About Puffin

Basic Information


About Puffin
Location:
Porirua
Interests:
HVNZDA range
Occupation:
Electronics engineer

Statistics


Total Posts
Total Posts
977
Posts Per Day
0.22
General Information
Last Activity
Yesterday 10:38 PM
Join Date
11-05-2012
Referrals
2

2 Friends

  1. 2post 2post is offline

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    2post
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941 Likes

  1. ebf
    ebf liked post by Puffin On thread : An accuracy challenge
    I checked a couple of loads at Kaitoke yesterday afternoon in perfect conditions; no wind and overcast. The long range hunting project is shooting well and as usual there is no way I can keep up....
    Liked On: 19-07-2017, 09:40 PM
  2. Wirehunt
    Wirehunt liked post by Puffin On thread : Cooked my brass, Whoops
    Agree. I'm assuming that time is fixed, but no figure has been given, and then the crossing of the data plots in figure 10-33 is unintuitive. Also online searches reveal a differing in opinion over...
    Liked On: 16-07-2017, 08:27 PM
  3. Fisherman
    Fisherman liked post by Puffin On thread : Bullet seating centricity any tricks and tips?
    New Lapua brass can be quite undersized in the neck generating heavy neck tension. Some seating dies may deal with this better than others. Things could straighten up on once-fired brass when you get...
    Liked On: 16-07-2017, 12:05 AM
  4. omegaspeedy
    omegaspeedy liked post by Puffin On thread : Bullet seating centricity any tricks and tips?
    New Lapua brass can be quite undersized in the neck generating heavy neck tension. Some seating dies may deal with this better than others. Things could straighten up on once-fired brass when you get...
    Liked On: 14-07-2017, 10:00 PM
  5. ebf
    ebf liked post by Puffin On thread : Signs of pressure in a 6.4x47
    Thanks Guys, some useful information. This is a great topic and now that we have grown tired of discussing ladders, OBT, OCW, and 3-shot groups, doesn't this deserve its own thread at some...
    Liked On: 13-07-2017, 07:21 PM
  6. Gillie
    Gillie liked post by Puffin On thread : Ruahine NZDA Hunter's Biathlon 2017
    I've offered to help out at one of the stations and do some spotting for you guys as required. To be clear that means in this case confirming where shots have hit. It will be good to put some names...
    Liked On: 08-07-2017, 12:21 AM
  7. P38
    P38 liked post by Puffin On thread : Ruahine NZDA Hunter's Biathlon 2017
    I've offered to help out at one of the stations and do some spotting for you guys as required. To be clear that means in this case confirming where shots have hit. It will be good to put some names...
    Liked On: 07-07-2017, 10:19 PM
  8. Timmay
    Timmay liked post by Puffin On thread : Sako 85 in 6.5x55 - should I?
    If going with a short action then - as has been pointed out - the 6.5x47 gives the most flexibility for bullet seating. To provide some figures I load 140gr VLDs out to 71mm (70.6mm is just touching...
    Liked On: 05-07-2017, 08:04 AM
  9. Feather or Shoot
    Feather or Shoot liked post by Puffin On thread : Cooked my brass, Whoops
    Agree. I'm assuming that time is fixed, but no figure has been given, and then the crossing of the data plots in figure 10-33 is unintuitive. Also online searches reveal a differing in opinion over...
    Liked On: 04-07-2017, 02:08 PM
  10. Feather or Shoot
    Feather or Shoot liked post by Puffin On thread : Cooked my brass, Whoops
    For steels, not for brass according to the literature. Not completely unfortunately. The head around the perimeter for the few millimetres where it emerges from the chamber - from the upper...
    Liked On: 04-07-2017, 02:03 PM
  11. Awaian
    Awaian liked post by Puffin On thread : Cooked my brass, Whoops
    Agree. I'm assuming that time is fixed, but no figure has been given, and then the crossing of the data plots in figure 10-33 is unintuitive. Also online searches reveal a differing in opinion over...
    Liked On: 04-07-2017, 09:31 AM
  12. Feather or Shoot
    Feather or Shoot liked post by Puffin On thread : Cooked my brass, Whoops
    Feather or Shoot I recently came across the following: http://web.nchu.edu.tw/~jillc/me/Ch10-%20Kinetics%20-%20Heat%20Treatment.pdf Pages 33-37
    Liked On: 30-06-2017, 11:05 PM
  13. PERRISCICABA
    PERRISCICABA liked post by Puffin On thread : An accuracy challenge
    I checked a couple of loads at Kaitoke yesterday afternoon in perfect conditions; no wind and overcast. The long range hunting project is shooting well and as usual there is no way I can keep up....
    Liked On: 17-06-2017, 05:58 PM
  14. hillclima
    hillclima liked post by Puffin On thread : Differences between Trajectory Simulators
    Related and perhaps of interest to some: http://appliedballisticsllc.com/Truth%20In%20Performance/Hornady4DOF.pdf http://www.hornady.com/assets/files/faqs/4DOF-Response.pdf
    Liked On: 15-06-2017, 06:49 PM
  15. hillclima
    hillclima liked post by Puffin On thread : Differences between Trajectory Simulators
    OK, have now compared outputs from the Hornady 4DOF simulator with the other two and get a good match to the Applied Ballistics data. The following doc identifies the difference likely to be found...
    Liked On: 15-06-2017, 06:49 PM

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