N/A Has there ever been a multi pump air pistol that can achieve 700+ fps in .22 caliber ?

[airgunner53]

Multi pump and fast loading bolt action mags don't seem to go together for me. Being able to quickly chamber the next round and then still have to pump 8-10 times doesn't get you to a follow up shot much faster

I agree with this to a degree as there is no such thing as a fast followup shot with a multipump unless it's an ACP which is a different beast or a self contained pcp like the seneca aspen or the fx indy. Might help with fumbling in the cold or at night but still need to pump it.

 

[Hold_Over]

I wonder if anyone has been able to modify the crosman 1322 , so it can achieve 600-700 fps with 10-15 pumps using a 12.9 Gr pellet ?

Years ago, I did modify my 1377 and was able to get it to shoot 7.9 Gr pellets around 580+ fps. I modified the air chamber/ valve and put a longer barrel on it.

My current 1322 build sends a 14.3 g cphp downrange at 488 with 8 pumps. Around 530 fps with 10 pumps. That is with stock barrel. A longer barrel and the lighter 12.9 g pellets you mention it would hit that 600+ mark and then some I am sure

 

[subscriber]

I wonder why , no company, has come out with a multi pump air pistol, capable of 700+ fps in .22 caliber

A lack of leverage, probably.

 

[Dr. Kralenstein]

I've had a couple 10" barreled 2400s I converted to pcp that did into the 20 fpe range. I used a hand pump, does that count as a multi pump?

 

[JDGriz]

A lack of leverage, probably.

It would also need to be very low valve volume and very high pressure, to up the force of each pump stroke.

Probably better off with a crossbow pistol:

BAT Reverse Draw Compound Self-Cocking Pistol Crossbow - 420fps & 150lbs - BALLISTA

BALLISTA BAT Reverse Crossbow: Fastest 420fps self-cocking pistol crossbow, 150lbs power, 3lbs. World's lightest, 320 FPS, low friction, unique design.

ballista.co

(a.k.a. X-Bow FMA Supersonic REV)
These are about 30 fpe but obviously much slower than a pellet.

 

[airgunner53]

I believe the gun you are looking for has been attempted but not the fps you are looking for. Claims of 450-550 fps by different reviews, 10 shot magazine, collapse stock, and used to go for about $75. Something like this would be nice but in the fps you are looking for. BAM B5-10. I've always wanted one.