Crosman 2100 vs Daisy 901 or 880

[Big Bore Bart]

Though that is just my opinion on that one, based on my work with Crosman MSPs.   I could be wrong, there may be a 2100 that can beat the power of a 66 shooting 923FPS with Crosman Premier 7.9 grains.

    How many pumps does it take to get to 923fps in your 66?     I ask because I get 855fps at 14 pumps with my 766.

[DavidS]

Though that is just my opinion on that one, based on my work with Crosman MSPs.   I could be wrong, there may be a 2100 that can beat the power of a 66 shooting 923FPS with Crosman Premier 7.9 grains.

    How many pumps does it take to get to 923fps in your 66?     I ask because I get 855fps at 14 pumps with my 766.

Takes 19 pumps  Though I usually only pump 8 times giving around 803FPS, the gains per pump decrease as you go up with any of these.  I get right around 850 out of 12 pumps so pretty close to where you are with your 766.

[Bryan Heimann]

If you are talking about an older gun, I think the 2100 is superior.  New guns, I think the 880 is a better performer out of the box but also built more flimsy with so much plastic- even the reciever.  The 2100 is not built to the same specs as the guns of old but they are highly moddable and respond well to tuning.  If you like to tinker you could potentially wring some pretty good power and accuracy out of a 2100- more than you'll ever get out of the 880. 

[K.O.]

Though that is just my opinion on that one, based on my work with Crosman MSPs.   I could be wrong, there may be a 2100 that can beat the power of a 66 shooting 923FPS with Crosman Premier 7.9 grains.

    How many pumps does it take to get to 923fps in your 66?     I ask because I get 855fps at 14 pumps with my 766.

Takes 19 pumps  Though I usually only pump 8 times giving around 803FPS, the gains per pump decrease as you go up with any of these.  I get right around 850 out of 12 pumps so pretty close to where you are with your 766.

Well with Big Bore Barts help I do have both of those beat fpe wise... at 17.4 with .25 H&N FFT 20.1g and we have not wrung every last bit

out of it yet I think we can get closer to 20 fpe.

But the only parts that are still 2100 are the pump tube, linkage, piston, modded exhaust portion of the valve and striker spring...

once I get another 2289 barrel band I can put it together as a .177 or .22 and see what it does and honestly I think it will be nasty fast.

Did I mention it still uses a pump cup and is not flat top...

The heart of the 2100/2200/766  does have the more potential than the 664gt/66 due to its longer stroke(higher potential compression ratio for a given valve volume and less pumps to get there)

 (what is the 66/664gt stroke have you measured I would like to lear all you are willing to share about the 66)

If I can figure out a way to extend the pump 2100 pump tube by .6" then I could use a full length bored out 760 nose and have much closer

to the valve volume a .25 needs(I need to look at compression ratio as  valve volume goes up though).

With the current valve (.3" longer check valve section made from a 760 nose) if we go all out I think we can get close to .16 ci for valve

volume and close to 700 fps with 20.1g .25 pellets,

as it is  at  about .1356 it would be great for .22 and .177

I got lucky and scored an new old stock 766/2200 piston made a big difference


Man now I want to build a few 13xxMLTs (Medium Length Tube) to go with my 13xxXLTs(eXtra  Long Tube)