Which firing Pin assmbly for Rem 700 L.A.

[fe1]

I'm replacing the F.P. assembly on a Rem 700 L.A. in 7mm RemMag.Which firing pin assembly would be Best?
Original OEM, Aluminum,or Fluted steel? And reasons why.
Seems I've read or heard somewhere that one variant has problems freezing up in cold weather.
T.I.A.

 

[LHSmith]

Depends what type of shooting you do.......off-hand you want one that offers fast locktime....bench it's hard to improve on a Daryl Holland upgrade. Actually if it's an older 700 , simply replacing the FP spring with a top quality Brownells spring and polishing the FP pin assembly may be the best choice.