Well,
I would go with the stainless one. No mine ARE NOT stainless they are Nickel plated and I wish they were SS.
Now about the conversion cylinder. First off I assume it is a 45 Colt conversion cyl. The reason I say that is because the early ROAs were called 44s ( the way it should have been) than I guess that confused a lot of folks so they were changed to 45s for the late guns.
The old BP guns went by DRILL size not by grove depth. Therefore a 44 Colt Walker, 44 Army and such were 45 cal. with different ball size say from .451-.457.
Now about how nice it is to have a conversion cyl. This is for those that don't have any and don't understand the reasons to have one. It does make it nice to load 45s with a full case of 3F Goex and a 250 Gr. bullet.
From an old post
Hey Guys,
Well I finally bit the bullet, OK a PUN, and bought two 45 conversion cylinders for my ROAs. These were made for me by Chris at Howell Conversions. They were R&D Conversions at one time. I wanted fluted cyls. with a Black Powder Bevel on them. So I called the factory, who also have the best prices. :wink:
Well let me tell you about Howell and Chris. They did outstanding work, they are the same overall as the C&Bs, they were sent when I was told they would be by one day. Chris called me to tell me he would be ONE DAY LATE. Since I was buying two he paid for shipping and no charge for the BP bevel. The price was as stated. So how much better can it get?
Now I know some of you guys will say geeeeeeeeeeee you can get a whole gun for the price of a cylinder. Well let me know when you find a 3 screw 45 Vaquero that will also shoot C&B. I don't care what you do to a new model it still feels like a new model. Yea I have a few. :roll:
Anyway now when I go to a match and it is raining I don't have to load C&Bs in the rain Trust me I have and it ain't fun.

Also I can spend more time practicing and not so much time loading.
The cartridges you see are 45 Colt and the 45 Cowboy Special. The CBS allows you to load less powder (money 21Grs. verse 38Grs.) and you don't need a filler for less recoil. A full case of 3F Goex and a 250 Gr. bullet in a Colt case will get your attention. I loaded the CBS 21 3F and a 200 Gr. bullet It is still a stout load.
So all you guys that want a rimed 45 ACP here ya go.
I really enjoy the ROAs now they are a lot More versatile and will be shooting this weekend in a big match.
Thanks,
Jim