Re: manners mini chassis
Bedding ASSURES everything is perfect.
You can argue that the chassis is perfect, the action is perfect, and the alignment of said parts is perfect. And hope that it all is.
Or you can bed it and be SURE everything is stress free, pointing straight forward down your barrel channel. Not to mention that its no longer a V with only two lines of contact. Bedding also spreads the pressure out over the entire unserside of the action, all around it. Rather than two lines down the sides like aluminum Vs do.
Correct bedding can not be matched in my opinion.
Will it shoot fine without bedding in an AICS or Manners mini chassis? Ya 99+% of the time. But aren't you striving for perfection?