Originally Posted by
Mjolnir
Uh, you cannot state with any degree of confidence that the 20 degrees don't make a difference on the bolt. The endurance strength and cyclic loading is sensitive to temperature. How sensitive? See someone at one of the companies who can run an FMEA Model with the proper boundary conditions.
I suspect the extractor spring would be more sensitive than you think being such a tiny spring.
Will it make a difference in a class or four? No, the design is not that marginal. I'll take anything moving in the proper engineering direction: Better is ALWAYS better; even if it's only marginally so.