TheKid: If you think the Fox are thick on Kodiak Island then you ought to mosey on over (16 miles) to Afognak Island!
The Fox there need traffic lights on the beaches to keep from running into each other!
I have used the 25 grain Bergers in all my 17's for some time now and am happy with the accuracy, lethality and fur friendliness of these bullets.
I have not tried the 20 grain Hornady's as yet.
Best of luck to you on Kodiak and be sure to let us know how you do.
Hold into the wind
VarmintGuy