Once you have the gun mounted and your cheek weld and eye relief I'd have someone take pictures "on plane"- that is adjacent to- your head / shoulder /arm, from the right and left sides, and also the front. That'll give the helpful folks here a good idea of whats going on.
Again- I know its common sense and I'm not being disparaging, but triple check the gun is unloaded. Even an experienced person can sometimes make an error while concentrating on another aspect of gunnery.
Brian
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