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Load needed for a 45 70 using Viht nitro powder


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I have acquired a reproduction Pedersoli falling block rifle but need a starting load using a Viht powder. Could someone be kind enough to point me in the right direction please.

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I use Viht135 with a 405gn RNFP bullet. Quite gentle load, not too hot.

The only other powder I've used in 45/70 is Reloder7 which I prefer but mainly because I usually have it on hand for other cartridges as well.

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11 hours ago, Popsbengo said:

https://www.vihtavuori.com/reloading-data/rifle-reloading/?cartridge=57

Google is quite good you know, try it, you may find alternatives

Read the Viht manual and you may learn why its no use, and do you not think I have trawled google. Thanks for your comments, but not worth the time it took to type it.

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3 hours ago, dorg said:

Read the Viht manual and you may learn why its no use, and do you not think I have trawled google. Thanks for your comments, but not worth the time it took to type it.

Oh dear,  I didn't quite mean it as it reads now I look back, I just meant that I found quite a few ideas on Google when I was looking for a 45/70 load.  No offence was meant.  Note to self:  don't post when distracted by other stuff 😁

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On 7/28/2021 at 8:48 PM, dorg said:

I have acquired a reproduction Pedersoli falling block rifle but need a starting load using a Viht powder. Could someone be kind enough to point me in the right direction please.

I've used Vihtavuori powders in a Pedersoli 1874 Sharps dropping block and a Marlin lever action chambered for 45-70 Government. What bullets are you intending to use?

For note the Pedersoli 45-70 Gov rifles are suitable for rounds with a maximum chamber pressure of 2,000 bar (29,000 PSI), though they recommend no higher than 1,725 bar (25,000 PSI) for hand-loaded ammo. This from one of the Pedersoli manuals I have.

I also have the H&N reloading manual, which has a quite few loads that use Vihtavuori powders.

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With a cast 500gr boolit and 27gr Viht 120 my Handi Rifle kicks like a mule so I use that as a maximum. Approach this load with caution.

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