Home Forums Hunting & Shooting Ask The Gunwriters 6.5x55 vs. 260rem

OK, I understand SAAMI, but as a practical matter, the 6.5x55 and 284 share the same 55mm/2.165" case length, so wouldn't COAL would be the same for each cartridge, regardless of the bullet used in either a LA, longer COAL, or a SA, shorter COAL?

For example, if you loaded the 140 grain Partition into both the 6.5x55 and the 6.5-284 at short action COAL, 2.800", wouldn't you have to seat the bullet at an equal depth, below the bottom of the neck, to achieve 2.800" COAL? If so, wouldn't that make the 6.5-284 as equally unattractive in a short action as is the 6.5x55?

JEff