1,800+ fps are tops in modern rifles. Rifles rank in three groups according to their strength. Group I (see remarks), are weaker action rifles. Group II (see remarks) includes rifles with moderately strong actions. Group III (see remarks) features rifles with strong actions. Cast bullet loads for .45-70 are for rifles of all groups. (Handloader Issue 142 "Loading the Old Ones" by Ken Waters)
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
500 Lyman 457125 RN-cast bullet IMR IMR-3031 38.0
Remarks: cast bullet
- Location
- The Conservative part of Ontario
What rifle? Strength?
- Location
- The Conservative part of Ontario
Hogdon's 25th Data Manual lists
500 grain loads "For Ruger or 1895 Marlin Only"
(My experience, the modern 1886 Win is at least as strong as the 1895 Marlin)
IMR 3031 44 grains (for 1454fps) to 48 grains (1639 fps)
That top load will be brutal on both ends. Beware.
500 grain loads "For Ruger or 1895 Marlin Only"
(My experience, the modern 1886 Win is at least as strong as the 1895 Marlin)
IMR 3031 44 grains (for 1454fps) to 48 grains (1639 fps)
That top load will be brutal on both ends. Beware.
- Location
- The Conservative part of Ontario
I'm not having a lot of luck with Trapdoor data and 3031.
Most of my manuals want faster powder like 4227 for the trapdoor. I suspect that 3031 may not burn effectively at the low trapdoor pressures.
Most of my manuals want faster powder like 4227 for the trapdoor. I suspect that 3031 may not burn effectively at the low trapdoor pressures.
The use of H322 or H335 works much better for heavier bullets, inaposed to 3031. Although H322 and Alliant Reloader 7 seem to be the best "Do All" powders for the 45/70 that handle all weights with good accuacy. Back to your question, I don't have me reloading manuels/My notes handy right now but, for your Browning 1886 Win, 40,41 grains of H322 will put you around 1500fps with a 500gr bullet. Note I beileve this is too much pressure for your springfield.
Cheers
Seabass
Cheers
Seabass
- Location
- The Conservative part of Ontario
Personal note, Rel 7, and H4198 work best in my Customized Original 1886.
45-70 loads
I have been using an 1873/79 variant trapdoor rifle in cowboy action long range. Have also used an 1886 Winchester, 45-70 rifle. The two guns are very accurate and consistant. The load that I found works well with good accuracy out to 300 yards is as follows.
Trapdoor load;
-Lyman 457193 cast wheel weight alloy, coming out at 420 grains, sized to 0.459".
-SR4759, 21.5 grains, with a 3/4" square dacron filler, followed with a Ox-Yoke, 45 cal wonder-wad under the bullet...standard large rifle primer.
Winchester 1886 load;
-Lyman 457193 cast wheel weight alloy, coming out at 420 grains, sized to 0.459".
-IMR 3031, 38.5 grains, 1/16 thick hard felt wad, standard large rifle primer.
Hope this helps
Cheers
I have been using an 1873/79 variant trapdoor rifle in cowboy action long range. Have also used an 1886 Winchester, 45-70 rifle. The two guns are very accurate and consistant. The load that I found works well with good accuracy out to 300 yards is as follows.
Trapdoor load;
-Lyman 457193 cast wheel weight alloy, coming out at 420 grains, sized to 0.459".
-SR4759, 21.5 grains, with a 3/4" square dacron filler, followed with a Ox-Yoke, 45 cal wonder-wad under the bullet...standard large rifle primer.
Winchester 1886 load;
-Lyman 457193 cast wheel weight alloy, coming out at 420 grains, sized to 0.459".
-IMR 3031, 38.5 grains, 1/16 thick hard felt wad, standard large rifle primer.
Hope this helps
Cheers
3031
The loads listed below are for 1886 Winchesters and stronger, and should NOT BE ALLOWED NEAR any Trapdoors.
From a 1958 "Lyman Handbook of Cast Bullets":-
Lyman #457406 500gr. gas checked (round nosed) bullet
41.0gr. 3031 - 1340 fps.
