Ended up like you with a 20 MOA ordered in to find out they are 8-20 screws. Weaver emailed me and said that the stealth line comes in 338 and 300WM so Savage is making it easy by just drilling and tapping for the larger screws.

Weaver said however, that they did not know about the change and they have no product yet with those new larger screws.

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