Chassis bedding question

[Pulpit]

New to the tactical precision obsession...

When dealing with a chassis system, such as a McRee, AICS, etc. does one just drop the barreled action in and go, or do they need to be bedded like your "normal" stocks?

I apologize for the ridiculosity of the question, but some of the chassis have really grown on me for a future build.

Thank you.

 

[tmxring]

I always drop in and go with the manners chassis's. Haven't seen one that needed bedding yet. Bedding the chassis really defeats the luxury of the system.

 

[ballistic1]

I believe the intended purpose and idea behind the chassis platform is to
be a drop in and go platform as well.

However, GAP built one of my 308's into an Aics, and they did indeed bed
the action to the chassis.

So, with said, the function of a drop in/ bolt in chassis and go will
provide a very good platform, but having one bedded must be even better.

I also have other builds set up in chassis systems or stocks with mini chassis that
are not bedded, and they also deliver outstanding accuracy.

 

[Pulpit]

Awesome! That makes perfect sense, and I appreciate the info.

 

[HumbleEinstein]

Not to hijack, but...

Does the drop in process take anything away from the integrity of the system, in terms of accuracy, when compared to a bedded system?

 

[Pulpit]

No a hijack at all. I'm also curious to find out.

 

[OptedOut]

In the systems I am familiar with (Saber-Forsst and XLR) it would be detrimental to "bed" those chassis. It would result in a loss of accuracy. One of the main theory's behind chassis design is to have more contact of the receiver and 'stock' (bottom and sides) over that of synthetic and wood stocks that inherently have more spaces (area) of less contact.

Think of two pieces of Plano-plained glass laying together...then think of the two pieces with oil (or even glue or some compound) between them)...no go.

Also remember all bedding compounds will break down in time (ask any top competition shooter), a chassis will not.

 

[Alpine Gunworks]

Most actions I'm familiar with use 1/4-28 screws and the recommended torque is 72 in-lbs. If you calculate a simple clamping force each bolt is clamping your action to your chassis/stock with 1440 lbs of force. In other words your action has about 3000 lbs of clamping force on it. When you consider recoil of a 10lb 243 rifle or example recoil energy is only about 7lbs, so bedding is really not needed. Having your action contact your chassis in multiple places isn't really necessary either. In most cases you don't even need a recoil lug.