Bob, don't really know what you are looking for. Did you mean 420? Much different from 410. I have a 45-70 that will shoot 410 but they have to be 2-1/2", tough to come by these days. I do have a variety of 16-10 Ga. that should get the job done faster. I also have a new, unused, 5 shot auto loader in 3-1/2", it's the new Benelli gas model so it shouldn't hurt you too badly.