Does the bolt assembly on the M1999 field strip easily and all the way, as on the Mauser, or partially and with a bit of hassle, as with a Remington?

It's a cross between a M-70 and a M-98. You can learn to do it thirty seconds.......which is twice as long as it takes to do it.

Learning is not at problem. Possibility is. Never tried a Winchester: a mauser is easy and a remington is a royal pain. "Don't disassemble past opening the bolt"? Wtf?

Kevral,
As with a Winchester you cock the bolt, put the safety in the middle position, remove the bolt from the receiver and you'll see a little button on the shroud, push this button in and start turning. Remember "NOT" to move the safety after this as it makes it very difficult to reinstall the firing pin, shroud assembly again.

Thanks, Dan!
Once you have the firing pin assembly separated from the bolt body, can you then take it further apart like on a Mauser, i.e. separate firing pin and spring?

kevral---

The M-99 has a "C" clip that engages with the firing pin much like a post '64 M-70. The firing pin spring is devilishly strong but the whole works can be done by hand......if you have strong and tough fingers. I hold two pieces of thin plate in the vice jaws with a gap between slightly bigger than the dia. of the pin. That makes it less painful.

Jack is absolutely right, our firing pin spring is about 23 1/2 pounds which is a lot stiffer than the 19 pound spring that is used in the Winchesters. Thanks Jack for the imput. Dan

You can also take a piece of sheet metal about 3/16" to 1/4" thick and attach it to your bench. Then cut out a notch at the top that will just fit the firing pin through. Using this you can push against the firing pin from the cocking piece end and slip the c ring off easily and remove the tension with the help of your body weight. And reinstall in the reverse order. Very simple process and cheap way to build your own removal device. It should work on some other rifles too.