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BPCR - Black Powder Rifle Cartridges
 Handloads.Com Forum : BPCR - Black Powder Rifle Cartridges
Subject Topic: .45-70 trapdoor loads Post ReplyPost New Topic
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Geezer
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Posted: August 18 2017 at 7:39pm | IP Logged Quote Geezer

Help please, I'm new here. I just acquired an original 1873 Trapdoor and would like to load some BP cartridges for it. It is in great condition but I'd still like to keep pressures down. I'll only be punching paper so no need for a fast heavy bullet. I'm open to any suggestions anyone has.

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ireload2
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Posted: August 20 2017 at 9:48am | IP Logged Quote ireload2

You should visit BPCR.net for match loads.

Another BP oriented site is the Shiloh Sharps site.

You can also keep pressure down by loading with IMR Trail Boss.


https://www.hodgdon.com/trail-boss/

Edited by ireload2 on August 20 2017 at 9:50am
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Geezer
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Posted: August 20 2017 at 9:07pm | IP Logged Quote Geezer

Thanks Ireload2, I already have that pamphlet. I went to their sire while I waited for an answer here. I really do appreciate your help though. I've been reloading for more years than I can count, just never done anything with BP other than in a ML or Smoke Pole as they call 'em here.

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ireload2
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Posted: August 20 2017 at 9:46pm | IP Logged Quote ireload2

I have been reloading and shooting 45=70s with smokeless since about 1972. I have shot loads that were safe in a Trapdoor to loads that I thought were going to break the stock. All my loading and shooting was done with smokeless in very strong modern single shots.   I know many safe smokeless loads but that is not what you asked for. My loads have mostly used either Unique or the recently discontinued SR4759.

Many BPCR shooters do not size their brass when fired in single shots.

Edited by ireload2 on August 20 2017 at 9:49pm
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twillis
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Posted: August 21 2017 at 9:03am | IP Logged Quote twillis

Ranch13, one of our members here has a forum geared around historical single shots

http://historicshooting.com/mybb/index.php

Edited by twillis on August 21 2017 at 9:04am


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Ranch 13
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Posted: August 21 2017 at 8:40pm | IP Logged Quote Ranch 13

Geezer wrote:
Help please, I'm new here. I just acquired an original 1873
Trapdoor and would like to load some BP cartridges for it. It is in great
condition but I'd still like to keep pressures down. I'll only be punching paper
so no need for a fast heavy bullet. I'm open to any suggestions anyone has.


Thanks Terry for the mention

Anyhow loading the 45-70 with black is pretty straightforward. Simple slow
pour 70 grains of 2 f black powder into a primed case. Set a fiber wad . 030
thick over the powder and use your case mouth expanding die to compress the
powder just enough to seat the bullet (405 grain cast from 20-1 or harder, and
lubed with a quality bp cartridge bullet lube) without damaging/deforming the
bullet nose. Don't use any more crimp than necessary to remove the flair from
the case mouth.
After firing each round blow about 3-4 breaths in the breech. If accuracy
begins to deteriorate simply run a wet patch down the bore on a jag.
Be sure to deprime and wash your cases after firing.

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Geezer
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Posted: August 22 2017 at 1:06am | IP Logged Quote Geezer

Thanks for the info twillis. I just followed your link and signed up there too. I appreciate everyone's help, I've ordered some 405 gr. cast bullets from Buffalo Arms along with Brass. Do I need wads or anything else? Also can I use Grits instead of Cream of Wheat as a filler?

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Pete D.
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Posted: September 10 2017 at 4:13am | IP Logged Quote Pete D.

Just saw this thread.
A load that has worked well for me is the "Carbine load":
55 grains of FFg BP, a grease cookie of a 1/8" beeswax wad between
two 0.030 fiber wads, the remainder of the case is filled with an inert
filler (i use Pufflon) and a 405 grain lead bullet at 0.458".


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