The blurb that skeettx linked for us is interesting reading. There are some omissions if not errors. The authors chastised Frank de Haas for speculating that Remo made 20 gauge two shot 98 conversions. No one mentioned the possibility of Remo making a 28 gauge. Yes they probably made 20 gauges and they positively made 28 gauges. I provenanced a beautiful 28 gauge converted Mauser through the Griffin and Howe research facility. It and others were sold by Abercrombie and Fitch. I don't own the sweet little 28, but I have handled it and Bob Beach researched it for me.