[/quote]

...

The 6.5 Swede will push a 130 bullet around 2700 fps with 43.5 gr of H4350

The 260 will get around 2900 fps on 43.5 gr of H4350

...

This makes the 260 more efficient

...

Shod

[quote/]


No, in my opinion it does not. That only makes the 260's a smaller capacity chamber, freebore included.

Your data is not comparable since you have excluded the important variable of pressure. I would agree if both were working at the same pressure, which is unlikely.

Last edited by chamois; 05/23/16.