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Thread: What alloy for fast speeds?

  1. #1
    Boolit Master brewer12345's Avatar
    Join Date
    Sep 2017
    Denver Metro Area

    What alloy for fast speeds?

    I would like to experiment with harder alloys for a rifle boolit that I can hopefully push to high speeds. Why? Because it is fun and interesting to play with this stuff. I came into a generous supply of lino, and I also have on hand pure, COWWs, and pewter. The boolit I have in mind is the Lee 30 cal soup can. Cast out of 94-3-3 and air cooled, this boolit is very, very accurate and tight grouping at 100 yards with a modest charge of Unique and does perhaps 1600 FPS out of my 30-06. Lyman #4 lists loads that have this boolit zipping along at way over 2000 FPS and I wonder if I can do something similar if I change my alloy and perhaps powder coat it. The rifle in question has a 1 in 11" twist. So should I try 90-5-5 (Lyman #2 alloy), 92-6-2 (modern substitute for original Lyman #2), a higher ratio of lino, something else?
    "I have learned from experience that a modicum of snuff can be most efficacious." - the Baron von Munchausen

  2. #2
    Boolit Master pjames32's Avatar
    Join Date
    Sep 2014
    NW New Mexico
    Water drop it! 94-3-3 works great over 2000fps
    NRA Benefactor Member

  3. #3
    Boolit Master
    Join Date
    Sep 2010
    I use clip on wheel weights with a little added tin and get 2400fps with accuracy after I Hi-Tec coat them. Fit and barrel twist mean more in my view. Regards Stephen

  4. #4
    Boolit Grand Master

    Lloyd Smale's Avatar
    Join Date
    Mar 2005
    munising Michigan
    anything from water dropped ww to straight lino to 5050 lino/ww works fine. Your group size will tell you which your gun prefers.
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

  5. #5
    Boolit Master

    Kraschenbirn's Avatar
    Join Date
    Dec 2006
    East Central IL
    I'm using Lyman #2 PC'd with Smoke's Clear for both .308 Win and 7.5x55 Swiss at around 2100 fps. Off sandbags, 2 1/2"-3" groups (10 shots) from my Savage M10LE @ 200 yds and about the same at 100 yds from the K31 using issue sights.


    (For some reason, pic is rotated 90 deg. Tried rotating file on my desktop but still off 90 deg. when attached to post??)

    200 yd. group shot off sandbags w/Savage M10LE (24" barrel), Weaver 3-15X50 'tactical' scope. Load is Arsenal 30-188PC/Smoke's Clear over 31.0 gr. H4895 in FC milsurp cases. Avg MV 2160 fps (10-shot string). Max. spread: 2.72"
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Kraschenbirn; 10-31-2018 at 01:14 PM. Reason: Added Pic
    "I'm not often right but I've never been wrong."

    Jimmy Buffett
    "Scarlet Begonias"

  6. #6
    Boolit Master Petander's Avatar
    Join Date
    Aug 2005
    These are ten+ years old Lyman 311679 boolits, 50/50 WW/Monotype. BHN still 16-18.

    I made a bunch for subsonic 308 use,the project is still going on. Switched to J back then.

    I might as well coat these now and load faster, I have no idea why I used this hard an alloy for subsonics. Maybe I was even more stupid than I am now?

    Click image for larger version. 

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  7. #7
    Boolit Buddy
    Join Date
    May 2016
    NW Oklahoma
    IMHO you are on the right track with the soup can. The shorter, squat boolits with water quenching should get to 2000+ fps easily. May not hold up at longer distances but a good place to start on HV. You can use a good lube and do very well or you can use HiTek or powder coat, your preference

  8. #8
    Boolit Master
    WHITETAIL's Avatar
    Join Date
    Jan 2007
    NE Pa.
    Yes, I also think if you PC them you should be on the right track.
    Beer is proof that God loves us and wants us to be happy!
    Ben Franklin

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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