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.

Night Vision NZ Terminator


User Tag List

+ Reply to Thread
Page 2 of 2 FirstFirst 12
Results 16 to 21 of 21
Like Tree13Likes

Thread: Help from those with Quickload please.

  1. #16
    Member
    Join Date
    Apr 2016
    Location
    Rotorua
    Posts
    474
    Thanks, that's excellent info.
    Is there a reason to adjust the MV as opposed to BC or is it just the done thing? If the published BCs are wrong anyway would it make a difference to the trajectory outcome adjusting the BC? (not that I care which one I adjust, if I have to, just trying to understand the process).
    Short answer:- Because Bryan Litz says so!

    Slightly longer and more informative answer:- The team at applied ballistics found while doing testing with very expensive and "Lab calibrated gear" that you get best results truing the velocity first and then do a second truing of BC past the subsonic range if you intend to shoot that far.

    For the average hunter shooting inside 500, you could true either and get good results.
    the reason I suggested Muzzle velocity for you is Quickload is only a stab in the dark and the Ltiz BC I gave you will be much more accurate, (True the least known factor)
    So if I had a speed form a loading manual and a factory BC I would true Speed
    If I had a Chronographed Speed and a BC from bullet manufacturer I would true BC first.
    If I had a Chronographed Speed and a tested BC I would true speed.

    Remember BC sell bullets, so never trust a manufacturers data

    Last edited by winaa; 05-06-2020 at 11:47 AM.
    Shearer, chainsaw and Steelisreal like this.
    BC doesn't matter, until you need to dial

  2. #17
    Member
    Join Date
    Apr 2016
    Location
    Rotorua
    Posts
    474
    Also there is nothing with truing twice if you want to get real accurate. So in your case true your speed at around 300 or so then try shoot another 100-200 past that and see if things still line up, if they don't true the BC.
    Shearer likes this.
    BC doesn't matter, until you need to dial

  3. #18
    Member Shearer's Avatar
    Join Date
    Sep 2013
    Location
    Tasman
    Posts
    7,033
    Quote Originally Posted by winaa View Post
    Short answer:- Because Bryan Litz says so!

    Slightly longer and more informative answer:- The team at applied ballistics found while doing testing with very expensive and "Lab calibrated gear" that you get best results truing the velocity first and then do a second truing of BC past the subsonic range if you intend to shoot that far.

    For the average hunter shooting inside 500, you could true either and get good results.
    the reason I suggested Muzzle velocity for you is Quickload is only a stab in the dark and the Ltiz BC I gave you will be much more accurate, (True the least known factor)
    So if I had a speed form a loading manual and a factory BC I would true Speed
    If I had a Chronographed Speed and a BC from bullet manufacturer I would true BC first.
    If I had a Chronographed Speed and a tested BC I would true speed.

    Remember BC sell bullets, so never trust a manufacturers data

    Awesome. That makes sense
    Cheers.
    Experience. What you get just after you needed it.

  4. #19
    Member chainsaw's Avatar
    Join Date
    Jul 2014
    Location
    Norf
    Posts
    5,752
    excellent explanation @winaa
    Shearer likes this.

  5. #20
    Member
    Join Date
    Apr 2016
    Location
    Rotorua
    Posts
    474
    Quote Originally Posted by chainsaw View Post
    excellent explanation @winaa
    Thanks I'm glad it made sense.
    @Shearer let us know what speed truing gives you, I'm picking in the low 2500fps. I always like to see how close quickload gets, I tends to under estimate speed with 2208 in my 7mm08.
    BC doesn't matter, until you need to dial

  6. #21
    Member Shearer's Avatar
    Join Date
    Sep 2013
    Location
    Tasman
    Posts
    7,033
    Quote Originally Posted by winaa View Post
    Thanks I'm glad it made sense.
    @Shearer let us know what speed truing gives you, I'm picking in the low 2500fps. I always like to see how close quickload gets, I tends to under estimate speed with 2208 in my 7mm08.
    Will do. Not sure how long it will take me to get around to it though.
    Experience. What you get just after you needed it.

 

 

Similar Threads

  1. can someone 'quickload' something for me?
    By sixtus in forum Reloading and Ballistics
    Replies: 3
    Last Post: 14-11-2019, 04:45 AM
  2. Looking to get quickload
    By johnd in forum Reloading and Ballistics
    Replies: 9
    Last Post: 30-10-2019, 08:03 AM
  3. Does anyone have Quickload
    By winaa in forum Reloading and Ballistics
    Replies: 13
    Last Post: 06-02-2018, 10:21 PM
  4. Quickload help please
    By sparky1000 in forum Reloading and Ballistics
    Replies: 9
    Last Post: 13-01-2017, 10:09 PM
  5. Quickload?
    By Shamus in forum Reloading and Ballistics
    Replies: 1
    Last Post: 15-08-2014, 11:57 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!!