I've played with the M150 in the PTW several times. Many others out west here have as well. Gas M700s at 600+ fps (with 0.20g) are not uncommon either.
It's been my experience over the years that more lost teeth, bleeders and other projectile injuries have occurred from sub-300 fps guns than all others. Due to the numbers of them, plus the inexperience of the player plus poor shooting practices like blind-firing and buck fever.
A hot gun in the hands of an experienced player is by far safer than a stock Marui in the hands of a new guy.
Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.