SOCOM Looking at .260 Rem and 6.5 Creedmoor Sniper Systems

[stanc]

Just saw video from Barrett showing off their shortened M240 — chambered in 6.5 Creedmoor (start at 9:20). "It performs beautifully." Stan? Perhaps fears of a 30° shoulder on a military small arm are overblown? :o

You could be right, John. The 7.5 Swiss is very close, with a 28° shoulder. Apparently worked fine in belt-fed machine guns and select-fire battle rifles.



I wish I could've found something definitive on why the shoulder angle was reduced during 7.62 NATO development.
Army Ordnance clearly recognized the advantages of a 30° shoulder, and it was changed only after years of testing.



P.S. Regarding the statement that 6.5 Creedmoor "performs beautifully" in the Barrett M240: It must be true, because gun makers never exaggerate.