Here is a link to what Quackenbush did. Ant the fps are quite impressive. I am in Eric. Make it happen!
http://www.quackenbushairguns.com/2240.html
Bartman
Here is a link to what Quackenbush did. Ant the fps are quite impressive. I am in Eric. Make it happen!
http://www.quackenbushairguns.com/2240.html
Bartman
Damn! ( in case anyboy figues TL/DR)
Quackenbush-modified Crosman 2240 - .25 caliber
61°F - Muzzle at start screen - 10 shots - 10-second interval between shots
Diana Magnum pellets, 20 grains
High - 456 f.p.s.
Low - 435 f.p.s.
Average - 441 f.p.s.
Extreme spread - 21 f.p.s.
Standard deviation - 6 f.p.s.
Muzzle energy - 8.64 ft.-lbs.
30-35 good shots from a single powerlet,
I might need to get a 2240.... and a case of those powerlets and a few tins of pellets......
It is 0.50" with a slight bit of runout- ranges from 0.495" to 0.5015" on the points I took measurements with the 'ol CrapTire digital calipers...
I'd say I care- but I'd probably be lying...
How long is the .25 cal MRod barrel?.... what machining has been done to it (O-ring grooves, transfer ports, etc.) that would have to be removed.... ie how much is left?.... Lastly, do you know if they are choked?....
Bob
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal: Too many to count!
According to a quick google...the barrel is listed as 20" and choked. Just looking at pictures of the complete rifle, looks like no more than 2 1/2-3" length would be lost in a worst case scenario.
Al
Last edited by jgoodz420; Jun 13 2012 at 03:05 PM.
"Just because you can, doesn't mean you should..."