224 12 twist SS 4R Rem Varmint 27".219 bore, cut rifled 4 groove.830 at 26" continued taper
224 12 twist SS 4R #3 27".219 bore, cut rifled 4 groove.625 at 24"
224 12 twist SS 4R #5 27".219 bore, cut rifled 4 groove.700 at 26" continued taper
224 12 twist SS 4R M24 27".219 bore, cut rifled 4 groove
224 12 twist SS 4R #4 27".219 bore, cut rifled 4 groove.650 at 26" continued taper