Hmmmm...
Extrapolating from that information I'd guess they could pump my 14.5" barreled .22 Sniper XR pistol/carbine convertible up near 35 foot pounds.
On second thought, since I use her mostly for Extreme Pistol Field Target competition on power-level 2 due to the 20 FP power limit, Black Betty is perfect as-is. Matter of fact after doing the convertible work I had to reduce reg pressure to find 19.99901 foot pounds on PL2; that dropped PL4 from 30 to 28 FP.
View attachment 547674 View attachment 547675 I really, REALLY love my .22 Sniper XR; however she required a (warranty) barrel replacement by AoA. I then did a LOT of tuning and tweaking, both before and after the pistol/carnbine conversion. All the details are in the attachment.
View attachment 547676