My GAMO Urban

[anti-squirrel]

Thanks for sharing, Bill

I still consider the Gamo Urban one of the absolute best starting points for PCP-on-a-budget.  I haven't heard too much noise about shoddy barrels on these.

Some day I may end up with one.  My next PCP will likely be a Vectis, though- unless we see some more lever-action open-sight PCPs.

[avator]

Thanks for the explanation James...


Peter, as much as I dislike the tactical lock I am strangely attracted to the NOTOS. If I were of the mindset to purchase another airgun it might be hard to resist.

[3crows]

Though possible it would take some effort to make an adjustable striker hammer for the Urban. Here is the basic layout. This borrowed from an article somewhere:



That long protrusion is the striker and the hammer is up inside that sleeve assembly. The striker/hammer are an integral piece with no adjustment of the striker accounted for. The MRod for comparison with adjustable striker hammer. I like the Urban TP and exhaust valve (knock off valve) design better than the MRod. Not sure if the O-ring on the poppet stem causes stiction or not, it never has seemed to with my rifles but that might be why Benjamin does not use a stem O-ring and just allows for some blow by leakage there.



You can see why the BStaley mod would not be applicable to the Urban in the same manner as the MRod.

[avator]

Yep, I see your point.

[avator]

I thought I was going to feel good enough to get out and dig into the Urban today but as the morning progressed I felt worse. Unless I feel better by this afternoon the Urban will have to wait. I don't have much patience for these things when I don't feel good. Best I could do was to go out and top the gun off. I may run another string over the chrono but I doubt I get much farther than that today.

[EdinGa]

I can't find my Urban shot strings anywhere. I suspect they're on the Caldwell app on one of my old phones. I did find an old post here where I said I was getting 10 consistent shots from 2900 to 2200 psi at 28 fpe with 30 grain BBTs. That was at 16 turns on the hammer spring.

[anti-squirrel]

Hope ya feel better, Bill

I'm with you on both accounts of the Notos- I'm not into Tacticool lead-throwers, whether PB or airgun.  But I am finding myself looking at the Notos... Yet I have  Leshiy Classic which is kind of like the Cadillac Notos, in single-shot form.  And I like the Vectis, a tactical-looking lever-action.

I'm actually glad we didn't have all the choices now we did in 2019, or I'd probably have missed out on owning a Leshiy.  Sooooo many good choices out there!  I missed out on a Sumatra carbine when they were everywhere and there seemed to be a lot on the used market.  Now?  Not so much.  There's always the Eagle Claw, but the Sumatra was Just Right.

[avator]

Morning guys...
I woke up this morning and got my coffee then sat down to review this thread.
As I mentioned before, I like restricting mods on most of my guns to reversible changes.
(That does not include the cutting and crowning barrels)
I am also not equipped or knowledgeable enough to do machining to make beneficial changes.
Plus, I like cheap so buying expensive after market parts or having someone make the changes for me is also out.
Looks like, with this gun, those constraints leave me with hammer spring trims, replacement and adjustments pretty much my only options given the information supplied by James (thanks for your input).
So that's what I'll focus on today. It may not prove to be any better than the current setting. Keep in mind, my goal is not increasing power. The goal would be increasing shot count without affecting accuracy and a low ES bell curve.

[sculbert1]

I never paid much mind to the Urban/Buccaneer until I bought the Buc from you.  I've really enjoyed that gun and is one of my "go to" guns when I want to punch paper and not refill so often.  It's a 177 of course, but it gives me 50 shots above 20ft/lbs and is laser accurate.  What's not to love!!

[avator]

Yep, it was/is a great gun but I I have others and it needed more use than I was giving it. I'm glad you got it and are enjoying it.
Looking at that string, you could probably get another mag or 2 out of it. Maybe even more.

[avator]

Update...
I did get back out to the Red Shed early this afternoon. I pulled the stock and the cap off the Urban. I turned the adjustment screw counter clockwise 2 full turn and put it back together.
I topped the gun off at the preset 3200 psi with the CS3.
I loaded a 10 shot mag with JTS 18.1 domes and a mag with Crosman 14.3 Ultra mags. And sat down at the shooting window.
The reason I did this instead of going to the chrono is as I've said a few times already... I'm not concerned with power. My goal is shot count and accuracy. I also wanted to be sure I wasn't wasting air with hammer bounce.
At just beyond 30yds I was able to keep pellets of like weights within 3/8" for 10 shots. So far I'm happy.
Tomorrow afternoon, after our monthly grocery run, I'll top the gun back off and shoot a chrono string.
I have 1 factory mag and 2 after market mags at 10 shots each. If I can get 3 mags (30 shots) of consistently accurate shots at 30 - 35 yards I'll call this a success and log it in the journal.
I'll post my numbers and accuracy target tomorrow.

[naptemp]

A few months ago I bought my second Gamo Urban, since I sold a leaking older one (purchased around 2018).
The new one, shoots really well out of the box, 40 shots in the 815-850 FPS range with CPHP, from about 3100-3200 PSI to about 1200-1400 PSI (using the airgun's gauge).
This might be the first air gun I did not have to mess with to have it shoot well.

[avator]

That's impressive.. I would like to see the shot string on that one.

[avator]

Sorry about the late follow up on this thread...

I haven't gone back over the thread yet to do any comparison so I'm gonna throw this morning's chrono string up after the 2 counter clockwise turns on the hammer spring. Then I'll compare and see what, if any affect it may have had.

[avator]

Looks like I gained 6 shots and lost 40fps on the average.

I'm not completely disappointed in that mainly because I maintained accuracy. I can squeeze 2 more shots and get 3 full mags, which is how many mags I have. I like tuning my guns so a full fill aligns with the number of mags I have because I can fill gun, load mags, shoot then rinse and repeat.
Bare in mind.. I was only filling this gun to between 3100 and 3200. It's a 3365 max fill gun. Pretty sure those extra 200 psi would make things look a little better.

I think we're good here.

[avator]

Now I don't know about where you guys live but here in lower Alabama where I live I can still walk into the local Walmart and walk out with the CPUM 14.3 500ct tins for $7 and change. I just checked 3 days ago when we were there.
That makes the GAMO Urban a very affordable and accurate plinker/pester for me.