6.5mm-308 Winchester?

[thefitter]

http://www.midwayusa.com/find?newcategorydimensionid=12570

Found this caliber while looking on Midway. I can not find anything else about it online.

 

[lhead71]

It's a .260 Rem. That was the original name before being SAAMI'd.

 

[CatShooter]

http://www.midwayusa.com/find?newcategorydimensionid=12570

Found this caliber while looking on Midway. I can not find anything else about it online.

The 6.5mm-308 was developed before the 260 was a glint in Remington's eye.

I don't recall the name of the group (A-Frame rings a bell), but they developed this cartridge with a 30°, and then a 40° shoulder, that was made by setting back the original 308 shoulder. The advantage was that a sharper shoulder was available, and fire forming was not required.

They petitioned SAAMI before Remington did, but in cases of conflict, SAAMI will pick one and refuse the other. Whether it was that the 260 was easier to make, or that Remington had more "jooce" is speculation, but in the end, the 260 prevailed, and the 6.5-308 remains a wildcat. (A similar conflict occurred with the original Nosler 280 improved, and Remington's version - Remington's version prevailed, and the current Nosler 280 Improved is a better cartridge for it)

A set of form and loading dies are expensive ($250-$300), because the cartridge requires case forming dies and it also requires an inside neck boring die.

There are a lot of reasons why it is not popular

 

[dennisinaz]

The 6.5-308 did NOT have a 30° or 40° shoulder it has a 20° just like the 260 Rem. The only difference is that the 6.5-08 has a slightly shorter shoulder (.0013") and a slightly shorter neck resulting in a shorter overall case length. These subtle changes were made when Remington adopted it.

You are not likely to find anything for the 6.5-08 as it is for all practical purposes at 260 Rem. You can still buy dies from Redding and Hunnington that are coded as 6.5-08 and a reamer from PTG the same. Not sure what you would gain and you would have to trim your brass.

 

[butchlambert]

Listen to Dennis. He has been around the block and I didn't see him on the turnip truck.

 

[bheadboy]

i had a 7mm x 308 built by Jerry Hart, on a Rem 600 action with a 22 inch bbl, in 1973, still have the Redding dies marked 7mmx308, well before the 7-08
the various versions of 308 from 6mm up to 8mm were around long befor the "factory"versions.

Bob

 

[signut]

Listen to Dennis. He has been around the block and I didn't see him on the turnip truck.

Turnip truck? Are we picking on turnip pickers now

 

[butchlambert]

Well why not, we do it to the radish pickers.