Canadian Airgun Forum

I've done it with the M4-.177 and 760~ switched bbls.

The 760 is a much more stable platform for pumping than the M-4. Both guns use the same 5 shot harmonica manual magazine for pellets.

I've gotten very good accuracy, and acceptable power from the 760 with the M-4 bbl aboard. Well worth the effort...

-D.S.

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"Ain't no half-way"
-S.R.V.

Gravel still hasn't received the parts from Crosman USA, and as a result, my order hasn't been filled yet.... They said takes 6-8 weeks...

---argh

Hmmm, got a notice by email that they are shipping the parts this morning... Tracking number is not yet active on Canada post....

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Canada post says my item is out for delivery,.... [emoji16]

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Good news!

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Website: https://airgunarcheryfun.ca/

Not so good news.....

1.5 " group- 5 shots with rws hobby pellets.

6 pumps at about 38' rested and seated.

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Crosman bbls usually ship with a fair amount of preservatives packed into the bore.

Could be a lot of things. I'd try a bore cleaning first.

I have had less than stellar results with the hobbies in pumpers. I'd try something different in the way of pellets before writing off the bbl as a loss.

It may take a bit of shooting to get it to tighten up....

-D.S.

_________________
"Ain't no half-way"
-S.R.V.

I cleaned the barrel with some patches cut out of blue shop towel and cut to about 3/4"x1.5" in size. Sprayed with wd40.... 1st couple came out black, then clear, then I drew a dry one through...

I've only shot maybe 20 pellets since.... Still not great....

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You try other pellets? Maybe crosman wadcutters.

Bent barrels shipped out has happened to me - also to this guy https://www.youtube.com/watch?v=fjqD18qF6kM & some more if you Google..I didn't really count how man other's though.
Hope it is not your case...hard to tell from the exterior of the barrel though so have a look through the bore.
For me, Gravel were good at ensuring I got a proper one ... in case you didn't already know: https://store.gravelagency.com/gaen/rep ... osman.html

Hope I was of help.

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...but, could Harry Potter's stick part the sea ?

Sorry for dragging up an old thread.... Just a little update...

Air guns were put a way for quite a while, and I just got them out recently again....

My daisy 953 still shoots great, my Hammerli 850 shoots great but loud, and my Crosman 760 still wasn't consistent...

I perused the forums again and logged into the University of YouTube and researched my problem....

My rifled barrel should improve the accuracy, but it's not working...

Then I began to troubleshoot what could be wrong.... Everything on the gun is tight or recently tightened,... Then I diagnosed the barrel....

1st pic is how the muzzle barrel looked, and the 2nd pic is how the crown looks after some quick work with a Dremel and some rubbing compound and a brass screw.... #8 panhead is a bit large for the angle on my crown now....

3rd pic is the group at about 30' rested. 5 shots... Gun doesn't seem to discriminate between wadcutters or pointed or hollow point Crosman pellets....

4th pic is the groups semi rested against the door jamb before my diy crown job.

I'm happy with the performance now.... I'm planning on taking my 12 and 14yr old nephews plinking some pop cans when they are up at the cottage next week.... I can hit a pop can 5 times with the crappy 4x15 scope at 50ft semi rested.... Should be fun at 30-40'.

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