Brass bushing issue.

Discussion in 'Reloading Forum (All Calibers)' started by rhovee, Jan 13, 2018.

  1. rhovee

    rhovee

    Joined:
    Dec 31, 2017
    Messages:
    22
    So i have a 6.5WSM and am necking down 270wsm brass with a Redding FL die using a .294 bushing. I have done this for months. I purchased 150 pieces of brass all same lot. The only thing i have changed in the last few months was getting rid of the expander ball. Tonight i did my normal routine and decided to check the OD on the sized brass. It was .290. How can brass neck down smaller than the bushing? I questioned somehow there was thicker brass in this box that others. But my thinking would be that even if it was thicker, the OD would still remain the same. If i put the expander ball back on it irons out. I inspected and cleaned the bushing. It's the Nitrided bushing so it didn't have any junk on it. I do dip the necks in powder graphite to ease the process.....
     
  2. dkhunt14

    dkhunt14

    Joined:
    Jan 15, 2012
    Messages:
    4,724
    Did you use a Mic to measure? A caliper can easily be off .001 or .002. The bushing could be off .001. Matt
     
    WyleWD likes this.
  3. Joe R

    Joe R Gold $$ Contributor

    Joined:
    Feb 4, 2013
    Messages:
    1,578
    I agree with Matt, check your calipers with a pin gage or with a few bullets. There is no way you can have that much spring back.

    Depending on your shoulder angle the brass will get thicker after a couple of firings as pressure pushes some brass forward. In my .308 I have to turn necks again after a couple of firings. With my 260AI, its once and I'm done.

    Joe
     
  4. rhovee

    rhovee

    Joined:
    Dec 31, 2017
    Messages:
    22
    I checked the calipers and they are working correctly. I even took a fired piece of brass and sized it and it came out .294. Not sure how virgin brass of the same lot can be that far off.
     
  5. L.Sherm

    L.Sherm

    Joined:
    Feb 10, 2012
    Messages:
    498
    Anneal the brass and try again this time with the expander, stranger things have happened.
     
  6. rhovee

    rhovee

    Joined:
    Dec 31, 2017
    Messages:
    22
    I think I figured it out. Somehow the bushing was being stuck and not floating cause the edges to overlap.
     
  7. 243winxb

    243winxb

    Joined:
    Feb 6, 2006
    Messages:
    724
    Redding has the answer on their web site.

    Quick answer- sizing down more than .008" in one step can do it.
     
    Willie likes this.

Share This Page