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Thread: 350 Legend and Cast Boolits

  1. #441
    Boolit Man
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    Quote Originally Posted by 44Blam View Post
    Y'all, I think I may have a little secret sauce with this one...
    Hodgdon is calling for W296 in the 350 legend... BUT what about AA #11???
    Seems like you can get a 125 grain boolit in the 2700 fps range and a 180 in the 2200 fps???

    UPS is coming tomorrow with the upper...

    Forgive me but I'm gonna dream a little.
    Thought I posted this info in this thread but it may have been another. I have used w296 with a 90gr Lehigh extreme penetrator and had it going from 2980 to 3200fps starting at 29g of powder.

    FYI, on the higher end of the spectrum I had gotten some loose primer pockets.

    I know, not cast but it at least gives you an idea of possibility.

    Wanted to used the AA 11fs but it’s difficult to find around here.

  2. #442
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    I have been trying some subsonic loads. Using heavy cast bullets I have a 135 green white flat nose and a 270 grain flat point. Investigating with quick loads I discovered Herco powder, as a good option for these loads. Seven grains that's me 1100 fps on QL W/16" bbl. ( bolt) its quite safe as much more can be used and its bulky so not a tiny splash of powder either!
    Accuracy with both has been very good! Im svg 1040/270g & 1085 w/235g.

    I DO see a tail wag in 270 holes. Today I tried 8g yo see if a boot in the bum wouldnt stabulize better. That load is avg 1090 and YES its better but still a alight mark showing issue. BUT accuracy is veru good @1" @50 & 4" @100 ( 24" low)

    Ext is 8.5g to see if its more stabule.

    CW
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  3. #443
    Boolit Man
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    What mold is the 270 your using? I’m looking for a nice heavy boolit to run subs with the AR. I know the saeco 352? Is out there but darn it’s expensive. May just have to make my own mold.

  4. #444
    Boolit Master Dapaki's Avatar
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    I put some 200gr LFP down range today and hit 1600fps using a duplex load of 4gr Silhouette under 25gr WC867. I tried 4gr of IMR 2400 but that only got me 1500fps and red dot was a huge fail with 4gr giving me only 1300fps!

    The big surprise was IMR 4198 with only 1520fps using 4gr as the kicker. In the .223, it was the fastest..... bottleneck?

  5. #445
    Boolit Master


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    Yesterday I tested the lee 358-200
    50/50 alloy no gaS check sized to .357” using an expander for .358”
    50/50 alloy with gas check. Sized to .357” with a regular expander
    WDWW no gas check. .357” with regular expander
    WDWW with gas check .357” with regular expander.
    These were all loaded with 26 grains of CFE BLK

    as expected the gas check bullets shot much better. I was only shooting at 25 yards because I had just mounted the eotech and wasn’t sure where it was hitting. Also a poor rest and I’m not a very good shot to begin with.
    So the 50/50 GC shot about 1.5” and the WDWWGC shot about 1.25” I guess I’m going to have to give in to the gas check. Time to order a free Chex

  6. #446
    Boolit Master Dapaki's Avatar
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    Quote Originally Posted by Michael J. Spangler View Post
    Yesterday I tested the lee 358-200
    ....
    What were your speeds?

  7. #447
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    I would have to check the notebook. I didn’t chrono then this time but last time I was playing with the legend I was around 1850 if I remember correctly.
    I went with CFEBLK because the pressure were low for the same speeds. I’m not sure you could get any more powder in there. It’s pretty much full.

  8. #448
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    Quote Originally Posted by Gone_rabid View Post
    What mold is the 270 your using? I’m looking for a nice heavy boolit to run subs with the AR. I know the saeco 352? Is out there but darn it’s expensive. May just have to make my own mold.
    My mold is a Accurate mold. I made of video of casting with it.

    https://youtu.be/T1-1Q5XL8cA

    Im seating to 2.255 ish. If I go much more that flat meplat hangs a bit in the mag.
    CW
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  9. #449
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    Quote Originally Posted by cwlongshot View Post
    My mold is a Accurate mold. I made of video of casting with it.

    https://youtu.be/T1-1Q5XL8cA

    Im seating to 2.255 ish. If I go much more that flat meplat hangs a bit in the mag.
    CW
    Good to match a face with a personality. Good video.
    You never know how you rank amongst men 'til you have seen what will break another man.
    The original "Bluejay" US Army/ US Navy 1945-1970.

