Career 707 II Carbine Pellet Shuttle Adjustment

[Rescue912]

I just worked a deal for a 707 carbine in .20 with a target stock. One of my bucket list rifles so I am stoked. Single feeding, it shoots JSBs well on low power (green on power wheel being 880FPS) so I pulled the breech and reset the shuttle to as shallow as it will go, it was previously set for Eun Jins which are way longer.

It feeds the cylindricals like butter but I need to shorten it just a bit more because the JSBs still hang and it damages the skirts. I've seen talk of a shuttle mod that might help feed multiple pellets better but no real details. Not asking for any trade secrets but anyone have a quick snapshot? Before I clamp the shuttle to the mill and fuzz cut the adjustment hole a little deeper I was wondering if a little taper on the shuttle could get me what I need.

Thanks in advance !

[Extreme]

   You will love your little carbine .20
I had mine tuned by Will Piatt, he explained that the skirts of the JSB pellets are too soft and will hang up. My Carbine loves the HN Baraccuda 13.58 I shoot her between the lowest and mid setting. Great accuracy out to 75yds. Have not tried her past that. Sighted in at 55yds dead on.

Best of Luck Brother Man

[Extreme]

    I had Anthony Storey build me a fat and short LDC which looks very nice. Really balances the Carbine for nice off hand shooting. Only problem is I have to remove it to fill my gun. I chose this, I installed the foster fitting, much nicer than having an adapter to carry around.

  Best of Luck

[Rescue912]

Thanks, I will try the 'cudas. It came with a large LDC that is very effective, might see about a smaller option.

[Don in SoCal]

I had Tim at MAC1 do an inlet feed ramp radius to ease feeding of Crow Magnums. This radius makes the transition from the shuttle to the chamber much smoother. I use JSB Exact Heavy 18.13gr. pellets with no issues. Mod was done years ago and I don't believe he works on them anymore. He may provide you some advise and guidance if you contact him.

[Nomadic Pirate]

Good thing with those guns is they they like a wide range of ammo so you're not restricted to
JSBs to shoot well