300RUM Nosler Question??

Discussion in 'Reloading' started by Armored Transport, Feb 4, 2013.

  1. Armored Transport

    Armored Transport Well-Known Member

    Messages:
    256
    Joined:
    Oct 26, 2011
    I have been load developing with good results...EXCEPT...Every few shots I have one stick in the chamber on me to the point where I put a rod down the muzzle and poke it out.....Fed Mag 215 primer, 92g Retumbo, 208 A-max jumping 10, 3050fps. I have had smooth extraction with 94g and 93g with slight preasure signs and at 92g no signs and highly accurate. All the brass used so far has been new out of the box ( got a good buy on 300 rounds ). Now with all that being said have any of you guys has any problems with Nosler brass being different in wall thickness or some being softer than another within the same lot? Or is there anything else I need to look at. Thank's for your time and input..lightbulb...Rick
     
  2. Lefty7mmstw

    Lefty7mmstw Well-Known Member

    Messages:
    4,280
    Joined:
    May 13, 2012
    My brother is using Nosler brass in his 300 rum; I use rem in my rifle. Both are similar in our rems. If you are having brass stick your pressures are to high and you need to back down.
    Are you fl sizing?? You are working the heck out of things, if you aren't fl sizing you aren't going to have much of any spring back with stout loads like that. Another thing, let the bullet jump a bit. Ten. thou off with a big bullet like that may as well be jammed.
    I shoot the 225 hdy hpbt in my30 rum to 3000 fps with no issues and I fl size and let her jump .150". Either rl50 or rl33 does the trick. I haven't chrono'd rl33 yet, but it hits like a brick.
     

  3. CB11WYO

    CB11WYO Well-Known Member

    Messages:
    536
    Joined:
    Nov 13, 2012
    I had a similar problem with my 300 RUM. A bore-scope revealed a whole lot of gauging and scratches in the chamber, probably causing the brass to hang up upon trying to eject. A good bit of polishing fixed my problem, just had to be careful not to change the chamber dimensions too much.