Yoter-

I just sent a new Remington 700 VS .22-250 out to Kevin Weaver at Weaver Rifles in Colorado. He's going to ream it out to 22-250 AI. He's one of the best wildcatters and his prices are very reasonable. You can look up his web at weaverrifles.com or call him at 719-683-3024. He is a very kind gent who can and will explain all your options when deliberating an upgrade to making a cartridge "improved".
It can't hurt to call and if you read his web, you'll start to see why improved rifles are a step many shooters take when seeking the ultimate from a cartridge.
Best of luck!