i have a large selection of pellet guns but would like to get some more shooting time with my crossman 1077 but with it being around zero every day kinda hard to shoot c02 .i have tried warming carts up by woodstove then keep in pocket till needed it works but not thar great i read some where some one put one of those bagged hand warmers under the cart on out side of gun could velcro or just tape on i dont care what it looks like just want to be able shoot longer if no one replys i might try it if they do would like to know if any has tried this or has a better idea thank you