Question about Ruger Buckeye Special in 38-40/10mm

[Sacramento Johnson]

Hi all,
Does anybody know if Ruger under-throated the Ruger Blackhawk Buckeye Special 38-40 cylinder throats, or did they manage to get those correct (unlike Ruger's Vaqueros in that caliber)?
Thank you!

 

[GarrettJ]

I had to get my .38-40 cylinder reamed. The 10mm was fine.

 

[CraigC]

I haven't measured mine but I do keep hearing that many of them are undersized.

 

[Onty]

See what Lee Martin did with 38-40 https://www.singleactions.com/files/3840WinchesterArticle.pdf . Using Blackhawk, 200 grains bullet at 1400 fps.