Author Topic: NMBHK Cylinder and Bore  (Read 653 times)

0 Members and 1 Guest are viewing this topic.

Offline gjdykeman

  • Trade Count: (12)
  • Avid Poster
  • **
  • Posts: 210
  • Gender: Male
NMBHK Cylinder and Bore
« on: May 08, 2010, 07:32:18 AM »
I read the posts about accuracy and throat and bore diameter. Slugged equals .450 cylinder throat and 440 groves and 450 lands??. Maybe got that backwards, but you get the drift. I cast and load my own. Light loads and bullets don't seem to work well. I load 300g FNGC .252 dia sized, with 20g 296 and they seem to work good. 255g hard cast PBFN, 9g Unique, work ok for target. 225g ACP bullets shoot like crap. Do I need to work on this or am I Ok. The drift I get is BHs like heavy bullets. I don't care. My groups are about 4" at 10y and about 6" at 25y. I shoot like I hunt, free hand no rest. One ragged hole site, large. 
SFC US Army 32y 8m 13d RET

Offline flatgate

  • Trade Count: (0)
  • Avid Poster
  • **
  • Posts: 158
Re: NMBHK Cylinder and Bore
« Reply #1 on: May 22, 2010, 02:41:25 AM »
Hmm, I would get those cylinder throats opened up so those 300 grain bullets fit.

www.cylindersmith.com can help you make that happen

I use a wee bit more WW-296 powder and a firm crimp in my .45 Colt "Ruger Only" loads.

JMHO,

flatgate