Here's the deal... I have been working up a load for my 338 RUM with the 250 gr. NAB and have been getting good results with H-1000. The only bad part is, (1 they're a bit pricey and (2 I can't find them anywhere! Elk season is approaching very quickly and I need to get my act together. I'd like to stick with 250 grains, so the GK has caught my attention, but I have a few questions before I go that route:

-How is the on game performance? (Looking for something with high weight retention)

-Will they fly as true as other bullets with hollow points and plastic tips?

-Will they deform in the magazine?

I've never used Sierra bullets; have any of you had any experience with them?