try finding it in 10 years
The .327 Federal took off like no one expected, and only Ruger and ATK (Federal) had hoped.
Anyone still thinking ammunition scarcity will be an issue in 10 years has had their head in the sand for too long.
Unless you are directing the discussion
specifically at your local area, the ammunition availability argument is no longer reasonable.
The .327 has sold well enough to provide a future for itself for at least another decade. With another couple years on the market, it might extend well beyond that.
Back to the real topic:
I haven't shot the SP101 in .327, but have shot the GP100 (4" I think...) in .357 Mag. I also own a .327 Blackhawk, that has seen .32 S&W, .32 S&W Long, .32 H&R, and various factory loads and reloads in .327 Federal.
I can't imagine the .327 SP101's recoil being very bad. It's very difficult to make comparisons like this, though. ...Especially since every shooter interprets and feels recoil in different ways, and the pistols/chamberings are quite different.
With hot loads, the .327 is a very violent cartridge, but it's also very manageable. With light, or average loads, the .327 is very tame.