308 x 6.5 vs 260 Rem

[MILLENNIUM]

Hi all, I'm hoping someone out there can help me out!! I am a fullbore shooter, I only shoot .308 and have never shot other calibre centrefire rifles. I recently purchased a retiring shooters equipment and have some Redding dies I want to sell. They are 308 x 6.5, can someone tell me what difference is between these dies and Rem 260...I have them listed on a classified site and am getting a lot of questions re the difference between these calibres but I honestly don't know!! Help!!

 

[Dans40X]

Re: NEED TO PICK YOUR BRAINS PEOPLE

Case trim length-
6.5X'08=2.005"
260 Rem=2.025"

 

[MILLENNIUM]

Re: NEED TO PICK YOUR BRAINS PEOPLE

Thanks for that Dan

 

[fm1947]

I often wondered that, case trim length, huh, what's the purpose I wonder now?

 

[XTR]

The 6.5-308 was a wildcat based on the 308 case, thus the same trim length as a 308, when Remington legitimized the caliber they slightly changed the demins. The 308 and the 260 both have 20* shoulders, so the distance from the widest part of the case to the neck is slightly longer in the 260, it has to be to get to the smaller diameter, that's where most of the difference in the two happens. It has only been since 1997 that Remington introduced the SAAMI spec. Take a look at the SAAMI drawings for the two.