Quote Originally Posted by poil27 View Post
the real problem with co2 is the winther co2 realy don't like cold. i'll rather use hpa. as for the 13 ci canister it's on the heavy side , and all in front of the gun making it not as balanced as the 78 or the disco for that mather.

the disco and the 78 can be bulk fill so there is no need for the 13 ci canister of the 79 realy (my 2 cents)
Just to add a quick note to this, CO2 is a bit temperature fussy as poil27 mentioned - you tend to need to space your shots as opposed to shooting like a maniac and shooting in winter gets... well, cold... er... HPA in winter, CO2 in summer is a good bet.
I would suggest that you look into small CO2 tanks like 9 or 4 oz since a 4oz will give you about 10x the capacity of a 12g co2 - plus, it takes more shots to drop the temperature the same degree.

I would also suggest a buddy bottle if you use HPA... Being able to top up a rifle without lugging around a pump or a scuba tank has advantages.

Oh... and fill SLOW.

Cheers!