I picked up an old Rossi M851 a few weeks ago and have twenty seven rounds through it now, all federal ammo. I needed some more ammo so I bought all I could find, all three boxes. When I got home I noticed it was all CIP ammo. Specifically Fiocchi .38 S&W special 158 gr. Its the C I P that has me a little concerned, I know that this is loaded hotter than the federal that I have already fired through it, but I don't know if the revolver will handle it. I can't find a manual online for it anywhere, Rossi was bought by Taurus I believe, and I'm not sure if the m851 is even included in the taurus lineup or what its model number may have changed to. bottom line is I need to know if this ammo will blow my face off if i try to shoot it. The guy I bought the gun from says he has fired +P through it but again I don't know how this 38 spcl cip ammo compares to +Por even +P+. Maybe this is why there still three boxes left