Should I bed into my AICS?

[X-NewYawker]

That is correct.
Reality rarely matches promises.

We have to talk. I've had the hankering for a legit old school M40

[buffybuster]

Theoretically the action is perfectly round and straight.

Theoretically the chassis is machined perfectly straight and the recoil lug shoulder lines up perfectly.

Theoretically the chassis system will eliminate the necessity of bedding the action.

Reality M700 actions are usually slightly banana shaped.

Reality the recoil should doesn't quite line up and there is a tiny gap.

Reality is the chassis works most of the time but sometimes benefit from a skim bed.

[6mmintl]

They start off round but they are heat treated after they are OD ground and they warp. Many aluminum blocks need a skim coat to help them match the contour of the Rem action.

I agree, a skim coat will ensure absolute consistent contact of the receiver which is usually out of round and or different diameters end to end.

Your trying to squeeze maximum accuracy out of your rifle by putting it in this chassis, eliminate ALL possible accuracy issues by skim bedding.