Quote:
Originally Posted by Salavee
Not much to gain velocity wise.. maybe 40 or 50 fps, but the Ai configuration seems to be easier on brass. Never had to trim yet and thats after about 8 fairly stiff reloads .
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I agree, most AI get 50-150 fps. Some cartridges benefit more from widening the body than others. The 300 H&H is a heavily tapered body with a low angle shoulder and benefits quite a bit velocity wise. AIing a 308 would be a total waste of time.
The one thing I did find with AIs is many, though not all, did not feed near as good as the smoother tapered original rounds. A 7x57 AI is a prime example of a cartridge that no longer feeds near as well. For a hunting gun I will give up 50 or 100 FPS for dead reliable feeding any time.