Home Forums Hunting & Shooting Gunsmithing Slugging a Ruger LCR .22 lr

Anybody have knowledge of someone who has slugged the bore of a Ruger LCR-series .22 lr revolver?

I'm curious to know whether the LCR-series .22 lr has the same bore diameter as the Single Six in anticipation of Ruger one day offering the LCRs in .22 magnum.

I sent Ruger an email asking about this and they said they never give out that kind of information.

This is kind of round-about logic, but I was looking at twist rates in the Single Six convertible vs. their one caliber only Single Ten .22 LR and noted they are both 1:14. All other single caliber .22 LR revolvers and pistols - LCR, SP101, GP100, SR22 and Mk IV are 1:16 twist. It's not proof positive but it leads one to believe that the LCR and other 1:16 twist handguns are bored properly for the smaller .22 LR bullet.

I asked Ruger about their bore diameters in February and they replied: ""The bore diameter for the new model single six family is .219 MIN MIN. DP. OF GROOVE .002 The groove diameter is .2240/.2255", i.e. all Single whatever SA revolvers are nominally .224 bore diameter for the .22 magnum.

My full post in Handguns in February: https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/11806272/Searchpage/1/Main/811300/Words/%2Bruger/Search/true/ruger-single-action-22-groove-diameter-the-final-word#Post11806272

I emailed Ruger about the groove diameter of their .22 SA revolvers. I had read often enough that the Single Six Convertible was bored for the .22 WMR so nominally was .224", whereas .22 LR bullets are .222-.223" in diameter. But the hope was that the Single Ten made specifically for the .22 LR was bored properly. Apparently not so.

From the horse's mouth:
"The bore diameter for the new model single six family is .219 MIN MIN. DP. OF GROOVE .002 The groove diameter is .2240/.2255"

I underlined "family" since I am going to assume that means the Single Ten, which I had specifically asked about. I was looking at twist rates and noted that the Single Six, Ten and Nine all had 1:14 twists but every other .22 Ruger makes had a 1:16 twist, that's another indication that they use the same barrels on all of the Single Six/Ten/Nine revolvers.

Goes to show you the difference a different day can make. The employee who responded to my email was clearly not the friendly cooperative guy who wrote back to you. Oh well.

Your logic makes sense to me. As you said the website has the twist for the LCRx at 16" so I'll proceed on the expectation that the bore is likely .222". Thanks.

Yeah, I was a bit surprised that they sent such detailed info. I've also had varying experiences with their customer support depending on who answered the phone - sometimes I knew far more than the person who answered and other times I got someone who knew their product line inside and out.