Did try a m110, the gear/motor didn't like it, so I put a m90. I am using a 7,4v lipo.
This gun is now smooth, a little low on range since I plays mostly field.
To put in a bigger spring, I would probably need new motor, gear and gear box.
My intention was to keep this one as a back-up/qcb gun and get already more powerful main gun.
So the question is more: would a tigh bore make a worth while amelioration on a 300fps gun playing field?
Money wise, I would like to keep this one low budget so I can get a ''dedicated'' field gun (I always like the wood finish)