Sorry, The .25-06 is another of the many cartridges that you should never chamber a contender for.
A quick list of ones ( but by no means a complete list ) that you shouldn't have is:
Anything based on the .308 win case ( .243, .260 rem, 7mm-08, .308 win, .338 fed, .358 win )
Anything based on the .30-06 case ( 6mm-06, .25-06, 6.5-06, 270 win, .280 rem, .30-06 springfield, .33-06, .35 whelan)
Any belted magnum ( 7mm rem, .300 win, .338 win, .375 H&H, .458 Win, and weatherby mags) , and a whole bunch of non belted mags ( like the WSM, and rem short mags )
.454 casull, .500 S&w, .460 S&W, ..450 marlin, among others
Anything based on the 7 x 57 mauser ( 6mm rem, .257 roberts, 7mm x 57 mauser, 8mm mauser )
There are several companies out there that have made their own wildcats from some of the above cases but they are all handloaded to low pressures - the JDJ wildcats from SSK industries are a prime example.
BTW: go to
www.snopes.com andcheck out the accuracy of your tag line " interview "