Noob? for redding S FL resizing die users

Sniperwannabee

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  • Feb 14, 2017
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    I havent started reloading yet just gathering all my equipment. I purchased the FL type S dies and was reading the instructions and I guess i need to buy neck bushings as well? How am i supposed to buy the proper bushings if I never reloaded before to have something to compare it to? Im going to be reloading 6.5cm 308 and eventually 7saum and 223. Any input would be appreciated thanks.
     
    If the brass you’re using is the brass you’ve fired, then yes. Just measure a factory loaded round. But if you change brass from say hornady to lapua (insert whatever other brands), you may need different bushings due to the differences in neck thickness between brands.
     
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    measure the inside of case as best as you can. Your inside neck diameter for your 7saum could be anything less than .284. See what it is, and then see what the outside diameter is. You’ll get an idea of how much tension you’ll have on the inside for the outside diameter.

    If your inside diameter is 0.280 and your outside diameter is 0.308 (example), then you know to achieve 4thou tension you need a 308 bushing. For 2 thou tension you would need a 310 bushing.

    at least that’s how I see it. I’m sure someone will correct me if I’m wrong. But that’s what I would do.
     
    what is the world is a mandrel, do I need one of those as well
    You size the neck down with a bushing but don’t use the expander with the die, instead use a mandrel to size the neck back up.

    The pulling motion of the expander is somewhat known for pulling the case out of straight whereas the pushing of the mandrel doesn’t.

    It is case and situation dependent, with annealed brass and proper bushing selection it’s less of an issue.

    What I do is use the S die without the bushing or expander, I use it as a body die then use a lee collet to size the neck.
     
    what is the world is a mandrel, do I need one of those as well

    Lol....I use mandrels. I use a standard FL sizer with the expander removed. Sizes everything down. I then use a .002 under my bullet diameter mandrel to open my neck back up for my desired neck tension. Leaves almost perfectly straight necks.

    Bushing dies are overrated imo. Sold all of mine and went back to regular sizers. I could never get my runout down low enough with bushing dies.

    Both work just two different ways to skin the same raccoon
     
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    Lol....I use mandrels. I use a standard FL sizer with the expander removed. Sizes everything down. I then use a .002 under my bullet diameter mandrel to open my neck back up for my desired neck tension. Leaves almost perfectly straight necks.

    Bushing dies are overrated imo. Sold all of mine and went back to regular sizers. I could never get my runout down low enough with bushing dies.

    Both work just two different ways to skin the same raccoon
    Yea
    I quickly moved away from bushings, the problem I see with them is the don’t like generous chambers with ample neck room.

    For brass fired in tight neck chambers they’re quite happy.
     
    i see maybe I’ll return these dies,
    If you go with the collet send it to me and I’ll ream it out
    Alternatively if you plan on going bushing with ADG brass I can stuff a bullet in one of the brand new cases I just got and get you a measurement.
    Buying a mandrel and die for it is fairly cheap.
    21st century is a good source

    My favorite die setup is a Forster micrometer seating die
    Redding body die(and a S die can be a body die)
    And lee collet.
    I load 223, 260 and 7 saum with them.
     
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    Lol....I use mandrels. I use a standard FL sizer with the expander removed. Sizes everything down. I then use a .002 under my bullet diameter mandrel to open my neck back up for my desired neck tension. Leaves almost perfectly straight necks.

    Bushing dies are overrated imo. Sold all of mine and went back to regular sizers. I could never get my runout down low enough with bushing dies.

    Both work just two different ways to skin the same raccoon
    I have started doing this as well, my question to you is do you think sizing the neck down that much then opening back up with the mandrel is overworking it?
     
    I have started doing this as well, my question to you is do you think sizing the neck down that much then opening back up with the mandrel is overworking it?

    Depends on how much you fl die smashes your neck down mine goes down about .008 on most calibers and I open it back up usually .006. I havent had a split neck yet doing it this way. Most of my brass is over 10 reloadings but if I did start seeing this, I would just have my die honed by forster to be .004 under probably
     
    so the easiest thing to do is:
    (1) gut my Redding die and FL size brass
    (2) then switch out the Redding die with expander die with a mandrel?


    so it’s a two step process
    1-run s die with bushing only then use mandrel to set neck, two steps.

    2-gut s die and use as body die then use Lee collet to set neck, two steps.

    Both give good results but the bushing won’t like a really big expansion from a generous chamber.

    With adg brass and the common .319 neck chamber it’s pretty mild expansion think so bushing friendly.
    I can measure when I get hone.

    that’s why I love turret presses.
    Just rotate in the next die.
     
    Another option would be to send 3 of your fired cases (pick a brand you plan on using the most) and send them to Whidden for a custom die. They can do either bushing or non-bushing dies. If you go bushing die, they also sell a kit with your choice of bushings to play with your sizing. It's a buy once cry once thing. I really like his fl non-bushing dies, but have a couple of his bushing dies as well. I'm just not a fan of bushings. There is a lot of variance in their sizes.
    I hone my dies and bushings instead of sending them off to someone. http://www.acrolaps.com/ These guys make a good product. Just need to get some lapping compound to work with the laps. I use the fine lapping compound from these guys: https://ws2coating.com/
    My problem is finding ways to entertain myself for 15 hours a day... :rolleyes:
     
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    Whoa! You are getting too much advice for a newer reloader. First, you bought these dies for a reason...what was that?

    Redding makes type S dies because reloaders have complained that standard dies are overworking their neck be over sizing before expanding....hence interchangeable bushings. Also, advanced reloaders complained that they wanted to size their neck turned necks without an expander claiming the expander pulled their necks off center.

    With bushing dies I recommend you use Imperial case wax or another thin lube. Based on my experience, thicker lubes get in the bushing chamber and force it off center....pain in the butt.

    So, I would recommend you take 3 caliper or better micrometer measurements on each loaded round neck. Then average them to one number. Factory ammo is ok. Ideally your cases should all be the same brand. Measure 5 loaded rounds like this. Buy your first bushing as the average of those 5 averages minus 0.004”. Since you are not neck turning, keep the expander in the die. That will force any variation to the outside of the neck.

    if you measure case neck runout, you need to measure to inside.

    After FL Sizing, measure 5 case necks as shown above. How does this number look? It should be 0.003-0.001” less than the loaded rounds. Try it. Does seating ring the bullets? How is bullet runout? How are your groups? Is there something not pleasing you? Let’s work on it. Feel free to DM.