Thinking about building a short action 243 ai and wondering if I am giving up anything by going with a model 7 versus 700? The model 7 seems to be a good action. Aftermarket stocks and triggers the same? Bolt handle? Maybe a sako extractor job? Can anyone explain the difference? Composite stock. Thanks, Ed 585-943-9412 If you do gun smithing, maybe call me, I need someone to do it.