making a new bullet

Discussion in 'Reloading Forum (All Calibers)' started by crustyrusty, Jul 18, 2019.

  1. crustyrusty

    crustyrusty Silver $$ Contributor

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    what does it take to take a 7mm 100gr or 110gr or 120gr bullet and trim the heel off and lightening them up to 85gr? has anyone done this? is this do-able? or can I take a 270 bullet (6.8)and "bump" it up to 7mm ?? thoughts and Ideas!!!
     
  2. Ledd Slinger

    Ledd Slinger Gold $$ Contributor

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    Had to check the calendar on this one to make sure it wasnt April 1st ;)

    Both are bad ideas. Look into bullet making dies and tools. They are expensive though so probably not worth it.
     
  3. LA50SHOOTER

    LA50SHOOTER Silver $$ Contributor

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    Why ? - If you don't mind telling us ? - What "gain(s)" in particular are you looking to achieve by doing this ?
    The 100 gr. Sierra is a good light-weight 7mm bullet (for Varmints & target shooting) - The 120 gr. Sierra does well on deer sized game.

    IF you "just have to have it" - Then a custom bullet maker should be considered. - I'm sure there's someone in the "nitch" bullet making business that could provide you a 85 gr. 7mm bullet. - I don't have my bullet makers list from Corbin with me as I'm at work right now.

    - Ron -
     
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  4. crustyrusty

    crustyrusty Silver $$ Contributor

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    well all of the this effort is to get a bullet that will work in the Sako 7x33 which uses a 78gr speedhead bullet available only from Australia,, and I am tying to figure out how to get the from there to here but ATF is not playing ball,, so on another forum on guy just mentioned to trim the heel I suppose he ment to cut it off?,, and another one suggested "bumping up" a 6.8 cal bullet..
     
  5. Zero333

    Zero333

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    Just use the 100 gr Sierra HP. It will work just fine.

    I can give you Quickload data with the 100gr HP for the 7x33 Sako.
     
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  6. greisdor

    greisdor Gold $$ Contributor

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    Just a thought - maybe use a Whidden point die after drilling one on the point, and closing it up.....
     
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  7. geo.ulrich

    geo.ulrich beware of owner Gold $$ Contributor

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    I have made some 7 mm 85-100. its really not worth it monetarily unless you have an inside with a jacket co. for a supply of jackets. best to just buy sierras, also you will not bump a .270 to .284 7mm 100gr.JPG
     
  8. jr600yd

    jr600yd Gold $$ Contributor

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    Rebarrel!
     
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  9. MislMan

    MislMan Silver $$ Contributor

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    Can you just imagine what cutting off the end of a bullet does to the center of gravity and balance of the bullet.
     
  10. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Would the core just melt out like it does from the front when theyre overspun?
     
  11. Ledd Slinger

    Ledd Slinger Gold $$ Contributor

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    I wouldn't think so because some of the Nosler Partition bullets have an open base to the rear core. Havent used the good old Partitions in quite a few years but I assume not much has changed.

    Of course Nosler may use a different core alloy in the rear to resist heat better...not sure on that.
     
  12. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Yes theyre still that way. Fmj bullets are too sometimes. I kill the hell out of animals with partitions from moose down to coyotes
     
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  13. SmokinJoe

    SmokinJoe SSOY 2004 Silver $$ Contributor

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    I think the danger of doing this is that there is a very good chance that sooner or later the core will be blown through the jacket as the bullet is propelled down the bore, then the next shot will be disastrous in some form. Partition bullets have the partition to keep the bullet sealed and together, FMJ bullets have the complete jacket to hold everything together, a cup and core bullet with the bottom of the cup cut off has no viable seal and very little structural integrity.
     
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  14. Ledd Slinger

    Ledd Slinger Gold $$ Contributor

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    Good points
     
  15. old_heli_logger

    old_heli_logger Gold $$ Contributor

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    You can change the tip of a bullet without too much affect on accuracy, but if you mess with the heel, bad things happen fast
     
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  16. damoncali

    damoncali Bullet Maker Site $$ Sponsor

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    I agree with the others that this is a bad idea for a whole lot of reasons. That said, I'd love to see someone try it and see what happens (not me, someone else ;)). My guess is that you'd wind up spending a lot of time making bullets that aren't very accurate, and that could very well come apart. Might get a little lead fouling along the way.
     
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  17. crustyrusty

    crustyrusty Silver $$ Contributor

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    there is a fella in Australia who made a device to "bump up'' 6.8 cal to 7mm (.285) I just had a conversation with him and he said no to buying his design,, but he did make reference to a company there called Simplex,, anybody heard of them?
     
  18. crustyrusty

    crustyrusty Silver $$ Contributor

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    cool that would be awesome if you could please!!!
     
