The barrel burning issue with short necks has been proven, and it has a name. Its called turbulence point. Unless its been unproven since.
Personally I think a lot of how long a barrel lasts is also quality of that lot of steel and whether you start with shallow button rifling which never lasts long for me, or deep cut rifling which has always shown a longer barrel life.
Definitely agree with this....one of the reasons I don't use button barrels anymore,and haven't for years.
