Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Alpine ZeroPak


User Tag List

+ Reply to Thread
Page 2 of 2 FirstFirst 12
Results 16 to 25 of 25
Like Tree44Likes

Thread: Projectile annealing

  1. #16
    Member Puffin's Avatar
    Join Date
    May 2012
    Location
    Porirua
    Posts
    970
    Quote Originally Posted by 300_BLK View Post
    Like this @Puffin
    Using the same reasoning, no-one would anneal case necks without similar equipment ? The benefits can still be enjoyed without the precise quantifying you are proposing. Visually the tips of Berger bullets have not been annealed as a final treatment so annealing by the end user will soften the copper to some degree, the amount and resulting benefit that can be determined by observing any improved end performance on game. The end result is all that is important. Anneal just the tips with the bullets held upright to retain any lead that melts; problem solved.

  2. #17
    sneakywaza I got
    Join Date
    May 2013
    Location
    Fairlie
    Posts
    3,538
    Have shot a few Tahr with 150gn SST out of a .270, and they were NOT annealed bullets, the Tahr shot all died, am I doing something wrong? be a bugger if they come back to life afterward just cause you didn't anneal your bullets, imagine all those zombie Tahr wandering around the hills.......
    veitnamcam, mikee and shooternz like this.

  3. #18
    Member 300CALMAN's Avatar
    Join Date
    Dec 2014
    Location
    NZISTAN
    Posts
    5,215
    Is this a piss take?
    veitnamcam likes this.

  4. #19
    Member
    Join Date
    Jun 2013
    Location
    Middle Earth
    Posts
    4,030
    Quote Originally Posted by 257weatherby View Post
    Have shot a few Tahr with 150gn SST out of a .270, and they were NOT annealed bullets, the Tahr shot all died, am I doing something wrong? be a bugger if they come back to life afterward just cause you didn't anneal your bullets, imagine all those zombie Tahr wandering around the hills.......
    How far did you shoot your thar?

  5. #20
    Caretaker
    Join Date
    Dec 2011
    Location
    Hawkes Bay
    Posts
    8,756

    Projectile annealing

    Quote Originally Posted by 300CALMAN View Post
    Is this a piss take?
    Projectile annealing "info" aside -there is a far better on game performance gain with J4 jacketed projectiles in keeping the meplat diameter above 24 thou for reliable expansion, any smaller and "pencilling through" can occur with enough regularity to cause concern.

    Use a whidden trimmer and pointer to improve BC and you will have very unreliable expansion on game with J4 jacketed projectiles.











    Most if not all hunting projectiles have a decent meplat dia and when kept above 24 thou will give reliable terminal performance on game more so than annealing the projectiles nose forward of the ogive.

    Earlier Berger projectiles often had meplat diameters smaller than 10 thou, their 180g 7mm projectiles occasionally surprised with their lack of terminal performance on game and that encouraged experimentation.

    Plenty of SST/amax projectiles and bic biro pens lost their roller tips in the quest to have a large meplat hidden by a high BC tip, which worked but the early Berger projectiles are tedious to modify.

    Kevin Cram from Montour County Rifles designed and marketed a set of tools to modify meplats on the earlier Berger type projectiles


    This uniformed and trimmed not only the outside of the projectile tip but inside the meplat hole as well, restoring the on game performance to be as reliable as possible. So we can see the modification has been around and tested plenty.

    There is a risk with annealing projectiles, -the negative effect of bonding the lead core with the jacket in an unreliable way, a spin stabilised projectile subjected to many rpm detests in flight yaw and wobble, major decayers of practical BC
    Last edited by 7mmsaum; 28-04-2017 at 11:59 PM.
    Rich007 and Puffin like this.
    A big fast bullet beats a little fast bullet every time

  6. #21
    Member sneeze's Avatar
    Join Date
    Dec 2011
    Location
    nelson/marlborough
    Posts
    3,349
    Just how far did you shoot your tahr
    was it near or was it far
    was it right up close
    or way way over thar.
    Did it fall down dead
    from a shot to the head
    or stagger a bit from to hard of lead
    Did you should you apply some heat
    to allow the bullet to destroy more meat
    or did you should you just go a hunt
    and leave warming bullets to some other ..... see you next tuesday
    "You'll never find a rainbow if you're looking down" Charlie Chaplin

  7. #22
    Almost literate. veitnamcam's Avatar
    Join Date
    Dec 2011
    Location
    Nelson
    Posts
    24,745
    Quote Originally Posted by Puffin View Post
    Using the same reasoning, no-one would anneal case necks without similar equipment ? The benefits can still be enjoyed without the precise quantifying you are proposing. Visually the tips of Berger bullets have not been annealed as a final treatment so annealing by the end user will soften the copper to some degree, the amount and resulting benefit that can be determined by observing any improved end performance on game. The end result is all that is important. Anneal just the tips with the bullets held upright to retain any lead that melts; problem solved.
    I am reminded of @R93 signature

    Do what you want ya will anyway!
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

  8. #23
    Member 300CALMAN's Avatar
    Join Date
    Dec 2014
    Location
    NZISTAN
    Posts
    5,215
    Yep I have chomped the tips off a few FMJs and cross cut a couple of .22s

    I can prefer to leave bullet modification to the manufacturers these days.

  9. #24
    Member
    Join Date
    Apr 2016
    Location
    Taupo
    Posts
    134
    Good discussions
    Keep it running, it's all new to me,
    Nice poem Sneeze
    I don't get the dislike of Nathan Foster. Seem like some of you guys know him personally.
    I have his reloading book and it's pretty good. Sure the annealing things a bit different but he seems like he knows what he's up to and certainly has experience.

    Thanks 7mmSAUM for your post. I wasn't aware of any of that. I didn't realise you could play around so much with a projectile.
    I was hoping someone might be able to explain the physics behind annealing and what exactly it's purpose is to improve it over the base projectile . I'm a chemical engineer so understand a lot of the chemistry and metal grain structure with annealing, but can't see how it relates to hunting performance. Or much about bullet construction at all really. Maybe I should go and read Nathan Fosters articles.
    Anyway good work.
    Cheers
    Dan

  10. #25
    Lovin Facebook for hunters kiwijames's Avatar
    Join Date
    Feb 2012
    Location
    Hawkes Bay
    Posts
    7,094
    1. Stop over thinking it. It's a bullet. If it doesn't work for you, try another one.
    2. Go hunting. Talking hunting and doing hunting are different things.
    sneeze, BRADS, shooternz and 1 others like this.
    The range of what we think and do is limited by what we fail to notice. And because we fail to notice that we fail to notice, there is little we can do to change; until we notice how failing to notice shapes our thoughts and deeds

 

 

Similar Threads

  1. Annealing
    By WillB in forum Reloading and Ballistics
    Replies: 49
    Last Post: 22-01-2017, 06:51 PM
  2. Simple annealing
    By 223nut in forum Reloading and Ballistics
    Replies: 6
    Last Post: 29-08-2016, 09:30 PM
  3. Another annealing machine
    By chalkeye in forum Reloading and Ballistics
    Replies: 6
    Last Post: 23-05-2016, 06:45 PM
  4. Annealing machines?
    By kimjon in forum Reloading and Ballistics
    Replies: 27
    Last Post: 28-04-2015, 01:02 PM
  5. annealing cases
    By longrange308 in forum Reloading and Ballistics
    Replies: 21
    Last Post: 19-05-2014, 09:39 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!