Even the 6.5X55 Swede is inefficient when compared to the 260 or the Creedmore.
Shod
Please explain. I've owned 260's also but I don't own a Creedmore yet. The 260's I've had wouldn't keep up with the 6.5x55. They were short by 50 fps. The deer didn't know the difference though.
JP,
As an example in comparing load between a 260 and 6.5 Swede.......
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
That's a 200 fps difference on the same amount of powder. In any load Manuel the 260 will give more Velocity with an equal amount of powder.
This makes the 260 more efficient
To show a more extreme case we can compare the 308 vs a 300 win mag
The 308 with 40 ish gr of powder will push a 150 gr bullet to 3000 fps
The 300 win mag with 80 gr of powder will push a 150 gr bullet to 3350 fps
Double the powder doesn't give anywhere even close to double the velocity. The bigger the case the worse it gets. It's the law of diminishing returns and it's exactly the reason why a study of over 8000 moose in Europe were shown to have expired just as quickly when shot with a 6.5 Swede as they did when shot with a 300 win mag.
The only difference I can tell is one is full of hot air and the other isn't. Take your pick
Shod
