.50 BMG vs windshield (This is one of the most powerful rounds on the market): https://www.youtube.com/watch?v=G2Ulq0ZfbMA
Windshield vs 12 gauge (This is at distance so the velocity is lower and the pellets have spread): https://www.youtube.com/watch?v=bvr-8_Q_ELE
Check out the TFC store. Stickers, mugs, hoodies, shirts, etc. Make sure to hover over the heart icon on the design to see where money is being donated.