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Results 10,441 to 10,448 of 10448

Thread: simple Hi-Tek coating

  1. #10441
    Boolit Master

    HI-TEK's Avatar
    Join Date
    Aug 2012
    Location
    Australia
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    1,492
    Quote Originally Posted by CamoWhamo View Post
    An old cartridge from 1873.

    The same powder charge, the same bullet, but one is lubed the the traditional way and the other with this modern Hi-Teknology.

    Which bullet will reign supreme

    Attachment 225548


    Loads being tested
    44-40
    New Starline Brass.
    220gn Accurate Molds 43-220C sized at .432 (bore is .431)
    Load 1. 8gn of Unique
    Load 2. 16gn 2400

    Traditional lube is LBT Blue Soft
    Hi-Tek is Old Gold

    Rifles are Miroku/Winchester Model 92's.
    CamoWhamo,

    The coating looks great, but a little over cooked. No problem at all, as long as it passes all tests OK.
    When loading and crimping, be careful that inside edge of case is not pressed too much onto alloy, as it can cause shaving of alloy.
    I don't know if you bevelled internal edge of case or not.
    Guys on this forum can advise you further.

  2. #10442
    Boolit Buddy
    Join Date
    Jan 2018
    Location
    Sydney, Australia
    Posts
    56
    Quote Originally Posted by HI-TEK View Post
    CamoWhamo,

    The coating looks great, but a little over cooked. No problem at all, as long as it passes all tests OK.
    Thanks for the heads up.

    Is it better to reduce the time or the temp?

    These were with the oven set at 200c for 10 minutes.

    My oven has pre-sets rather than fine adjustments.
    There is a setting for 192c (375f) Should i try that?

    I have tested the oven with my casting thermometer and an oven thermometer inside and they both confirmed the oven's temp matched what was set.

  3. #10443
    Boolit Man
    Join Date
    Aug 2005
    Location
    Finland
    Posts
    145
    Quote Originally Posted by HI-TEK View Post
    Ptander
    Have you any captured shot cast that can be photographed. I would like to examine a magnified surface after the alloys were shot in various guns.
    Also, any borescope pictures after shooting coated alloys, and wipe tests to show what residues were inside barrel.
    Will do some berm diggin'.

    My 9mm barrel is ridiculously clean with Hi-Tek & 3N37. 45-70 & ,N130 I have cleaned with five dry patches every 50 rounds or so. Only burning residue. I have verified the mind boggling , nonexisting 45-70 leading with Foul Out,The Dip and brass brush... it doesn't lead at all with the correct size.

    Undersized 457 bullets gave some thin leading at the muzzle end, I found many from years back and coated them. They shot fine and the very slight leading didn't build up. Just a normal brush/oil cleaning handled it. My correct size is .4595.

    In 9mm Tangwang I can shoot .357 and .358, nothing in the barrel. 358 being very accurate.

    I feel like having an endless free supply of premium 45-70 bullets now. I can shoot clays @ 75 meters with a Marlin SBL all day (factory rough bore!)

  4. #10444
    Boolit Man
    Join Date
    Aug 2005
    Location
    Finland
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    145
    Quote Originally Posted by CamoWhamo View Post
    Thanks for the heads up.

    Is it better to reduce the time or the temp?

    These were with the oven set at 200c for 10 minutes.
    Your cooking looks like mine. How much does your temp drop when you load your bullets in?

    I have a powerful oven and my temp drops to only 192 C when I load,I get slightly overcooked bullets in seven minutes. It's back to 200C in two minutes. I've been thinking about letting the temp drop a little more in the beginning,instead of a shorter time.

    My bullets are 55C when I put them in,being dried and pre-warmed on top of another oven.

  5. #10445
    I just got my order in the mail and i am going to try and make some old gold projectiles this weekend,

  6. #10446
    Boolit Master
    Ausglock's Avatar
    Join Date
    May 2010
    Location
    NSW North Coast, Australia
    Posts
    2,337
    Cam.
    Don't change anything.
    If it is working, leave it alone.
    But..... you can try 195 for 12
    Hooroo.
    Regards, Trevor.
    Australia

  7. #10447
    Boolit Master Grmps's Avatar
    Join Date
    Jul 2016
    Posts
    2,486
    Cam if you chrono'd the 2 boolits you probably found the HiTek was faster. the Hitek has much less smoke, leaves you with a clean barrel and didn't gunk up you dies/fingers

  8. #10448
    Boolit Man
    Join Date
    Aug 2005
    Location
    Finland
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    145
    Quote Originally Posted by Ausglock View Post
    Cam.

    But..... you can try 195 for 12
    195C / 12 min worked good for me, I'm trying to get back from overbaking to get the colors the way they are supposed to be. Got a nice Black Cherry batch with a hint of gold right now. Tests ok. Thanks!

    Click image for larger version. 

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    In 200C /12 min these would be all black in my oven. Even 7min/200C makes them a little dark, very good shooters though. I've experimented up to 215C ,coating works and no fear of underbaking... but no nice colours either at those temps.

    Every oven is an individual,of course. My temp @195C is the same from the beginning to the end, no initial temp drop at all. Because the oven is 215 C before I open the door and 2kW power helps,too.

    EDIT: I tried 195/12 with Kryptonite Green and it got completely toasted into bronze. I need to start making notes.

    Click image for larger version. 

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    EDIT2: While at it, I gave those another green coat 195@C/8 min. Looks more green.

    Click image for larger version. 

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    Me being the Official Mystery Metal Man, my bakings may differ from yours because of my contaminated alloy. All these shoot clean and great though!
    Last edited by Petander; Today at 07:14 AM. Reason: Add more pix

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check