Quote:
Originally Posted by Dean2
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.
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I think a gain of 150 fps might be stretching it a bit but in some rifles,maybe.
As far as feeding is concerned, I have never had an issue with my Mark X action but I agree, it probably could cause feeding grief in some rifles.
I use regular .35 Whelen ammo(for the headstamp) and fire form. Have'nt noticed a whole lot of difference between the two cartridges except as I noted previously, but I will say, either is a mighty fine hunting round.