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Thread: Looking for mold advice for a magazine feed 300 blk.

  1. #1
    Boolit Buddy
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    Looking for mold advice for a magazine feed 300 blk.

    I have bought a few molds for 300 blk and had some that I used in my 308 and 30-06 but keep having the same problem that is the Boolite are to short to use with a magazine feed weapon. Only the 230 gr mold works with magazine so far. I'd stick with the 230gr but looking for a lighter Boolite I'd like a 110-130gr but will take whatever works at this time.

    I have dropped a lot of money on molds that will only work with my 309, 30-06 or a 300 blk bolt gun. So looking for advice on a mold that will work! Thanks!

  2. #2
    Boolit Master
    Ed_Shot's Avatar
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    I use PMAG magazines for my 300 BO AR and never have a feeding issue with the RCBS 7.62mm-130-SPC or Lee 309-155-2R or Lyman 311299.

    What magazines are you using?
    COME AND TAKE IT
    Let’s Go Brandon!!!!

  3. #3
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    ShooterAZ's Avatar
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    I use the Lee C312-155 (sized to .310), and have no issues at all feeding through the magazines. I'm another one who uses P-Mags.

  4. #4
    Boolit Buddy
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    I think you should take a look at the 'taco' series of molds ranging from 225-130grns I believe.

    They are specifically for 300blk

    Sent from my SM-J337VPP using Tapatalk

  5. #5
    Boolit Buddy
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    Quote Originally Posted by johnsonian09 View Post
    I think you should take a look at the 'taco' series of molds ranging from 225-130grns I believe.

    They are specifically for 300blk

    Sent from my SM-J337VPP using Tapatalk
    Taco? Never heard of them who makes them?




    I have used PMAGs,colt,lancer and several other magazine.

    Trying to keep it light weight as possible but even my MP molds that I bought for my 308 that are 165+ gr are you short.

  6. #6
    Boolit Buddy
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    https://noebulletmolds.com/site/shop...3-2-cavity-pb/

    See also the htc310-225-rn for the fmt-full metal-taco variant

    Sent from my SM-J337VPP using Tapatalk

  7. #7
    Boolit Master Handloader109's Avatar
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    The heavy bullets just don't feed well. spire point will feed pretty well.

    Sent from my SM-G892A using Tapatalk

  8. #8
    Boolit Master
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    I've good luck with just about any bullet 150 grain+ with a round nose, spire point, or small meta plate. 110 to 130 grain bullets will always be very short given their small size and I've had trouble feeding even with round nose bullets. It's just too easy for them to get cockeyed going up the feed ramp and into the chamber.

  9. #9
    Boolit Buddy
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    Quote Originally Posted by reddog81 View Post
    I've good luck with just about any bullet 150 grain+ with a round nose, spire point, or small meta plate. 110 to 130 grain bullets will always be very short given their small size and I've had trouble feeding even with round nose bullets. It's just too easy for them to get cockeyed going up the feed ramp and into the chamber.
    I got a deal on 130gr JHP factory bullets why I'm looking for something lighter I know the jacket adds some weight but how much? Also what is this weight without the jacket?

    My last mold I bought was a MP 130gr has deep and shallow HP on it. It does work with the magazine feeding but just looks dumb since it only works when the lube ring is showing.

  10. #10
    Boolit Grand Master popper's Avatar
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    Gee, I use RD style or other RNFP moulds in all my BOs. All have a pretty big meplat. No feeding problem when using lancer BO mags. Pmag does have a BO version I've not tried.
    Whatever!

  11. #11
    Boolit Buddy



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    130-150 grain spire point work great for me I shoot the 150 grain for 3 gun and have not had any issues with feeding. I do use the Pmag for 300 BO there is a slight difference with those compared to std/steel 5.56 mags.
    "Yes or no will almost always suffice as the answer"

  12. #12
    Boolit Grand Master popper's Avatar
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    31=142C or GC 142D. Work with 223 pmgs but I usually use lancers.
    Click image for larger version. 

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ID:	296733 170 runs slow but feeds fine from lancers. 31-168c.
    Click image for larger version. 

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ID:	296734 145 in pmag.
    Whatever!

  13. #13
    Boolit Master

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    I know there are better molds available, but I still use the 230 gr Lee mold. I use a mix of Pmags and surplus steel mags and have never had a problem.

  14. #14
    Boolit Buddy
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    Problem is not the magazine it's the bullets all are to OAL The 230gr I have I don't have any problem with but I want lighter weight bullets. Not a magazine problem as the 130 gr speer HP I load work in all the magazines I have also.

  15. #15
    Boolit Buddy
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    Quote Originally Posted by popper View Post
    31=142C or GC 142D. Work with 223 pmgs but I usually use lancers.
    Click image for larger version. 

Name:	170.jpg 
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ID:	296733 170 runs slow but feeds fine from lancers. 31-168c.
    Click image for larger version. 

Name:	mag.jpg 
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ID:	296734 145 in pmag.
    145gr run fine?

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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