You always want to be on the minimum side of the cylinder. Heavier ammo will need more air volume than the .20s they test cylinders with.
And a 120 spring will get you closest and potentially just a bit over 400.
You can add or lose 5-15fps by adding or removing the bearings on the spring guide and behind the piston head
Tamiya connectors suck.
Originally Posted by swatt13
i never understood why the oil refinery had a brothel... i never see them at the refineries i work at this is bull!