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Is the 6.5-06 and the 6.5-06 A Square the same or different calibers. I know A Square standardized the 6.5-06 and I was figuring they were the same caliber, however when I compared the case diminsions for the A Square round (from ammoguide.com) and the case dimensions for 6.5-06 in Hornady and Sierra manuals the A Square dimensions varied slightly. Hornday, Nosler, and Sierra don't make any specific reference to the 6.5-06 A Square. In looking at reloading dies RCBS sells dies in 6.5-06 where Redding lists their dies in 6.5-06 A Square.
I currently have a rifle in 6.5-06 made by The Montana Rifle Company and don't recall any reference to two different caliber choices there either. Just curious about the difference in case dimensions and if they were the same or different calibers.
The 6.5 is kinda like the 25.Untill the A-square it was a crap shoot what the chamber dims are.Mine is on a FN commercial action with a 1 in 11 twist.A standard shoulder length and angle is most likely.And that is what Art standardized.I prefer to make brass from necked and trimmed 270.
Thanks for the reply. That is kind of what I was figuring in regards to A-Square standardizing the dimenions. I was a little concerned however that the dimensions listed in the A-Square reference that I found and the dimensions in the Hornady manual were different. I will look again this evening and make sure I just didn't misread the measurements.