Sure a 350 legend is same trajectory as a 20 gauge sabot slug just with less energy 2200 ish vs 1800ish ( same as a 30/30). Maybe if it was single shot only straight wall. ( Talking muzz vs straight wall which is same as rifled slug gun ) A cartridge gun is just more reliable easier and faster than a muzz period. A 45/70 with 325 Hornady flex tip also shoots flatter than a sabot shotgun load even three inch. If the 350 legend is an AR you have magazine capacity also. Would I take my unscoped Model 94 375 Winchester out if it was straight wall, probably but if I miss I can get repeat shots very fast. Muzz you have to worry about weather and getting other things right and have one shot. I get the argument from all sides on this. Ultimately you cannot control what the next guy is doing whether it is neighbors buddies playing if it is brown it's down every year or a lot of traffic on good public land. Unless you have over 5/600 acres you can only do so much. That and habitat will make or break your deer hunting for mature bucks. Enough rambling I hope everyone had a good year, 8 1/2 months now until we can do it again. Western hunting app season is starting up give it a try if you can!!