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.

Terminator DPT


User Tag List

+ Reply to Thread
Page 1 of 3 123 LastLast
Results 1 to 15 of 32
Like Tree23Likes

Thread: .303 iron sights, Sporterized Long Tom.

  1. #1
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999

    .303 iron sights, Sporterized Long Tom.

    So the idea is to sort Dads Long Tom for the lad down south.

    It was plurry wet and slippery up the track, so only had a play at 100yds. I’m happy with the windage but it’s 19” high at 100.

    When it’s drier I’ll go back to 200. The rear sight can’t go any lower, it seems to me I have to raise the front blade which sits in a lateral dovetail.

    I have a Broad Arrow marked .060” front blade, but the dovetail is too small for the dovetail in the ramp.

    I was thinking of building the blade up with Devcon and filing it down to get a 200yd zero. Then measure it with the Vernier and getting it built up with weld.

    POA was lower dot.

    Name:  CB911605-FA01-493B-A318-80FB2B379FFA.jpeg
Views: 383
Size:  1.04 MB

    Name:  7A60AFDB-83D4-4C29-9387-BDA2A38A2E66.jpeg
Views: 380
Size:  1.07 MB

    Thoughts ?

    B
    Cordite likes this.

  2. #2
    Member
    Join Date
    May 2016
    Location
    Blenheim
    Posts
    1,159
    My No 4 Mk 1* was shooting about 6” high at 100, as from memory they were/are meant to. I swapped my foresight for a +90 that brought the zero down to (near enough) 100. Trouble then was that ladder site calibrations didn’t match other distances. I understand the three oh is meant to produce approx 4 moa at 100 and if so, it not accurate enough for me. I flicked mine for Swedish 6.5x55.

  3. #3
    Member Micky Duck's Avatar
    Join Date
    Apr 2015
    Location
    Geraldine
    Posts
    24,729
    nah mate...I think we have all made this mistake...the first notch was aim at belt buckle ...deer cullers held below brisket its how sights were meant to be used... our resident author will be along soon hopefully and chime in...he did a speil about how these origonal battle sights are meant to be used some time back.....
    now heathens like me took to back sight with V file and made a deep V in it....ruined its authenticness but worked to some degree.
    75/15/10 black powder matters

  4. #4
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999
    Quote Originally Posted by Ingrid 51 View Post
    My No 4 Mk 1* was shooting about 6” high at 100, as from memory they were/are meant to. I swapped my foresight for a +90 that brought the zero down to (near enough) 100. Trouble then was that ladder site calibrations didn’t match other distances. I understand the three oh is meant to produce approx 4 moa at 100 and if so, it not accurate enough for me. I flicked mine for Swedish 6.5x55.
    Yes. From what I’ve read and looking at the marking on the rear ramp it’s a 200 yd zero.

    It was Dad’s, so it’s not going anywhere, it has to be usable.

    B

  5. #5
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999
    Quote Originally Posted by Micky Duck View Post
    nah mate...I think we have all made this mistake...the first notch was aim at belt buckle ...deer cullers held below brisket its how sights were meant to be used... our resident author will be along soon hopefully and chime in...he did a speil about how these origonal battle sights are meant to be used some time back.....
    now heathens like me took to back sight with V file and made a deep V in it....ruined its authenticness but worked to some degree.
    Yes, deepening the V was a consideration, but a bit rangi bro…..

    I’ll see what’s like at 200 then reconsider.

    B
    Micky Duck likes this.

  6. #6
    Member
    Join Date
    Apr 2017
    Location
    The 'Naki
    Posts
    2,477
    I set mine at 600yds to get a 100m zero with cast 215gn boolits doing around 1500fps.
    I know a lot but it seems less every day...

    Due to the exorbitant cost of reloading components, warning shots will not be given.

  7. #7
    Member
    Join Date
    May 2016
    Location
    Blenheim
    Posts
    1,159
    Quote Originally Posted by shift14 View Post
    Yes, deepening the V was a consideration, but a bit rangi bro…..

    I’ll see what’s like at 200 then reconsider.

    B

    Devcon on foresight could be the way to go rather than deep-notching rear sight. Consider building up the shoulders of front sight with Devon before making it taller. Once dry and hard, file to desired shape/height rather than butcher original steel.
    Micky Duck likes this.

  8. #8
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999
    Quote Originally Posted by Ingrid 51 View Post
    Devcon on foresight could be the way to go rather than deep-notching rear sight. Consider building up the shoulders of front sight with Devon before making it taller. Once dry and hard, file to desired shape/height rather than butcher original steel.
    Those were my thoughts, though can’t see it being robust enough for hunting. Hence my thought of measuring total height from the base of the dovetail and building the blade up with weld, or brazing on a piece of fine rod for a bead on top of the blade, which is flat topped.

    B

  9. #9
    Member Cordite's Avatar
    Join Date
    May 2017
    Location
    NZ Mainland (Dunedin)
    Posts
    5,527
    A low hold for open iron sights is less of a disadvantage because your sights then obscure less of the target.

