Hello Mr. Mist,
I am wondering if you would put 1322 into your picking list?? Actually the biggest difference between 2240 and 1377 is not the pumping or not, and it should be the different cal setting of .22 and .177, right??
I voted on the 2240 before, but it looks I will change my mind to the 1322 as I started to find the benefit of the non-CO2 pumping action!
As said, you only need to grab your gun and a tin of pellet then you can enjoy your fun as long as you want and can stop at any time! It's a true peace of mind... I don't need to worry about "I need to shoot some more in order to finish the remained CO2", or "it's that ok to keep the gun charged for some days" etc any more...
And I have to agree, the pumper can help my work out on the arms~

I change my arms to pump my 1322 at the same time having the shooting fun, so I can play longer until both my arms get tired and can see the result after that~ LOL