I've received advice from several folks in Norway NOT to use 6.5 X 55 Swedish milsup ammo in my M94 Krag long rifle.  Several other users at Surplusrifleforum apparently use the hotter ammo without incident (yet?).  Is there a source for downloaded 6.5 X 55 ammo in the US?  I'm looking for something pushing a 140 gr bullet at around 2,500 fps, with pressures near 40,000 psi or less.  What's the opinion of folks here?  Is this like the safety of "low-numbered" M1903 Springfields (not likely to blow, but it only has to happen to YOU once).

Should I simply resort to exclusively handloading for Norwegian Krags?