I've shot the 44 mag in several Rugers over the last 30+ years. For hunting that Keith 240 bullet over 20 grs of 2400 will kill deer as far as you want to shoot at them.
I cast my own from a Lyman 429421. I shoot them as cast out of wheel weights, AC or WC. the WC are a bit harder. Lubed with LLA. No leading even at high velocity.
In my SBH with the 7.5 barrel and iron sites can cut one ragged hole at 25 yards, about an inch at 50. If I do my part.
Loads up to around 21.5 grs shoot better but are not as comfortable. It is a bit over most books but in my SBH when you tipped the gun up to unload the empties came out with hardly a tap on the ejector, no flattened primers.
I've used the 20 gr load and even at 100 yard I can shoot through most any deer I've shot at. last one at 85 yards hit the front shoulder as it was quartering toward me and exited the opposite hind quarter, broke the shoulder and hip on the way through.
Bang flop you might say.
Leo