You got me wondering and so I checked the length of some 6.5 bullets I have on hand.
127LRX 1.396"
120GMX 1.400"
120 TTSX 1.321"
120 TSX 1.251"
140 AMax 1.377
Of my rifles the 260 with a 1-8 will handle them all
The 260 1-9 skinny barrel gets fed 140core-lokt or 120 bal. tip.
The 6.5x284 is a 1-8 and handles them all as well.
Hope I haven't muddied the water.


"Camping places fix themselves in your mind as if you had spent long periods of your life in them.
You will remember a curve of your wagon track in the grass of the plain like the features of a friend."
Isak Dinesen