  19. crustyrusty

    crustyrusty Silver $$ Contributor

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    where would on turn to to acquire bullet making tools? I figure it would be a expensive enough en devour but it may just have enough merit in the Idea... I personaly would keep to the 7mm and 6.5 mm and .375 bullets as that is what I have in my flock and I wont be getting rid of any in any time .... can someone start a "go fund me" thing? yeah I see that as a no starter as well
     
  20. Zero333

    Zero333

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    Here is the Quickload data with 100 gr Sierra HP.

    Note the COAL is the standard 1.750"... Longer COAL relieves some pressure as long as the bullet is not in the lands, and shorter COAL reduces case capacity and increases pressure a little.
    Went with 24" bbl, a MAX pressure of 38,000 psi (QL shows Maximum pressure for this cartridge at 40,611 psi). Also used 107% max case fill which is just starting to compress the powder and minimum of 80% case fill.
    There were many more powders on this list but I ignored them because they were too slow burning, not generating much pressure and giving very slow velocities.

    If there is a specific powder you want me to run in QL, let me know. I'll be happy to help.


    =========================================================

    Cartridge : 7 x 33 Sako
    Bullet : .284, 100, Sierra HP 1895
    Useable Case Capaci: 15.796 grain H2O = 1.026 cm³
    Cartridge O.A.L. L6: 1.750 inch = 44.45 mm
    Barrel Length : 24.0 inch = 609.6 mm

    Predicted Data for Indicated Charges of the Following Powders.
    Matching Maximum Pressure: 38000 psi, or 262 MPa
    or a maximum loading ratio or filling of 107 %
    These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
    C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
    loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
    that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
    and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
    USE ONLY FOR COMPARISON !

    Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
    % Grains Gramm fps % psi psi ms
    --------------------------------- -----------------------------------------------------------------
    Hodgdon Lil'Gun 91.9 13.9 0.90 2246 100.0 38000 2590 1.278 ! Near Maximum !
    Winchester 296 90.1 14.1 0.91 2226 94.6 38000 2803 1.299 ! Near Maximum !
    Rottweil R910 93.9 12.6 0.82 2193 100.0 38000 2321 1.282 ! Near Maximum !
    Hodgdon H110 90.4 14.1 0.92 2181 96.9 38000 2616 1.315 ! Near Maximum !
    Nitrochemie A/S 0200 96.4 14.0 0.91 2151 93.8 38000 2528 1.319 ! Near Maximum !
    Vihtavuori N110 101.2 12.5 0.81 2150 99.8 38000 2309 1.313 ! Near Maximum !
    Lovex S053 107.0 14.0 0.91 2146 95.9 37471 2486 1.316 ! Near Maximum !
    Hodgdon H4227 105.6 14.1 0.91 2133 92.2 38000 2503 1.310 ! Near Maximum !
    ReloadSwiss RS 30 98.6 12.6 0.82 2128 98.2 38000 2340 1.317 ! Near Maximum !
    Ramshot Enforcer 81.8 12.2 0.79 2124 99.8 38000 2242 1.328 ! Near Maximum !
    PB Clermont PCL 512 87.3 12.2 0.79 2120 99.8 38000 2237 1.331 ! Near Maximum !
    Alliant 2400 82.0 11.3 0.73 2116 99.5 38000 2242 1.331 ! Near Maximum !
    Vihtavuori N125 107.0 14.5 0.94 2112 93.2 34043 2536 1.349
    Accurate 5744 93.6 13.0 0.85 2110 88.8 38000 2518 1.330 ! Near Maximum !
    Lovex D060 95.8 13.0 0.85 2110 88.8 38000 2518 1.330 ! Near Maximum !
    IMR 4227 103.6 13.8 0.90 2104 90.9 38000 2418 1.322 ! Near Maximum !
    Accurate 4100 84.8 12.7 0.83 2104 98.2 38000 2269 1.334 ! Near Maximum !
    Accurate 1680 101.6 15.4 1.00 2095 82.8 38000 2484 1.329 ! Near Maximum !
    Lovex D063 91.6 13.9 0.90 2094 88.4 38000 2420 1.327 ! Near Maximum !
    Lovex S040 87.8 11.4 0.74 2076 99.4 38000 2140 1.336 ! Near Maximum !
    Somchem S265 100.2 13.4 0.87 2071 95.1 38000 2280 1.358 ! Near Maximum !
    ADI AR 2205 95.4 13.2 0.86 2054 95.9 38000 2241 1.350 ! Near Maximum !
    ADI AR 2207 107.0 14.6 0.94 2049 89.0 30005 2584 1.413
    Alliant BLUE DOT 85.2 10.1 0.65 2048 100.0 38000 1934 1.349 ! Near Maximum !
    Alliant Reloder-7 107.0 15.1 0.98 2036 85.0 31602 2483 1.408
    Nitrochemie A/S 0300 107.0 16.0 1.04 2026 80.1 30816 2614 1.415
    Vihtavuori N105 84.3 9.6 0.62 2002 100.0 38000 1664 1.363 ! Near Maximum !
    Bofors RP1 NT ~approximation 107.0 15.1 0.98 1997 78.0 35053 2266 1.387 ! Near Maximum !
    Accurate 2200 107.0 15.8 1.02 1988 74.7 33658 2332 1.405
    Vihtavuori N120 107.0 14.2 0.92 1983 89.9 28470 2387 1.449
    Hodgdon H4198 107.0 14.6 0.95 1981 78.5 34364 2223 1.400
    Vihtavuori 3N38 80.4 9.5 0.62 1976 100.0 38000 1662 1.373 ! Near Maximum !
    ADI BM2 107.0 16.6 1.08 1962 72.3 32781 2296 1.425
    IMR 4198 107.0 14.0 0.91 1952 82.7 29806 2282 1.448
    Norma 200 107.0 15.2 0.99 1944 81.2 24790 2501 1.516
    ADI AR 2219 107.0 16.1 1.04 1937 73.0 30212 2361 1.457
    PB Clermont PCL 508 (PCL223) 107.0 16.7 1.08 1931 71.5 29253 2373 1.470
    SNPE Vectan SP 10 107.0 16.6 1.08 1931 71.5 29185 2374 1.471
    Kazan Sunar 308W 107.0 15.2 0.99 1920 79.8 28207 2272 1.487
    SF033 fl, russ. 5,45x39 107.0 15.9 1.03 1916 80.5 25038 2526 1.526
    Hodgdon H335 107.0 17.0 1.10 1912 70.3 29481 2341 1.477
    ADI AR 2210 107.0 16.1 1.04 1907 70.3 29938 2228 1.474
    ADI AP 100 84.7 8.5 0.55 1906 100.0 38000 1495 1.395 ! Near Maximum !
    ReloadSwiss RS 40 107.0 15.9 1.03 1887 71.3 27595 2276 1.507
    Alliant Reloder-10x 107.0 14.7 0.95 1881 77.6 24318 2354 1.549
    Vihtavuori N130 107.0 14.6 0.94 1824 77.0 24261 2139 1.579
    Hodgdon H322 107.0 15.1 0.98 1808 68.9 24899 2133 1.576
    Alliant Reloder-12 107.0 15.9 1.03 1808 69.9 25310 2115 1.572
    Lovex D073.4 107.0 16.7 1.08 1797 65.3 25014 2113 1.579
    Hodgdon Benchmark 107.0 15.3 0.99 1789 67.1 25262 2018 1.584
    Ramshot X-Terminator 107.0 16.6 1.08 1788 62.5 26091 2017 1.572
    Somchem S321 107.0 16.8 1.09 1774 62.7 24194 2105 1.603
    Accurate 2015 107.0 14.9 0.97 1773 72.6 21396 2154 1.643
    Vihtavuori N530 107.0 15.7 1.02 1772 63.2 24560 2050 1.598
    Accurate 2230 107.0 16.9 1.09 1764 61.9 25146 2015 1.594
