Crosman 760 educate me Reseal Efficiency Mods Tips

[threesuns]

Found this locally and snagged it for 10 bucks. A 6th variant with a rifled barrel! Figures I would find another project just as I m ready to start back at the the golf course after my winter break.

Anyone know if this is any more rare with the rifled barrel? How much better is the factory rifled barrel going to be with pellets? I can hear BBs rattling around inside maybe that has degraded the rifling some.

Should I keep it all original? or incorporate some of the mods from my 5th variant?

[unionrdr]

The ones with the rifled barrels are a tad rarer compared to the smoothbores. But the rifled barrels are also a hair shorter typically. Some have rifled full-length barrels though. I have a couple. I don't use BB's in my 760's when I acquire them. Modern domed pellets work better in them.

[threesuns]

Taking my valve mods to another level for this 6th variant with a rifled barrel. Still just the 1 retention bolt opposite the TP, solder fill in the throat, and angled exhaust but 9/64 this time. Stem reduction to an extreme for me and first time I’ve attempted removal of material around the poppet head. Looking for a bit more power this time.

[threesuns]

Things have moved along a little faster with this 2nd modded 760. Implemented some ideas from my LW barreled 760 like; O-ring in between barrel & support, shims in the clam shells and shrink wrap on the hammer.
The only visible mod is to the probe. I dropped 1/16 inch piece of wire coat hanger behind the magnet to seat pellets a wee bit more and rounded the plastic slightly to ease passage past the O-ring. It will no longer pick up BBs from the reservoir. But I only plan to shoot pellets, since this has the rifled barrel.
While not to the same power as BackRoads’ 760. The results using the OEM cup and valve mods netted some big gains. JSB 7.87gr shoot over 680fps with 10 pumps and show some potential as do the few .452 diameter HN’s I’ve shot while checking fps.

It definitely does not shoot cheap crosman pellets well!

Topped it with a cheap Crosman scope. Starlings better beware.

[threesuns]

One last mod for this 6th variant 760. Added a trigger stop screw. I think it has definitely added me in being more accurate with it.

So is a 760 with a rifled barrel more accurate with pellets? 1rst - find the rite pellet! 2nd - do your part.