Any drag what so ever increases lock time and lessens firing pin striking force. Mup, I did some research the other day after my previous post. I found that when Remington started making the models 783 and 710, the machining is not as good and furthermore the design isn't as good either. This helps them get the rifle to a lower price point but causes other issues.
For example. I am a die hard Savage guy. But, since they redesigned the internal bolt parts around the time when the bottom bolt release came out, I have seen a few that have issues. Especially with the Axis series. The fix on ALL of them has been to disassemble the bolt and polish contact areas of the firing pin and other internal bolt parts. I found that shimming the spring in order to have more striking force sometimes creates more friction, thus defeating the purpose.