20 PPC info

Discussion in 'Small Stuff--22s, 20s, and 17s' started by potatoe, May 28, 2012.

  1. potatoe

    potatoe Site $$ Contributor

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    I was wondering if I could get some input on a 20PPC. I'm wanting to do something a little different to shoot groundhogs with and the 20PPC interests me.

    I'll be looking to shoot the 32-40 grainers and want to know what twist is optimal for those bullets. Also I'm not familiar with the neck diameter of .20 cal bullets for a chamber. I'd like to atleast skim some off the necks and want to know what neck the reamer should be. Also I have a PPC die that I intend to use - I'll just swap out the bushing. Would that work?
     
  2. cmillard

    cmillard Site $$ Contributor

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    a 1-9" to a 1-11" is typical of the .20s out there. obviously go with a faster for the longer bullets. i think the 11" should work for those bullets
     
  3. potatoe

    potatoe Site $$ Contributor

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    What is considered a tight neck with a .20 cal?
     
  4. Phil

    Phil Site $$ Contributor

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    Not sure if it is considered a "tight neck" or not,but i turn my necks to .012 that gives me a .228 loaded neck in a .230 chamber...

    I don`t know if this is of any help to you or not........


    Phil.
     
  5. potatoe

    potatoe Site $$ Contributor

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    Thanks phil. Thats what I was looking for. What twist is yours and what bullets does it like?
     
  6. potatoe

    potatoe Site $$ Contributor

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    Any idea on barrel life of a .20 PPC?
     
  7. Phil

    Phil Site $$ Contributor

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    I built mine with an 11 twist....

    It sure likes the 39`s... ;D
     
  8. JASmith

    JASmith

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    Bore capacity suggests somewhat better than half the life of a .308 Win or .223 Rem and a fair bit better than the .243 Win.
     
  9. Jeff

    Jeff

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    I would get a 9 twist. Mine is a 10 twist and it's key holeing with 50gr Bergers. My friend has a 9 twist and does fine with the 50's. We are shooting 204's. How long is appx barrel life with a 20 PPC ? I have seen a 20 PPC that had the
    throat eroded after less than 300 rounds. If I hadn't seen the barrel I won't have belived it.
     
  10. kjcpoint

    kjcpoint Site $$ Contributor

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    I also would go with a 9tw.

    20br and a 20-250 with 9tw and they shoot 39's to 55's very well.

    Kyle
     
  11. JASmith

    JASmith

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    The .20 PPC has a case volume that is less than that of the .20 BR, .20-250, etc. and a 300 round or less barrel life would make these cases less than useful. This suggests that the 300 round erosion point was either a fluke (soft barrel, etc.) or the shooter was very cautious about things.
     
  12. SRM

    SRM

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    I have one and realy like it. 9 twist krieger. 40 and 50 grn bullets are fine.

    I fireformed three hundred brass with pistol powder and schorched the throat for about four inches.

    I want a new bbl but it still shoots at a .5 moa. Fouls bad though.
     
  13. GlennB

    GlennB

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    I run a 40gr V-Max's in my 20PPC.
    It has a 1in12 26 inch Lilja barrel.
    Shoot unbelievable!
    Shoots flat to 300 metres!

    I don't know what the barrel life will be like till I wear it out but if I get a 1000 or more I will be happy!
    Barrels are a commodity to me, they are screwed into actions so you can change them ;D

    Cleans up real quick too!

    Glenn
     
  14. joemax

    joemax Site $$ Contributor

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    What was your rate of fire when you fire formed the 300 rounds?
     
  15. L461

    L461

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    What brass do you intend to use.

    I have a 1-10 that shoots 40grn V-max into tiny little groups using Benchmark.

    Having a similar case capacity to a 204R I would imagine barrel life would be about the same.

    Take the step you will never regret it.
     
  16. SRM

    SRM

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    The first 100 were pretty quick. Slowed down for the rest.
    I`d say fireform with bullets so this doesn`t happen. I`m gona get another bbl and save the old one to fireform.
     

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