laughably bad 760

[mav72]

I'll be chopping 4 more inches off one barrel to make it a micro-rifle... think of a 1377 with better ergonomics and a (albeit flimsy) dovetail.

For the money, I'm happy. 

Those low cost long one piece scope risers can help with the flimsy dovetail situation. I use them on my "clambshell" guns. There shouldn't be any loading issues if you use the pellet clip. It helps the scope clear the rear sight, depending on scope position. They come in offset versions too.

[anti-squirrel]

I'll be chopping 4 more inches off one barrel to make it a micro-rifle... think of a 1377 with better ergonomics and a (albeit flimsy) dovetail.

For the money, I'm happy. 

Those low cost long one piece scope risers can help with the flimsy dovetail situation. I use them on my "clambshell" guns. There shouldn't be any loading issues if you use the pellet clip. It helps the scope clear the rear sight, depending on scope position. They come in offset versions too.

I'll be investing in the 1-piece dovetail mount rail.

Why?  Because the gun now blows my mind.  If I hadn't shot it myself, I'd would have never believed it.  Single hole groups with RWS pointed, JSB Exact, Beeman Silver Arrows, H&N Barracuda (best overall), and 7.9 CPHPs.  H&N Excite, Norica wadcutters, and RWS HPs shot well, but not in the same league.  The CPHPs actually were evil-accurate, but I still ended up with at least one flier every 5 shots, so nope.  JSBs and H&N Barracuda both had me taking a shot, then setting the gun down and walking up to my trap.  This week I'll be opening up to 15 yards, though I need to put a real better scope on the rifle.  It's now worth it.

Moral of story?  If you have a 760 pumper and want it to shoot well, order up the barrel for the Mk4 .177 pumper. 

Oh, and that little piece that aligns the barrel and lines up over the transfer port?  Very easily removed using a crescent wrench on the plastic piece (aligned with the flat sides) then grip the old barrel with a pair of slip-joint pliers or Channel-Locks.  I then filed the knurled section on the barrel's back end so it slid in easier, then pulled the barrel back out, added a drop of gasket compound around the end, and slid it back in.  For less than $46 I have a little pumper that takes 5 shots clips and is accurate for what it is.

[mav72]

I'm glad it worked out. I couldn't believe how good my 760 got after I worked on mine. It had me questioning what was going on. Those clips are a hoot.

[anti-squirrel]

Here's the actual results from 15 yards with RWS Mesiterkugeln 7.0 Wadcutters.  Used the CVLife scope I got yesterday.  I chose to sight in one mil-dot down from the crosshairs so I wouldn't run out of travel on the turret. 

I have several other pellets that likely shoot better, but I'd say this is a fair size group... and that's a 5 shot group.

[birdmove]

    Looks good to me!

[mav72]

Looking good. I like the looks of the gun too.

[N.E.Dan]

A lot of fun for me too. I followed an contributed to this thread a while back;
http://www.gatewaytoairguns.org/GTA/index.php?topic=111889.msg1115143#msg1115143

[pgritty]

Anti S, real nice work there. I have an old recruit that might need to have a rifled barrel added.

[rangerfredbob]

Pgritty, for the Recruit get the Powermaster 66 barrel, I did that to one and it worked out pretty good. If you really want to get some power out of it you could put a flat top piston and valve in it (same one as a 13XX), I did most of the mods to mine that are common and get 750fps on 10 pumps, and one shot at 750 and one at 500fps at 15 pumps... I know I could get more speed or even out the two shots with some hammer spring mods but I'm leaving it there for now... The mods I did to mine are flat top piston and valve, pinned the valve with a screw so there's more than the indent holding it in place, installed a pin in the piston face and drilled out the intake port a touch to take up some head space, I believe everything else in the powerplant is stock. For the trigger, if you take a screwdriver to the front leg of the trigger spring with everything installed and push it down in the middle some that will reduce the trigger pull, if you leave everything assembled in the left receiver half you can pull it to test it out.

[anti-squirrel]

Dan, I like the looks of that camo 760- looks sharp!

I'm experiencing a lot of flex between the clamshells along the top of the "stock" section.  My inherent laziness will probably result in some travesty of duct tape to provide temporary relief.  I'm considering a tear-down for a flat-top piston, but a part of me wants to start searching for a metal-receiver 760 and add wood furniture.  That replacement barrel is accurate enough to hold sub-inch accuracy at 15 yards with gusting winds ranging from 10 to 20 knots- I was astounded I was even grouping as I could feel the wind buffet me as I tried holding a steady aim.  I definitely need to add some weight as this thing is just too light.

And of course, then there's going the Daisy 880 or 901 route for another pumper.

[mav72]

I'm considering a tear-down for a flat-top piston, but a part of me wants to start searching for a metal-receiver 760 and add wood furniture.  That replacement barrel is accurate enough to hold sub-inch accuracy at 15 yards with gusting winds ranging from 10 to 20 knots- I was astounded I was even grouping as I could feel the wind buffet me as I tried holding a steady aim.  I definitely need to add some weight as this thing is just too light.

lol A metal reciever 760 is the next step. I want to get another one too. I'd start with a whole nother gun because you're going to miss those clips. I just converted a 66 to a metal reciever.

The plastic 760s ARE kind of light. I've experienced the same thing with winds.

About the Daisys, in the end you're going to want an older metal reciever Daisy.