    Winchester 748 107.0 16.8 1.09 1760 60.5 24974 2032 1.600
    PB Clermont PCL 507 107.0 16.3 1.05 1754 61.8 23939 2019 1.616
    Accurate 2460 107.0 16.8 1.09 1753 63.5 22629 2087 1.640
    Lovex D073.5 107.0 16.7 1.08 1746 63.2 22401 2076 1.646
    IMR 8208 XBR 107.0 15.6 1.01 1741 62.4 23473 1965 1.629
    ADI AR 2206 107.0 15.4 1.00 1736 63.5 24634 1882 1.620
    Bofors RP11 TZ ~approximation 107.0 15.2 0.98 1729 68.7 21703 2088 1.664
    Alliant AR-Comp 107.0 15.1 0.98 1718 68.2 21348 2064 1.675
    Lovex S060 107.0 15.2 0.98 1716 62.0 23762 1855 1.642
    Ramshot TAC 107.0 16.8 1.09 1716 56.2 24446 1871 1.630
    Ramshot Wild Boar 107.0 16.6 1.08 1710 57.3 23390 1914 1.647
    Bofors RP2 NT ~approximation 107.0 15.5 1.00 1709 61.2 23630 1855 1.644
    Hodgdon CFE223 107.0 17.4 1.12 1703 54.7 24013 1880 1.645
    Rottweil R901 107.0 14.8 0.96 1696 65.5 18789 2043 1.743
    Somchem S335 107.0 15.2 0.99 1694 67.5 20503 1943 1.702
    NitroKemia REX 3/Green/36 84.8 6.8 0.44 1692 100.0 38000 1057 1.516 ! Near Maximum !
    Vihtavuori N133 107.0 14.3 0.92 1691 69.9 21221 1873 1.692
    Hodgdon H4895 107.0 15.6 1.01 1690 58.6 21182 1936 1.690
    ADI AR 2206H 107.0 15.6 1.01 1684 57.9 21191 1909 1.693
    Norma 202 107.0 15.3 0.99 1678 62.8 20313 1950 1.712
    Hodgdon BL-C2 107.0 17.0 1.10 1677 56.4 21906 1935 1.689
    NitroKemia REX 2/Yellow/32 83.4 6.4 0.42 1675 100.0 38000 1032 1.524 ! Near Maximum !
    NitroKemia REX 1/Red/28 83.2 6.5 0.42 1668 100.0 38000 1046 1.522 ! Near Maximum !
    SNPE Vectan SP 9 107.0 16.1 1.04 1667 56.6 21723 1832 1.694
    Somchem S341 107.0 16.8 1.09 1662 55.7 22870 1775 1.681
    Vihtavuori N540 107.0 15.7 1.02 1638 60.6 19568 1877 1.751
    Norma 201 107.0 15.2 0.99 1637 59.3 18765 1881 1.762
    Vihtavuori N140 107.0 15.3 0.99 1633 61.8 19876 1808 1.746
    Accurate 2520 107.0 16.4 1.06 1632 57.7 19723 1903 1.757
    PB Clermont PCL 516 107.0 16.6 1.08 1632 52.4 21774 1730 1.714
    SNPE Vectan SP 7 107.0 16.7 1.08 1623 52.7 21250 1749 1.735
    IMR 3031 107.0 14.6 0.94 1618 59.5 18622 1826 1.777
    IMR 4895 107.0 15.6 1.01 1610 53.6 19134 1795 1.770
    ADI AR 2208 107.0 15.1 0.98 1603 54.6 20065 1668 1.758
    Hodgdon VARGET 107.0 15.1 0.98 1597 54.4 19878 1658 1.765
    Rottweil R902 107.0 15.0 0.97 1594 58.0 17781 1790 1.808
    IMR 4320 107.0 15.3 0.99 1593 52.3 20164 1580 1.767
    Raufoss RA11 107.0 15.6 1.01 1589 52.5 18874 1731 1.788
    Bofors RP11 ~approximation 107.0 15.6 1.01 1589 52.5 18874 1731 1.788
    Alliant Reloder-15 107.0 15.6 1.01 1589 52.5 18874 1731 1.788
    Lovex D073.6 107.0 16.1 1.04 1588 56.1 18395 1817 1.809
    Ramshot Big Game 107.0 16.6 1.08 1581 49.5 20135 1607 1.775
    Norma 203B 107.0 15.6 1.01 1578 52.6 18477 1722 1.803
    ReloadSwiss RS 50 107.0 16.2 1.05 1574 50.8 19723 1644 1.782
    Lovex S062 107.0 15.2 0.98 1568 55.8 17593 1735 1.827
    Bofors RP7 NT ~approximation 107.0 15.7 1.02 1564 47.6 20846 1438 1.773
    IMR 4064 107.0 14.7 0.95 1560 53.7 18665 1607 1.810
    Accurate 2495 107.0 15.2 0.99 1549 59.2 14991 1951 1.910
    Elcho TR140 - preliminary data 107.0 16.1 1.04 1549 50.0 19023 1594 1.811
    SNPE Vectan SP 11 107.0 16.1 1.04 1533 47.9 18322 1531 1.839
    ReloadSwiss RS 52 107.0 16.1 1.04 1529 47.9 18319 1547 1.843
    Hodgdon H380 107.0 15.9 1.03 1516 48.3 17684 1591 1.869
    Bofors RP3 NT ~approximation 107.0 15.5 1.00 1511 47.8 18663 1422 1.846
    Vihtavuori N32C Tin Star 89.4 6.5 0.42 1496 100.0 38000 794 1.667 ! Near Maximum !
    IMR 4007 SSC 107.0 15.8 1.02 1496 46.3 17996 1491 1.878
    ============================================================

    First column = Powder name
    Second column = Case fill %
    Third = Charge weight in Grains gr
    Fourth = Charge weight in Grams
    Fifth = Velocity in FPS
    Sixth = Powder burned %
    Seventh = Chamber pressure PSI
    Eighth = Muzzle pressure (irrelevant)
    Ninth = Barrel time in milliseconds (irrelevant for the most part)
     

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