    40cm high is pushing it though.... Making the sight a bit taller with some Araldite (stronger, lead solder - just remove the bluing where you want the solder to stick to at the top of the post, heat to a sweat and apply a blob, file to desired shape) is a neat intervention that doesn't make any permanent change to a fine gun. These skinny money-strapped guys in the video paid a lot of taxes to manufacture it, so respect it.

    An itch ... is ... a desire to scratch

  10. #10
    Member
    Join Date
    Feb 2017
    Location
    Nelson
    Posts
    262
    What ammo are you using? The old longtoms were sighted in with the older 215gr pills, not the mk7 174gr military ammo, my long lees shoot quite high with 1950s mk7 174 ammo.
    Cordite likes this.

  11. #11
    Member
    Join Date
    Dec 2019
    Location
    Okawa Hawkes Bay
    Posts
    3,056
    Greetings @shift14,
    Lee Enfield rifles are notorious for shooting different loads to vastly different poi. If the rifle is a No1 rather than an earlier Long Tom it would have been regulated for 174 grain spitzer flat base projectiles at 2,440 fps at 300 yards. You are a lot higher than this but the rifle seems to shoot reasonably well. If you handload reduced loads with heavy projectiles may bring the poi down but the rifle will probably need to be sighted in for a specific load. A picture of the rifle and some details of the ammo would help.
    Regards Grandpamac.

  12. #12
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999
    @grangpamac, thanks for your reply.

    Pictures as requested

    Name:  FB02F7E1-F196-475B-868F-FE631B37BEF9.jpeg
Views: 615
Size:  2.23 MB

    Name:  69A61543-B9C8-4E3B-B012-65BE2FC5BAD9.jpeg
Views: 389
Size:  1.58 MB

    Name:  C10FC8EA-221B-4328-B27F-BE0CE5674B33.jpeg
Views: 351
Size:  588.2 KB

    B
    Micky Duck and Cordite like this.

  13. #13
    Member
    Join Date
    Dec 2019
    Location
    Okawa Hawkes Bay
    Posts
    3,056
    Quote Originally Posted by shift14 View Post
    @grangpamac, thanks for your reply.

    Pictures as requested

    Attachment 212526

    Attachment 212527

    Attachment 212528

    B
    That is an old one with that rear sight. It would have originally been regulated for 215 grain projectiles at a little over 2,000 fps so it is not surprising that it shoots high. A higher front sight would be the best option or an adjustable aperture sight if one can be found (unlikely). You can calculate how much higher the sight needs to be easily enough or I can calculate it for you (I just need the distance between the front and rear sights). Then it is a matter of finding a suitable replacement foresight or even filing a new one out of a block of steel. A milling machine would be faster.
    A rifle similar to yours would have been used in South Afrika or early in WW1 by NZ troops. Troops at Gallipoli had rifles sighted for Mk VI ammo with 215 grain projectiles but were only supplied with Mk VII ammo with 174 grain projectiles which shot high. Probably made FA difference due to the ranges involved in the fighting. Nice looking rifle, deserves to be taken hunting. Might be best to find something else for the boy and keep it yourself.
    Regards Grandpamac.

  14. #14
    Member
    Join Date
    Jul 2013
    Location
    Papakura
    Posts
    1,999
    @grandpamac, sage advice thankyou.

    Too many memories for me to use it. The grandfather he never knew, probably isn’t the father I did.

    He’ll look after it well, and has ample opportunity to use it down south on Canterbury porkers if not reds, instead of his Sako 300WSM.

    When things dry out up here, I’ll get back to 200yds and measure the drop on the plate with this ammunition.

    FYI I measure 16 5/8” from the back of the vee to the back of the front blade.

    Name:  46C76D0F-9500-4C32-9A61-EDDAFCF6CBEF.jpeg
Views: 330
Size:  1.10 MB

    B

  15. #15
    Member
    Join Date
    Dec 2019
    Location
    Okawa Hawkes Bay
    Posts
    3,056
    Greetings again,
    The ratio from the sight radius to the range to target is 1:218 (0.420:91.4) so to drop the POI say 450mm on target requires raising the foresight by a little over 2 mm (450/218). Others might like to check this for you.
    GPM.

 

 

Similar Threads

  1. Iron Sights for 60+
    By WillB in forum Firearms, Optics and Accessories
    Replies: 33
    Last Post: 21-01-2022, 09:42 PM
  2. Using iron sights
    By Russian 22. in forum Shooting
    Replies: 45
    Last Post: 23-09-2019, 08:18 PM
  3. Iron sights
    By johnd in forum Firearms, Optics and Accessories
    Replies: 26
    Last Post: 16-10-2018, 07:49 PM
  4. Iron sights
    By YosemiteSam in forum Shooting
    Replies: 12
    Last Post: 16-01-2018, 08:04 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!!