Manufacturers such as defiance bat kelby and others offer actions manufactured from either stainless steel or chrome moly or aluminum.
Chrome moly vs stainless steel actions.
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Given a choice between a chrome moly and a stainless i d choose stainless for the increased life of the barrel and increased resistance to corrosion plus easier cleaning.
On a match barrel it s not even a question you just don t see standard carbon steel match barrels on the line much these days everything is stainless.
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Chromium molybdenum specifically means a family of steel alloys that when used for hand tools have a moderate amount of carbon often around 0 4 to 0 5 around 1 chromium around 0 15 to 0 20 molybdenum and a range of other alloying elements.
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Chrome moly or stainless steel.
In evaluating an action is there any benefit of one action receiver material over another.
The important characteristics of the steel are its machinability longevity and strength.
Most often this would be either a chrome moly steel such as 4140 or a stainless steel such as type 416.
Stainless is easier to machine because it is slightly softer.
It is also easier to apply a fine hand lapped finish to a stainless bore.
This is a discussion on chrome moly or stainless steel within the general discussion forums part of the misc.
Let me be more specific.
Other considerations are secondary such as its ability to be blued or resistance to corrosion.
That said chrome moly barrels can be just as accurate when made correctly and there is evidence a chrome moly barrel will hold its accuracy longer than a stainless barrel.