50.0gr. 3031 - 1770 fps. MAXIMUM .
From a 1970 "Lyman 45th. Edition Reloading Handbook", using a 26"bbl 1886 Winchester:-
Lyman #457406 500gr. gas checked
40.0gr. 3031 - 1451 fps.
46.0gr. 3031 - 1677 fps. MAXIMUM
Lyman #462560 552gr. gas checked (no description of this mould in any of my books)
34.0gr. 3031 - 1273 fps.
39.0gr. 3031 - 1442 fps. MAXIMUM
I can not find anything listed in any of my books for "noted as safe" Trapdoor Springfield loads using a 500gr. bullet with 3031 powder other than this, which is listed as "suited to all rifle groups" in Ken Waters' Pet Loads from 1980:-
Ohaus #45500R 518gr. bullet
38.5gr. 3031 NO NOTES as to velocity obtained.
Regards, DaveF.
Regards, DaveF.
The loads listed below are for 1886 Winchesters and stronger, and should NOT BE ALLOWED NEAR any Trapdoors.
From a 1958 "Lyman Handbook of Cast Bullets":-
Lyman #457406 500gr. gas checked (round nosed) bullet
41.0gr. 3031 - 1340 fps.
50.0gr. 3031 - 1770 fps. MAXIMUM .
From a 1970 "Lyman 45th. Edition Reloading Handbook", using a 26"bbl 1886 Winchester:-
Lyman #457406 500gr. gas checked
40.0gr. 3031 - 1451 fps.
46.0gr. 3031 - 1677 fps. MAXIMUM
Lyman #462560 552gr. gas checked (no description of this mould in any of my books)
34.0gr. 3031 - 1273 fps.
39.0gr. 3031 - 1442 fps. MAXIMUM
I can not find anything listed in any of my books for "noted as safe" Trapdoor Springfield loads using a 500gr. bullet with 3031 powder other than this, which is listed as "suited to all rifle groups" in Ken Waters' Pet Loads from 1980:-
Ohaus #45500R 518gr. bullet
38.5gr. 3031 NO NOTES as to velocity obtained.
Regards, DaveF.
Regards, DaveF.
The following loads are from "Supreme Handloads"(45/70) by Mitchell Ballistics and are used with the Author's permission, however they are top level loads and should be worked up to, neither the author or this poster, sanction this or any other loads and can not be held responsible, due to diff. in powder lots, reloading methods, etc. The bullet used was M.T. Chambers 465gr. Flat Point GC cast 10-1 and heat treated.
465gr Chambers...55grs. H-335...cup39,720...vel. 1920fps....TKO=58(test gun: Marlin '95...22" barrel)
For more info on this and other tested top end loads contact Mitchell Ballistics.
465gr Chambers...55grs. H-335...cup39,720...vel. 1920fps....TKO=58(test gun: Marlin '95...22" barrel)
For more info on this and other tested top end loads contact Mitchell Ballistics.
500 Lee gas checked
I don't usually shoot Imr 3031 out of my 45/70s' as several other powders are more accurate allround.......
45.0 grains Imr 3031 and the 500 cast Lee gas check has produced 1.25 inch 3 shot groups / 100yds consistantly in My Ruger #3 and 1.50 inch/100 yds in my newly acquired Browning 78....velocity is just under 1500 fps....
hs45/70........your mileage may vary
I don't usually shoot Imr 3031 out of my 45/70s' as several other powders are more accurate allround.......
45.0 grains Imr 3031 and the 500 cast Lee gas check has produced 1.25 inch 3 shot groups / 100yds consistantly in My Ruger #3 and 1.50 inch/100 yds in my newly acquired Browning 78....velocity is just under 1500 fps....
hs45/70........your mileage may vary
Im bringing this thread back from the dead to ask if anyone has tried this load, or anything close to it.
I recently picked up a box of Hornady 500gr Interlocks and 480gr DGX's. I'd like to find an extreme heavy hitting load for my GG. I am assuming these will have to loaded individually due to overall length, but it should be fun to test...
