Good news for 50 Thumper clan, or fence sitters, yes our favorite cartridge is also available in short action, same length as a WSM or 308 so no internal box or mag change, I figure it will have about 75 to 80 % of they energy of the full load one, which is still more than you will ever need, there are also Trail Boss loads that are available, there is also a mini Thumper available in 223 length and 30-06 length in long action, all you need is 375 or 416 Ruger brass 500 S&W dies and .501" pistol bullets.

Dean