Ok question for all of you, after A LOT of research for finding an AFFORDABLE short action cartridge that can still send bullets at a respectable to high velocity for the next build. Not sure if it would be able to fit in a short action or if it is a viable option, thus the reason I'm here asking. The 6.5 prc came out recently and while I kind of want one....it still don't seem to pop out like say the 7saum, 6.5saum or the Sherman Shorts as far as the velocities I would think it should be able to be at and compete with those other a little better. The affordability and plentifulness of the brass of the saum and Sherman are a turn off. If the 300 RCM can get to 2800-2950fps according to my Hornady edition 10 reloading book with 165-168gr bullets why can't the 6.5prc reach that and then some with 147's? Is it because the long 6.5 bullets extend into the case too much? What kind of ballistics would a 7mm bullet in the 300RCM generate? Would it not be a great all around short mag on a cheaper side of things? According to the Hodgdon reloading data the 6.5PRC only gets 3100fps+- some fps with 120gr bullets?? What am I missing here?