[pgritty]

Rangerfredbob Is the crosman 66 barrel available from crosman or would I need to find a beater to get a barrel? flat top piston and valve, trigger mod I see that I have my work cut out for me doing searches to break down the things that are common to you guys, but leave us newbies in the dust. lol Thanks for the input and I will get busy as time allows.
Pat

[rangerfredbob]

I ordered a 66 barrel a couple years ago from Crosman for $9 and change, so it used to be available, haven't tried recently but need to make a parts order soon...

No need to dig all the way in all at once... I did start in this mess around 6 years ago but I do everything on a budget... I've bought very few aftermarket parts other than from Crosman themselves, since I have a metal lathe I have made all my own flat top pistons and valves. A lot of people even without lathes flat top their own valves and buy a piston, it can be done carefully with a dremel and file

[Matchstickshooter]

MK177-010 is the number for a rifled barrel from Crosman! I just got one to redo a 760C.
It's a drop in.     16.75 inches long
 $9 and change.

[anti-squirrel]

MK177-010 is the number for a rifled barrel from Crosman! I just got one to redo a 760C.
It's a drop in.     16.75 inches long
 $9 and change.

Yep- I posted that about halfway down the beginning of this thread---  I ordered 2 barrels and 2 supports and it still came to only $25-ish.  First barrel shot well, second shoots amazing.  I was printing 1/2" groups at 15 yards in 20 knot winds earlier today with JSB Ultra Shocks.   When I get back from this next trip for work I'll run a bunch of pellets over the chrono at 8 and 10 pumps- would be nice to know the exact power.  About the JSB Ultra Shocks: was really surprised how well they flew given the shape of them.  The best pellets for this barrel are Norica Domes; for the other barrel, a toss-up between JSB Exact Heavies and RWS Meisterkugeln WCs, though several others shot well including the Skenco Ultrashocks which are slightly lighter than the JSBs.  Just proves it is still worth testing no matter what.

For the money, it's a great upgrade if you stick to pellets.  But I'm of the opinion  pumpers are for pellets and leave the BBs for smoothbores.

[birdmove]

    As to the breaking stock issues on these, and some other plastic pump up air guns, since I had read about these problems, I, from day one, find a way to pump them up with no strain on the stocks. I see Youtube videos all the time showing the gun owner putting 10 pumps into their air rifles, and pumping them like it's an Olympic event. Not the way to make them last. I find a way to use my right hand (non pumping hand) to support the gun on the top side at or near the base of where the barrel meets the receiver, as I slowly use my left for pumping. I normally put the butt of the gun on my leg, with the muzzle pointing straight up, and the pump handle facing left. I shoot the following multi pumpers on a regular basis: Crosman 760, Model 66, 1377 and 1322 carbines, Remington Airmaster 77 (older model-metal receiver), Daisy Model 880, and soon, a new Umarex APX NXG.
    I wasn't going to buy the Umarex, due to health issues, but finally decided to do it, as the amount of enjoyment I get shooting these airguns gives me much in return for the money involved.

[REDHAWK44]

LOL.... Betty Lou and I were walking thru Walmart one day and I spotted a whole pallet of them in the feature aisle. I can't remember ( there is a post here somewhere ) I think I paid like $24? each for them? Anyhow, Brought them home and opened the boxes. Scoped em up, if that's what you call that thing that came with them. I think we shot 1 clip each?  Boxed them up and they went back where they came from. Come on Crosman... please stop screwing up all my childhood memories. Just bring one back with the qualities of yesterday. Ya'll messed up Sheridan, then ya wacked Benjamin and now your killing your own stuff. Not everyone wants a CCS or a Disco. Some of us want a quality wood and metal pumper... don't you dare suggest the new 397/392. I mean... you did come close.... until you got to the trigger. And to beat all, you took a Chinese knock off of a Daisy Red Ryder and called it a Sheridan. Ok, I'm done.

Ive got a Crosman Summit Ranger being delivered tomorrow. Im going to give Crosman a chance with this NP2 Made in the USA it also has metel sights instead of plastic. We shall see how this Crosman performs and I will keep you posted as I go along.

[birdmove]

    My laughingly bad Crosman 760, gave me a nice 5 shot 1/4" group yesterday off a rest. True, it was only 7 yards/21 feet. Pellet was the Crosman Premier Super Match wad cutter (as always). I tried Destroyer EX's, and Gamo Match wad cutters too, but they just could not compete with the Premiers. Eight pumps. BB's at 7 yards? 1" to 1.5". Sometimes a wild flyer in the bunch.

   So, I'd say, mine's not "laughingly bad". More like "Occasionally irritating".

[Dave180]

I then filed the knurled section on the barrel's back end so it slid in easier, then pulled the barrel back out, added a drop of gasket compound around the end, and slid it back in.  For less than $46 I have a little pumper that takes 5 shots clips and is accurate for what it is.

Which type of gasket compound did you use for the barrel going into the plastic barrel support? 

[anti-squirrel]

I then filed the knurled section on the barrel's back end so it slid in easier, then pulled the barrel back out, added a drop of gasket compound around the end, and slid it back in.  For less than $46 I have a little pumper that takes 5 shots clips and is accurate for what it is.

Which type of gasket compound did you use for the barrel going into the plastic barrel support?

Regular old Permatex Ultrablack RTV.

Sorry for the delay.