Well, unless you want to go crazy with the round pressure and exceed the SAAMI and CIP standards, any post 49 M98, 1640 and 1900 will safely do the thing. Actually, only the 1640 and the 1900 were chambered to magnum calibers by HVA and both have similar constructions, the 1900 being a modern action.
Just keep in mind that the M98 transformation into the "commercial" version (i.e. action #200) then into the Supreme (i.e. #300 action) is only based on cutting the manufacturing steps without cutting into quality/ strength, like HVA did for the 1640 is and so on for the 1900.
As for which is the "best" action, it's really hard to say, as per it depends on individual preferences. I liker Mauser actions. But I also like some modern ones, so it's hard for me to answer this question.
Just keep in mind that the M98 transformation into the "commercial" version (i.e. action #200) then into the Supreme (i.e. #300 action) is only based on cutting the manufacturing steps without cutting into quality/ strength, like HVA did for the 1640 is and so on for the 1900.
As for which is the "best" action, it's really hard to say, as per it depends on individual preferences. I liker Mauser actions. But I also like some modern ones, so it's hard for me to answer this question.
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