bchannell said:

You've got the idea, but as stated, when you find the peak or plateau, you then back down the hammer, 3-5% in velocity to get you on the knee. You can almost always hear your gun change it sound. When air is blowing out the barrel after the pellet leaves it will be loud and grouchy, but when you turn the hammer back, and reach the point you are no longer wasting air, it will quiet down to a pfffft!. It's harder to say than it is to hear. That sound is a good indication of efficiency.

A good example is the FX Impact. They have so many adjustments, that you can easily get a bit lost. It's easy to just start over. But when you get it right, the sound on mine changes dramatically, and I know, I'm there.

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Moe M. said:

Thanks for the reply, I wish you good luck with trying to up the velocity, so far I haven't talked to anyone that has tried to rebuild or tune one of the Bone collectors, I bought mine new about six years ago, my adult son is into air guns and he liked the looks of mine and bought the second generation Swarm Bone Collector, it shot ok but didn't deliver the promised velocity or accuracy advertised, so he traded it in at New England Air Guns for a PCP rifle.
One other friend on another air gun forum bought one and was disappointed with it's performance, when he sold it he mailed me a couple of his extra 10 shot magazines.
As I said I keep mine for pesting and small game hunting, at 17~18 fpe its plenty powerful enough for that use, it's not the most accurate air rifle I own but for anything 35 ysds. or under it's good enough, what does make it shine is the 10 shot magazine, in the woods hunting one magazine in the rifle and a spare in a pocket keep you from having to fumble with pellets with half frozen fingers or dropping a bunch of pellets on the ground.

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Airgun Al said:

My brand new Sumo logo is upside down!
Anyone else?
I wonder if it could be disassembled, and corrected?

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rangur1 said:

O.D. is 37.5mm , I.D. is 31.95mm.

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DevilsLuck said:

I had to do that when I ordered a bunch of 853s. I thought that was wierd as well. But the check was sent somewheres else. Not my local CMP.

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OC_ said:

I have a 357 bullpup and its an interesting gun. I have very few shots on mine but I would like to take a hog with it. As a first airgun for someone with powder burner experience, it will be ok, though, i dont think this gun is what you're looking for.
It is a very large, heavy gun and the power is no joke; especially if you got it with the high-power valve which gives it power knocking on the door of a 9mm pistol. You will get 5 or 6 shots with that valve. With the standard valve, maybe 10 shots.

The triggers on these are terrible. You will need to do a trigger job to get it acceptable. Luckily, AEA triggers are pretty easy to clean up.

I like to shoot long range (at least for an airgun) and 100 yards should be pretty easy to pull off. That said, i have not pushed mine past 50 yards yet. I have only shot hard-cast pistol ammo and haven't put any airgun specific ammo through it yet. The groups im getting with this pistol ammo is acceptable at 50 yards, but i dont think would work great much past that.

I dont think this is a good gun for you since it seems like you are looking for a light weight gun that can deliver quick follow up shots. This gun doesn't fulfill either of those. Its heavy, i dont think much lighter than your 223 setup (i should weigh mine) and cocking the gun is slow due to the position of the cocking handle and the massive weight of the spring. This gun was originally designed as a standard non-bullpup rifle, but then was adapted to a bullpup which places the charging handle in a sub-optimal position.

This gun would be good for sitting in a blind or in a tree and taking out one large target. If you can shoot it off a bench or table, even better.

Here is mine, I make a custom stock for it and it takes over a pound off the gun! I think the biggest downside to this gun is its heavy weight. If you are going deep into the woods and going to be carrying this, its going to get tiring pretty quick and you'll want to wear it on your back.

View attachment 517698

I need to say that many big-bore airguns do not provide the same experience that small-bore airguns do. Small bore airguns provide a comfortable, quiet, and cheap shooting experience that I think is what we enjoy about them. Big sbore airguns are generally none of those things and are more of a tool to get game.

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UDABEGGER said:

To you guys shooting 700 mm .22 cal with the stx heavy barrel 1 in 16 twist . How light of a slug can you shoot with great accuracy . Thanks

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BigBadSquid said:

Sorry, would like to be able to help but .25 calibre like hen's teeth here in the UK and don't think I'd even be able to import a .35 much less get ammo for it.. Good luck though.

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MongooseV8 said:

I have a Gamo Urban, a Coyote in 22Cal, a Coyote in 177Cal, and a BSA Buccaneer in 22Cal. I can verify the mags fit and feed in all of them. They are pretty much the same rifle, just in a different configuration. I have taken them all completely apart and everything is interchangeable.

Gamo unfortunately does not have a good reputation for supplying spare parts to the US or anywhere really. Pretty much the only things you can get is what you will find on sites like:

Gamo - Bagnall and Kirkwood Airgun Spares

spares.bagnallandkirkwood.co.uk

Choose Your Model | Gamo Rifle| Airgunspares & The Countrystore Gunshop

Airgunspares & The Countrystore Gunshop. Gun spares for hundreds of airguns, no matter how rare.

www.airgunspares.com

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beerthief said:

Very Nice project .

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Bandito said:

Sounds like you got the data right from the horse's mouth. Good stuff to remember. Thanks and Be Well Brothers, Bandito.

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MrP said:

Now that is a good reactive target!

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