I have a Thomson that I shoot80 grs pyroand 250 gr buckslayers in and .490 patch balls over 100 with Rem no 11s .
puts 3 touching at 50 ,less than 2" at hundred . The round balls will punch both heads on an oil drum and an 1.5" of plywood at 175 yrds and are 14" low dead onat 100 .