.177 FT TalonSS setup

I’ve been wrenching on a .177 setup for a couple weeks now and just today it started to show some promise! I started with a 25″ 16mm Target barrel from MAC1 turned the breach and tuned it for 900’ish fps. My idea was to cut the barrel down an inch at a time and shot for fps with the tophat staying exactly the same as well as the power wheel to soo how different barrel lengths effected power on a .177 @ 900fps/20 fpe. Well it turns out setting up the breach over and over is a SERIOUS pain in the ass so it got chopped in bigger chunks 😆

Mistake #1 turned the breach down a little too small cause after I got it smooth and all the scratches out it was .303! factory is .308-.310 so I am pretty sure I was getting some huge fps variances from this. I started smoothing my final breach on the 14″ barrel .315 and I ended up @ .311 with the breach slide working nice and smooth and shots much more consistant.

I was initially thinking I “might” keep the long barrel until I put it together with the shroud on it and it was like a frigging fishing pole! I LOVE the short compactness of the SS so I knew an 18″ barrel was where I was heading, even if I gave up some amount of shots to keep the gun short and handy. Then I undercut the breach on the 18″ barrel 😡 did some shooting and cut it down to 14″… so I wasted 11″ of a perfectly good match .177 barrel 😕 live and learn…

I put the muzzle bushing 1/2″ from the muzzle and the other in it’s factory spot for now. The muzzle one has a groove cut into the barrel that the o-rings fit into then a vented bushing presses on over them and is a friction fit into the frame. I’ll be doing something for the rear bushing but it is kind of complicated in that it needs to center the barrel as well as support the power wheel and keep the barrel from being blown out the front of the gun…still working a good solution for it.

For the moment stock hammer, spring, trigger parts(minus the “safety”) and breach slide although I have plans to make all new custom pieces for them as well as a new valve and 1,000CC bottle. The tophat keeps coming loose which is really annoying

Here’s some #’s from the 18″ & 14″ barrels and also from my .177 AirWolf. I was checking to see if maybe the Combro Chrony was f’ing up on me. Damn the Wolf is consistant!

18″ barrel .303 breach old o-rings
611 PW6
584
934 PW8
927
925
929
891
913
904
858 PW12
835
841
927 PW5
951
892 PW4
885
875
828
759 PW3
736
855
746
725 PW2
677
651
757
549 PW1
582
673
533 PW0
507
548
524
592

AirWolf .177 Kodiacs
887
883
889
882
882
882
884
882
879
883
887
890
888
889
884
888
887

18″ .303 breach new o-rings…hope this would help the undersized breach
692 PW8
692
688
683
677
677
663
678
680
676
671
671 PW12
623
623
648
684 PW6
693
681
673
683
681
685

14″ .310 breach
650 PW2
651
671
632
910 PW6
898
903
893
896
895
887
873 PW8
866
867
865
878

Pics coming later I can’t post or get to them from work…

Jim.