  10. #450
    Boolit Master mehavey's Avatar
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    I'm calculating that the ACC_36-270 produces an OAL about like this in the LEGEND ?


  11. #451
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    I seat mine to 2.255 ish... longer and they hang up in the magazine.

    Your pic represents almost exactly where Im seating too. Just a tad deeper.

    Scroll down the 25th posting.

    http://bushcraftusa.com/forum/thread...thread.274996/

    CW
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  12. #452
    Boolit Master mehavey's Avatar
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    Sure looks (surprisingly) like a wide range of powder options for SUBSON

    Click image for larger version. 

Name:	350LEGEND_SubSonicACC_36-270_sm.jpg 
Views:	78 
Size:	167.8 KB 
ID:	265668
    (I'm a little short on the OAL in the calcs, but you get the picture)

  13. #453
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    Those loads will not have the gas to operate a AR15 from that chart. Maybe if you have a pistol length gas port.

  14. #454
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    Quote Originally Posted by tomme boy View Post
    Those loads will not have the gas to operate a AR15 from that chart. Maybe if you have a pistol length gas port.

    Ooh man always someone pokin holes in anothers fun! .
    Yea Im sure your right TB. At this time I dont have a semi to test in. Still looking for a bbl. but because of these tests I might be just fine staying 16:1 as accuracy is very good with slight evidence of wiggles. Im sure its gonna be tumble city upon impacting flesh.

    My buddy has a upper in 350. But forgot to bring it last week.

    CW
    Last edited by cwlongshot; 08-04-2020 at 09:19 AM.
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  15. #455
    Boolit Man
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    On an ar15 10.5 Beowulf, so far, was able to get it to eject with green dot but not enough to lock back on the mag. This is also suppressed and an H2 buffer. It may work with a standard buffer and a little more powder. The Beowulf pressure is around 33k.

    I wonder with the higher pressure of the greens dot on the 350 if it may Work.

  16. #456
    Boolit Master


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    It will be something Ill Make happen once I can build mine..

    (My post came off snarky. For others info, Tommy and I talk allot on this and other forums not causing problems with him.)

    CW
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  17. #457
    Boolit Master mehavey's Avatar
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    Those loads will not have the gas to operate a AR15 from that chart.
    Maybe if you have a pistol length gas port.
    Dunno... but already have Tom's ACC 36-270CG on the way
    So we'll see.....


  18. #458
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    Quote Originally Posted by mehavey View Post
    Dunno... but already have Tom's ACC 36-270CG on the way
    So we'll see.....

    Hope ya like it a d it works as well for you!! I bought it for my 358Norma Mag but my 358 & 35 Whelen would see it too. I have only used it in the NM with TB but it shot very well @ 1700 fps!!

    Now with this 350Legend Im really thinking I am onto something as my 1:16 is providing great groups yet the bullets shows signs of serious tumble
    Potential once in flesh. Id like a 1:14 AR barrel and Ill buy If I can find what I want withbthat.

    CW
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  19. #459
    Boolit Master Oldfeller's Avatar
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    Quote Originally Posted by 44Blam View Post
    I've got some 35 caliber aluminum gcs... I know it won't work with that particular boolit, but maybe you can cut a GC shank? PM me if you want a few.
    44Blam,

    Your care package of aluminum can gas checks was received today. They are very nicely made and look like something that could work out fine if I build a little tool to put a tiny recess or bevel edge on the bottom of the coated cast bullet.

    A tiny care package like this answers questions that otherwise get no answer ---- wife is now retired as well and now there is no flow of play dollars for me to send off buying stuff as I used to do ......

    All retired now, just growing tomatoes and building and shooting my guns.

  20. #460
    Boolit Master


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    I Found quite an accuracy node...

    https://youtu.be/31xsOIMEUvg

    CW
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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