most of my favorite grouse guns are 16s, Parkers, Foxes or JP Sauer
never had an Ithica

nor an Ithaca 16
but, unfortunately - they see little use with the lack of grouse around here. I had planned to take the old setter out for what will likely be his last hunt after duck ended last weekend (woodcock ended here yesterday) but mother nature decided we should give winter an early try and i did not want him to struggle in this stuff