It's a 45/70, any flatnose design at 13-1500 fps is gonna make venison. I personally use a slightly compressed load of IMR7383 surplus 50cal spotter powder for such loads. But that is mostly because I bought a metric crap ton of it cheap and it works very well. I have also used a duplex load of 4198 and various 50BMG surplus powders. Not gonna hand that load out though. My H&R 22 inch Handi Rifle hate hate hated any of the 2400 and filler type loads. Fill the case up with slow powder and a 457122, or my custom 405 grain flatnose mould and she prints tiny groups though. I use lead pipe alloy and all is good with the world. I use a pretty full case of REL 7 for my more "energetic" loads, but I do not shoot many of them cause I am a wuss.
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