Airgun Technologies U2 choices

microtus said:

My first SS check hit the bank today and I'm treating myself to a green laminate Uragan 2 from Tony. I prefer the looks of the 600 v the 700 but worry about giving up too much speed with the shorter barrel. Is it realistic to obtain mid to upper 900's with a 25-28g slug out of the 600 barrel? Anybody buy the 600 or 700 and wish they had gone the other route and why?

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I traded my huben k1 for the U2 700, I love it, but I'm currently trying to sell it just so I can downsize on the length. I got mine shooting 25gr H&N HP2 slugs between 935 and 950, the regulator sits at 125 for that speed out of mine, getting around 120-130 shots. I've turned mine up as high as 66fpe or 34gr going 940. I still had plenty of regulator to mess with and had done no hammer spring or valve adjustment. Also I was still getting around 59 shots with that tune. The 600mm would still have more than enough juice for what you're looking for.

I watched African air ordinance on YouTube shoot 40 gr slugs at 1000 fps out of the 700. The 600 should do what you want with room to spare.

Trucker3573 said:

I watched African air ordinance on YouTube shoot 40 gr slugs at 1000 fps out of the 700. The 600 should do what you want with room to spare.

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He put his own AAO kit in it though. Without it, he was definitely not able to reach that.

JaceSpace1369 said:

He put his own AAO kit in it though. Without it, he was definitely not able to reach that.

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Ah ok. Didn’t realize that

Trucker3573 said:

Ah ok. Didn’t realize that

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No worries!

microtus said:

The shorter barrel won, just placed my order for a 600mm Green laminate in .22. If he can tune it to 950 with a 28g Zan, great, if not I'll take what I can get. Ordered some .217 Zans to go with it. I'll try them with fingers crossed before ordering sample packs.

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I would suggest h&n hp2 sample packs in 217&218 . My u2 700 likes 218