My favorite smokeless load 45-70

This is the place to discuss your duplex and smokeless loads for your black powder guns. All SAFETY concerns must be addressed, and high pressure loads are NOT to be promoted here.
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Ranch 13
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My favorite smokeless load 45-70

Post by Ranch 13 » Wed Dec 19, 2007 11:19 am

First off thanks Rick for adding this heading. I think its good to have a place where folks that just got ahold of a 45-70 and may not be able to get bp readily, to be able to ask questions .

I've found the data accurate provides for their 5744 powder to be quite good at duplicating bp ballistics from my rifle. I also believe it to be more pressure friendly than some of the often promoted bp subs.

I shoot 25 grs of 5744 under a 500 gr bullet in my 45-70 and the velocity falls within 10 fps of bp, and naturally groups into the same groups with no sight changes.

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My favorite smokeless load

Post by gregg877 » Sun Dec 23, 2007 8:49 am

Popped the Cherry on my new 45-70 Pedersoli 74' Sharps Silhouette last weekend using this load, and seems to work, so think I'll stay with it:

21.0grns SR4759, Winchester LR primers, Winchester Brass, Lyman 457124 30:1 with a 2 part beeswax-1 part vasoline lube.

First round out of the rifle(ever) was on the gong @ 100yards. Moved to the paper and was on the bottom edge of the black, 2 ticks up put me in the 10, plus 2 more for the top edge. After that moved to 200 yards. Had to add some windage, (winds were 10-15 left to right), but was still able to shoot 10's @200 all day. Will more than likely be different on a calmer day, but we'll see. BTW, very little recoil.

Looking forward to shooting some of the local matches with that. Still haven't shot any BP out of her yet, but there is no need to right now anyway.

Gregg
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Post by idahjo » Sat Feb 09, 2008 8:18 pm

In 1995, I took my .32-40 Winchester 1885 Hi-wall that had been rebored to .45 caliber and chambered to .45-70, to the range.

The first three shots at 100yards off the bench made a single hole under 3/4". It was actually .228" center to center.

Used a 440 grain Seco RN wheel weight bullet with a reversed gas check under it. Load was 23.4 grains IMR4227 with a dacron wad taking up the space. Federal primer.

[True story] I did not have the 'guts' to fire a forth round into the 3-shot group, but instead stuck it in my pocket to gloat over. How many would have gone into the same hole? We will never know :shock:
Idahjo

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my favorite smokeless load

Post by gregg877 » Sun Feb 10, 2008 7:03 am

Idahjo,

When using the dacron filler, do you weight it, or just tear off a uniform hunk and stuff it in the case?

Have heard mixed things about using it and was scared I'd ring the chamber or barrel. However, if it's perfectly safe, that would sure beat having to tip the barrel up to orient the charge before every shot.

Gregg
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Post by idahjo » Sun Feb 10, 2008 12:06 pm

gregg; It was just an eye-balled wad (approximation of same size) that was used for the specific purpose you stated.

Maybe I should (to prevent conflict) clarify that the Dacron was NOT A WAD, as referred to in previous posts, but in reality a PUFF. It is a loose 'puff' meant only to keep the small amount of powder against the primer in a muzzle-down attitude. Mayhaps I should call it a DACRON PUFF... it is not compacted to any degree.

Wiser minds than I might elaborate on the possibility of 'chamber ringing'.
But that phenomenon is created by PRESSURE spikes, and I would be hard pressed to imagine 'how' a small wad of dacron could create a spike. I would guess that that would be an 'old wives tale' better attributed to too high a load of smokeless OR too fast of a powder that would have done the dirty deed anyways :?
One thing you might be aware that could happen is that the dacron 'could' start to build up a coating in the barrel from successive firing and it might be wise to run a wad of bronze wool through the bore between cleanings if you are shooting for long periods?!?

Best, Idahjo
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Post by idahjo » Sun Feb 10, 2008 12:15 pm

[Forgot to mention] My mentor (a pretty well known N.W. BPCR shooter) and myself in the '90's shot a LOT of duplex loads and wheelweight lead bullets. We experimented with several smokeless powders. Our preference was RE-7. Cannot say why, but IMHO the smokeless charge is just a 'kicker' and except for the extremes on the low-high ends of the burning speed scale there was little difference of what we used. (Quantity used would have to be adjusted when burn speeds varied noticeably, of course)

Just a matter of individual firearm preference I guess.

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Post by zrifleman » Sun Feb 10, 2008 9:07 pm

Idajo----I agree with you on the dacron poly. On the average the 5/8"X5/8" square weigh .5 gr or less. Having shot many thousands of rounds with dac/poly wads and never a hint of ringing, I tend to believe the problems start with a combination of fast powders and card wads. For years I used cork wads with no problems. As for fouling only problem ever was with cast bullet loads in my M1 Garand that fouled the gas trap.

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Post by Leo1885 » Wed Apr 09, 2008 10:22 am

25.0 grains SR4759, 405 grain cast (20/1), SPG lube, dacron filler, and CCI LR primer. Very accurate in my Ruger #1 with 26" Douglas barrel.

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favorite 45-70 smokeless load

Post by beltfed » Sun Nov 02, 2008 8:27 pm

For 18 years my only hunting rifle was my '86 win 45-70, 22" barrel, 1/2mag.

Load settled on was:
RP cases, WLR primer,
48gr DuPont/IMR 3031
Lyman 457483 bullet, cast of 90/10 ww/lino , Hornady gas check,
MTL lube.
Velocity 1740fps.
accuracy, "minute of deer heart"-2" or so at 100 yards.
Note, I had gone as high as the old Elmer Keith load of 53 gr 3031/405 457124, for 1871fps, but it was fierce on both ends, not needed for deer.
Excellent results, minimal meat damage, even hitting bone.
PLEASE NOTE: Not responsible for any results of others with this load.
Its from the NRA Reloading Handbook-2nd ed, 1969 -for the '86win, NOT
TDs. I did shoot the load in a Rem #1 SmokelesRB/45-70 Numrich barrel years ago.
beltfed/Arnie

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Post by Ironramrod » Mon Nov 03, 2008 8:19 pm

Been shooting this load in a Browning 1885 highwall for 10 years and it performs well for me. Serious wound channels with minimum meat damage; blood trails look like they were applied with a paint sprayer. Have never recovered a bullet.

ww brass, Fed 210, LBT long flat nose @ 405 gr., chase patch, ww alloy, LBT blue lube, 40 gr. H4198, chrono @ 1835.

Regards

aces and eights
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Post by aces and eights » Tue Feb 17, 2009 5:28 pm

30 grs 4198 - Dacron puff filler - .06 fiber wad under bullet - money or Postell pill - 1280(s) fps. Good in Shilo Sharps 34" and Remmington 30".
Don't move.

{Doc} Nonsense >by all means --- move.

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Post by Barrgeo » Sun Mar 15, 2009 8:30 pm

aces and eights wroteCOLON30 grs 4198 - Dacron puff filler - .06 fiber wad under bullet - money or Postell pill - 1280(s) fps. Good in Shilo Sharps 34" and Remmington 30".
This is the same load I'm using, but with a pedersoli 1874 quigley 34", with the 525 hard cast postell. Do you have any leading problems? I'm getting quite a bit of lead build up and have to clean about every 10 shots.

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