The .338 and the .325 will generate quite similar recoil when firing bullets of the same or similar weight at similar velocities. With the heavier bullets, the .338 has more recoil, contrbuted to by the heavier bullet and heavier powder charge. However, the .325is usually chambered in lighter guns, so it may feel as bad.

How recoil FEELS is very subjective, and has a lot to do with the shape of the stock as well as the gun's weight. A rifle that comes straight to the rear dumps most of the recoil into your shoulder, but one that has a significant amount of muzzle rise cracks your cheekbone too, and that's a lot worse! At least to me.

I certainly would NOT become involved in a dispute as to which of the two is BETTER, but I would opt for a .338 Win. just because there are more good bullets in a wide range of weightsbeing made in this country in .338" vs .323". However, if I had access to all the fine 8mm bullets in the world, such as those being loaded in Germany, it would make the choice much harder! I would NOT BECOME too worried about the availability of brass for the .325 yet. Nothing in the world is stranger than the .348 Win., but despite the fact that the only rifle ever made for it, the M71 Win., was discontinued in 1958,.348 Win. cases are still made from time to time. And relatively few M71's were ever made.