44 Mag sub-sonic

[Fritzcat]

I picked up a NEF Handy rifle in 44 Mag. Has anyone had any experience with these sub-sonic and suppressed? Barrel twist? bullet weights? charges? The barrel is 22", but if it works good with subs I can shorten it and do a Form 1 can. Any advice, would I be wasting my time. I have a 458 Socom bolt gun and waiting on my Form 1. I ran across this at a garage sale and thought I would try. What do you think?