I recently purchased a Callahan Speedlock assembely through Midway for my Rem 700 VLS and had a question concerning installation. The old firing pin/spring etc has a large amount of a grey colored grease covering it and I need to know if I can just put some type of oil on the new assembely or will I need to grease it. Also, if I need to reapply the grease, what type will I need to get? Thanks for the help.

Welcome to the board.
I would say gun oil would be prefered here. Grease will retard operation of all moving parts of the bolt. Gets worse in cold weather.
Cheezywan

What he said.

Welcome, let us know if that assembly helped on your 700.

No -- I repeat, NO,NO,NO -- grease! A very light application of oil is all that's needed. Grease will not only thicken and slow things down in cold weather, but over time will harden and collect and hold all manner of crud. Bone-dry is better than grease. The only spot I will use just a small dab of grease is on the rear of the locking lugs, and not even there in cold weather or very dusty conditions.

All good advice above.

This is a case of none is better than plenty. When reassemblying my bolt parts, only use a cloth with a very light amount of oil on it to wipe the parts down with and then reassemble. This has worked for many years of hunting and use in both extremely hot and cold conditions.

Thanks for the quick responses. I'll let you know how it works out. Matt

What does the group here think about using a pure dry graphite in the bolt assy??

I think graphite would be fine for a very cold weather hunt or in a very dusty envirnment for a limited amount of shooting between cleaning.
I see it as being "similar" to running a internal combustion engine without oil. It will run ok short term.
Oil will capture and hold dust. Graphite is dust. Of the two oil is a better lubricant so long as it does not freeze and retard the movement of critical parts.
Cheezywan

Edit for more thoughts.

A Remington 700 bolt rifle is not a high RPM piece of equiptment. Could very well run it dry under adverse conditions with little trouble. Oil will protect metal from oxidation and friction for long term use.
Cheezywan

I also think graphite would be OK for cold weather use. I prefer to clean all parts, soke them with Breakfree and wipe them dry. I feel this gives me some lubrication and corrosion protection without enough residual to freeze. This method has kept my 12ga auto shootin in below freezing temperatures without a snag. Back to the graphite, as long as you clean it before and after use, I can't see it would cause any problem and might help slick things up a bit.

Thanks guys

nate