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Author Topic: 45-70 "Magnum" recreated  (Read 1006 times)

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Offline Westbound

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45-70 "Magnum" recreated
« on: January 07, 2009, 04:25:20 AM »
Has anyone tried to work up some loads to match Buffalo Bore's "Magnum" 1895 rounds?

I've shot the 405gr at 2000fps that they offer and would like to match this performance.

Also, the Buffalo Bore brass i have has a smaller primer than the normal LR primer.  anyone know what is used here?  I don't have a lot of reloading experience, so i'm hesitant to start making any substitutions without talking with someone with much more experience.
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Offline Default

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Re: 45-70 "Magnum" recreated
« Reply #1 on: January 07, 2009, 05:32:24 AM »
Yes you can reach the Buffalo Bore velocites hand loading.. I load um hot for my brothers 45-70 , Like to call them his "Safari Rounds" .. As for why they are using a smaller primer i couldnt say .. They might be using a small rifle magnum primer perhaps ? I would say the safe bet is to contact them during buisness hours and ask them..

  Oh and from my reload datas i can get some of my loads hotter then Buff bores ;)  But always be careful reaching that close to max listing..

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Offline kevinsmith5

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Re: 45-70 "Magnum" recreated
« Reply #2 on: January 08, 2009, 04:49:16 PM »
Google "Jae Bok Young Hard Caste Bullets". He sells them for a ggod price and will provide you with loading data.
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Offline Handgun Hunter

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Re: 45-70 "Magnum" recreated
« Reply #3 on: January 11, 2009, 12:21:04 AM »
Hey Westbound,

     I've never seen Buffalo Bore brass and find it odd that they would use a small rifle primer, this is usually for smaller cases or match cases. As stated before, I would ask the mfr. about this.

     What gun will you be shooting these loads out of? You can duplicate Buffalo Bores velocity but you want to make sure these loads never accidentally get fired in a gun not designed for these pressures like in a second gun you may have or a friends gun at the range. I have 3 45/70s and one of them will not take these loads, so I load the heavy loads in nickel plated brass and mild loads in the regular brass so I can tell at a glance which ones are the hot ones.
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Offline Westbound

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Re: 45-70 "Magnum" recreated
« Reply #4 on: January 11, 2009, 05:39:55 AM »
Thanks for the input guys!

I contacted Buffalo Bore via email.  I got a response from Tim Sundles within an hour and a half.  He said that they do indeed use small rifle primers on their "magnum" 45-70 loads.

Handgun Hunter, I shoot these with my H&R Buffalo Classic. 
This gun should handle just about any published load, though I stay out of the Ruger #1/Modern Rifle loadings.  The gun should handle it, but I don't know many folks that have enough shoulder to take it :)
Its the only 45-70 I own, so mixed up ammo shouldn't be a concern.
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Offline Default

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Re: 45-70 "Magnum" recreated
« Reply #5 on: January 11, 2009, 11:33:50 AM »
West ,

  The H&Rs can take the wild nastys .. But you hit the nail on the head , Since i recall they use the old style curved butt PLATE .. The question is indeed " Can Your Shoulder Take It " lol
  The 350 gr loads i work up for my brother are one hard kicking SOB and thats with a recoil (factory) pad topped with a slip on limb saver ;)

   Happy and safe shooting ,

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"Freedom is never more than one generation away from extinction. We didn’t pass it on to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children what it was once like in the United States when men were free." ~Ronald Reagan

THE QUICKEST WAY TO ENSLAVE A PEOPLE IS TO DISARM THEM ~ George Mason

Offline EsoxLucius

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Re: 45-70 "Magnum" recreated
« Reply #6 on: January 12, 2009, 06:48:45 AM »
Buffalo Bore uses the 405 grain Remington JSP and specially designed Starline brass for that 45-70 load.  It can be duplicated through handloading.  Rather than using a heavy crimp, Buffalo Bore relies on tight neck tension (undersized expander) and a compressed powder charge to keep the bullet in place during loading and under recoil.  The primer pocket was designed by Tim Sundles of Buffalo Bore and is a doubly recessed small rifle primer pocket intended to be used with the No. 41 small rifle mil-spec anti-slamfire magnum primers.

I would try this load:
Marlin 1895 45-70
405 grain Remington JSP seated to 2.54" and crimped with a Lee Factory Crimp Die
Buffalo Bore brass
CCI No. 41 small rifle primer
46 grains RamShot X-Terminator START
51 grains RamShot X-Terminator MAXIMUM

Work up carefully from START towards MAXIMUM watching for signs of excessive pressure or velocity.
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Offline Westbound

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Re: 45-70 "Magnum" recreated
« Reply #7 on: January 12, 2009, 11:53:39 AM »
Default, the first thing I did after buying the rifle was walk over to the lace on recoil pads and pick one up  ;D

EsoxLucius, Thank you for the load data!!  Do you know what the pressure would be at the starting load?
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Offline EsoxLucius

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Re: 45-70 "Magnum" recreated
« Reply #8 on: January 13, 2009, 04:25:58 AM »
I don't know what the starting load is, but the maximum load is around 45,000 PSI.

http://www.realguns.com/Commentary/comar52.htm
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