Originally Posted by sinarms
Savage never went to a large shank because of a problem, they did it because of added safety. If there was a problem every small shank Savage that was made in WSM and Rum would of been recalled. There have been a very few Savage nuts that have cracked and that was a problem with the nut and not the barrel. Every factory Savage is tested above and beyond any factory ammo and if I remember right it is twice Saami specs for the cartridge and it passes that without failure. Any of the rum cases and wsm cases are fine in a small shank Savage. The end user would be the one that causes the problem by pushing it to far hand loading but then again you can blow up a 223 if you don't know what you are doing when you are hand loading.
the actual thread cracking was with Remingtons. There's very little difference between the root diameter of a 1.05-20 thread and a 1.06-16 thread. They are both sharp vee threads, and a few years back several folks were have cracks form according to Lilja. On the otherhand they were probably using generic 416 stainless steel, as most are still using to this day. A 17ph4 barrel might be a better fit. I don't see the real worth to gain 150fps at best, over a .300 Weatherby (a .300 Jarrette or a .300 Ackley are very similar cartridges).