Results 1 to 8 of 8

Thread: Hornady Headspace Comparator

  1. #1
    Join Date
    Feb 2011
    Location
    Paisley
    Posts
    524

    Hornady Bullet Comparator

    Hi Guys looking for one of the above and what insert is it I need for my .223 reloading .224 and I notice Bushwear only say .22 caliber so if any one has one for sale let me know thanks for looking
    Last edited by blueheckle; 02-06-2018 at 06:32 AM.

  2. #2
    Join Date
    Apr 2005
    Location
    Taunton
    Posts
    9,119
    The precise calibre doesn't matter as it measures off the ogive, so a .22 will be the one for you.

  3. #3
    Join Date
    Oct 2007
    Location
    Woking
    Posts
    1,276
    Sinclair do a multi calibre hex nut looking comparator which may be worth a look
    Better To Be Tried By Twelve Than Carried By Six

  4. #4
    Join Date
    Jan 2010
    Location
    Reading
    Posts
    2,168
    Check out the Shooting Shed too.

  5. #5
    Join Date
    Feb 2011
    Location
    Paisley
    Posts
    524
    Got one guys just need the long gauge to get my OAL , also need to get a bushing for my Redding Comp Neck die tks again for the help, Ps do you guys crimp and do you FS/ or neck size

  6. #6
    Parabuteo is offline My Chrony has bought it a couple of times...
    Join Date
    Mar 2006
    Location
    Southampton
    Posts
    6,061
    Quote Originally Posted by blueheckle View Post
    Got one guys just need the long gauge to get my OAL , also need to get a bushing for my Redding Comp Neck die tks again for the help, Ps do you guys crimp and do you FS/ or neck size
    FS/Neck depends on what you are after achieving. If you dont need to work the brass, then dont. More work means more work hardening which in turn means neck splits and case head separations will follow sooner, particularly if you FL size and the die is not set up properly for your rifles headspace. You do not need to bump the shoulders back more than 2 thou.

    Crimping is a military expedient normally allied to pitch sealing of both the neck and the primer to keep the round weather proof. The crimp keeps the bullet tight in place where rounds are bounced about and vibrated in automatic weapons, aircraft etc however....

    One of the reasons people load into the landes is to attempt to get a more consistent let off point which in turn can give a more consistent harmonic and tighter group. The downside is that it can cause dangerous spikes if you get it wrong, but certainly getting the OAL right has a huge effect on group sizes.

    Lee claim that crimping has a similar effect to the above by, to an extent (as the inherent neck tension will be over the full bearing surface of the bullet and not just the canelure) creating a more consistent neck tension/let off point (or spike if you like).

    I cant argue that either way, but what I have seen is that because all of my rifles are mag fed, I cannot load into or near the landes, and I was told to crimp my rounds for CSR use as it can tighten up the group.

    It worked so I tried it on my .303 and .308 and it also produced better groups when applied to a round with an OAL on or near to spec. The dies are not expensive but it will require that the cases are kept properly and consistently trimmed.

    In my opinion, it is an operation that is probably not worth doing unless you cannot safely reach a satisfactory group by seating for the rifle or bash the ammo about a bit (like chucking it into the splines of an AR barrel extension).

    It is one more (albeit small) operation that will work the brass a bit more. Contrary to popular belief you do not need to have bullets with canelures in order to crimp as the crimp forms one, although when I crimp with canelures I do seat the bullet so that the neck rim goes just over the cenelure when seated.

    Your choice It cant do any harm.
    I'm a maggot in another life you know

  7. #7
    Parabuteo is offline My Chrony has bought it a couple of times...
    Join Date
    Mar 2006
    Location
    Southampton
    Posts
    6,061
    Quote Originally Posted by mag44uk View Post
    Check out the Shooting Shed too.
    The best available IMHO.
    I'm a maggot in another life you know

  8. #8
    Join Date
    Feb 2011
    Location
    Paisley
    Posts
    524
    once again thanks for the input

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •