300 RUM Build

Mr6.5

Beginner
Oct 8, 2024
51
208
I originally built this with a to light for caliber barrel and it was problematic. I re-barreled with a M24 taper Faxon barrel.

Out at the range today, the rifle is shooting the federal fusion tipped 180gr over 91.5gr of N570 into a single hole, 7 shot group all can covered with a dime. Seems this one is good to go now. Very low recoil, like shooting a 22 250.

My data shows 91.5gr (Max safe load) of N570 is around 64k pressure but I see NO SIGNS, running a 180gr pill at 3300fps should be serious medicine for the dear this year :)
 

Attachments

  • 300 Rum Rifle Build.jpg
    300 Rum Rifle Build.jpg
    353.3 KB · Views: 13
  • 300 RUM Group.jpg
    300 RUM Group.jpg
    255.1 KB · Views: 13
Outstanding! Looks like anything in NA will be in deep dark trouble with that load.

JD338
 
Great Shooting!
How many rounds down the tube now?
Well, I zeroed it and then shot that group so about 10 rounds now. These magnums heat up so quickly you have to let it cool and do not get to shoot a ton at the range. The M24 taper super heavy barrel helps, I shot the 7 round string back to back with no flyers but it was hot after!
 
Back
Top