For cheapo and accurate... It's a tough call, but with a nineball bucking and a tm precision chamber you should be shooting g&g 0.3g bbs to chest 9/10 times from 30 yards. 
Did bar 10 shoot around 400 fps out the box? If it shoots 300 fps, then i recommend m120 spring, you are really going to want that 70 fps increase. You can run it for a summer and then trigger sear is going to crack, by that time you should have enough money for deepfire searset.
Did bar 10 shoot around 400 fps out the box? If it shoots 300 fps, then i recommend m120 spring, you are really going to want that 70 fps increase. You can run it for a summer and then trigger sear is going to crack, by that time you should have enough money for deepfire searset.