What is the recommended overall loaded cartrige length for a .338 RUM? I have a .300 win mag in a Sako AV that I would like rebarreled for .338 RUM and need to know if the cartrige will fit in my magazine.
Any help would be appreciated.

I believe it's 3.600". I load my loads in a Rem. 700 to about 3.660". Hope that helps, Joe.

Frasier B;the out of the box ammo;Remington 250 grs Swift-A-Frame PTD SP,lengh 3.560"{more or less}.

I asked Nosler and the reloading tech said that 3.600 was the longest OAL they tested at...I've found that it may be a tad too long for my Ultra...doesn't like to eject live rounds when I'm in a hurry. Maybe I need a stiffer ejector spring????? Accurate as all hell though

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God Bless and Shoot Straight