Chrome moly vs stainless action body

[bodhisafa]

Would like to have a discussion on the difference between the two steel materials (advantage / disadvantage ).

I would like to purchase a TL 3 or an origin long action for a 25 saum / 7-300 prc switch barrel build.

I am familiar with the difference between the two receivers however I am not sure why the metal used is difference and which one would be stronger or better for my purpose

 

[King_beardsly]

I’ve got both and they are both awesome. I would think the TL3 would be a better choose if you’re going to be running a switch barrel due to the integrated lug. Now are far as metallurgy chrome moly steel is technically stronger from a strength to weight stand point but it’s sorta a mute point

 

[JMGlasgow]

The Defiance Deviant has an integrated lug too. Stainless action, chromoly bolt. And the scope mount is part of the receiver.

 

[Ledzep]

As far as strength goes, I was going to write a novel on metallurgy but I've decided not to.

Cliffs notes:
IN GENERAL, you can get harder/stronger alloy or plain carbon steel parts than stainless steel. DISCLAIMER! : heat treat on most steels can make properties overlap considerably. The type of steel means nothing as far as hardness/strength/toughness goes without also knowing the heat treat.

So 4140 can ultimately be stronger than 416SS by quite a bit... it can also be weaker... depends on the heat treat. Bighorn gets their 416 pretty hard/strong. Also strength and ductility fight one another so there's a tradeoff there. Stronger/harder isn't always better; you can get to the point that things are uselessly brittle but super hard/strong.


Moral of the story is that either of them is going to be plenty strong enough unless you do something extremely negligent. Figure there are guys out there chambering up M98 Mausers made in the 1920's into all sorts of 55-65ksi cartridges with no ill effects. You don't need to worry about a new Bighorn.

eta: For a switch barrel rig, I'd go TL3 just for the integral lug. One less potential headache.