It's been a while since I posted my own thread on here, so I figured I'd show a project I did recently.
This is a JTS aircuda max .22.
The gentleman I did this for refinished the stock himself. The wood on these JTS stocks is very nice. It's a shame it's hidden under a drab stain.
I fit a 24", non choke Lothar Walther 1:17.7 barrel and made up an air stripper / endcap that tensions the barrel, with a carbon shroud. I machined the port to be as free flowing as possible.
I fitted a heavier hammer spring, there was already a lighter valve spring in it. I opened up the valve and ports. Made a new plenum tube end cap and fitted a Huben Power deram valve, regulated drop block.
I tested this at 40 yards with a .22 sized moderator on it (no oversizing) and after getting it on paper and a few shots to settle it in, I put 12 shots in a dime with a very questionable shooting setup. I didn't even clean the barrel! This was with 18 grain JSB at 1060fps with just 1800psi on the reg and free play on the hammer spring, with no valve bounce.
After the gentleman refitted the stock, he's now putting 10 shots in a single hole, with the moderator on, at 30 yards. That's using 20 grain JSB in the high 900's
Let me know what you think. I really enjoyed this one.
This is a JTS aircuda max .22.
The gentleman I did this for refinished the stock himself. The wood on these JTS stocks is very nice. It's a shame it's hidden under a drab stain.
I fit a 24", non choke Lothar Walther 1:17.7 barrel and made up an air stripper / endcap that tensions the barrel, with a carbon shroud. I machined the port to be as free flowing as possible.
I fitted a heavier hammer spring, there was already a lighter valve spring in it. I opened up the valve and ports. Made a new plenum tube end cap and fitted a Huben Power deram valve, regulated drop block.
I tested this at 40 yards with a .22 sized moderator on it (no oversizing) and after getting it on paper and a few shots to settle it in, I put 12 shots in a dime with a very questionable shooting setup. I didn't even clean the barrel! This was with 18 grain JSB at 1060fps with just 1800psi on the reg and free play on the hammer spring, with no valve bounce.
After the gentleman refitted the stock, he's now putting 10 shots in a single hole, with the moderator on, at 30 yards. That's using 20 grain JSB in the high 900's
Let me know what you think. I really enjoyed this one.
