Bipartisan only means at least one of each party was for it. 86% is a talking point number.So he voted for a bi-partisan background check bill (which ~86% of Americans support), and then nothing else that's relevant to this "is he coming for your guns" discussion. Got it.
Neither are anywhere close to the common man. One says he's a rancher and one says he's a farmer. You can vote based on that if you want.
As noted previously, Tester primarily votes with Ds and Biden. Sheehy will likely primarily vote with Rs. If you like the D agenda, vote for Tester. If you don't like the D agenda, vote for Sheehy.
It really is that simple. Voting for the man is a sucker's bet since no single Representative or Senator does anything by him/herself.