Requires hand fitting, reaming or lapping to achieve the best possible fit. .253" diameter provides a cylinder-to-frame fit that’s free of all lateral movement on guns with oversized frame holes.
SPECS:
4340 chrome moly, polished, blue finish. .253" (6.43mm) OD, 3.25" (8.25cm) long. Fit 1st, 2nd, and 3rd generation Colt single action revolvers.
Catalog page 218