Jump to content


Photo

Lewis Gun ROF Question


  • Please log in to reply
2 replies to this topic

#1 jolague

jolague

    Member

  • Regular Group
  • 32 posts

Posted 09 October 2020 - 11:01 PM

I have Jap Lewis Type 92 (Aircraft style) that is a lot of fun to shoot. I replaced all that I could with British parts. Nonetheless, my Lewis runs a little on the fast side. I always use 150gn FMJ ball .311 with 38 grains of IMR 4895. It's a decent load. I set spring tension to 12lbs. Anyway, I would like to get to the 450-500 range? Currently, I'm a 600+. 

 


  • 0

#2 DougStump

DougStump

    RKI Member

  • Regular Group
  • 411 posts
  • Gender:Male
  • Location:Shreveport, Louisiana

Posted 10 October 2020 - 09:36 AM

Probably too obvious, but do you have the gas regulator on the small hole?  You could also try a different powder that has different burn characteristics, my Lewis is quite happy with IMR-3031.


  • 0

#3 jolague

jolague

    Member

  • Regular Group
  • 32 posts

Posted 10 October 2020 - 09:55 AM

Probably too obvious, but do you have the gas regulator on the small hole?  You could also try a different powder that has different burn characteristics, my Lewis is quite happy with IMR-3031.

Yes, actually...,my gas regulator is further modified. In addition to the original "S" and "L" setting my gunsmith added "B" smaller than "S," and "A" smaller than "B." I put my setting to A. My gas regulator has four options. 


  • 0