Re: tubb firing pin and cocking piece...
Ripper, for a 700 even? The locktime reduction for an M70 is substantially reduced, but for a Rem 700, which already has pretty fast lock time, I can't see the difference being measurable. But I haven't tried it.
I suck at positional shooting. I think practice will help me at this point more than a gadget, but anything for a little edge.