Has anyone ever used or have experience with 270 Gibbs? I was curious if I could use Lapua 30-06 brass to form the brass anyway? I guess I would have to turn the brass down a couple thousandths first?
270 Gibbs or 280 AI or 284 Win
That is what I have to pick from to redo my 270.
Any thoughts? Just looking for a 600 yard deer/paper puncher.
I think if you form from 30-06 brass, you will have to size the necks down first and then turn them. 65 grains is near full capacity with Lapua brass. What kind of action will you be using?
I did not know if that was possible with Ruger bolt. Going to a 270 Gibbs would be a substantial increase over my current 24" factory stick. I am getting 2927 fps with 130s, 2878 fps with 140s and 2690 fps with the 150s. These are the most accurate loads I have. I have driven the 130s to just under 3100 fps, but my 12 ** keeps a better pattern. The 270 Gibbs I have seen is getting 3400 fps with 130s and 3130 fps with 150s out of a 26" barrel.
Granted there may be a difference in our chrono data, but it is not that big. He is on the heels of 270 WM figures. From what I have seen posted, the difference between the Gibbs and WSM is a wash.
You have got about 69.5 grains of powder capacity in the 270 WSM, and can cram about 66 grains in the Gibbs, so statistically they will be close in performance at normal barrel lengths (26 inches). It is easy to open the boltface up, (real easy). And you would have a lot less brass prep with the short mag. The one advantage the Gibbs would have is that you could make it out of Lapua brass.
