Title says it all. Just curious as to what significant differences there may be between the two alloys. I've noticed several manufacturers utilize 41V45 for use in rifle barrels (FN machine guns, Noveske N4 light, Ruger SR556, LWRC, etc...).
One article (I'll try to dig up the link) mentions 41V45 simply being Milspec 4150 alloy with the addition of Vanadium to increase tensile strength. Is this accurate or is there more to it than that?
Tspeis

