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Thread: Has anyone tried the following Arsenal mould in 300 Blackout AR?

  1. #1
    Boolit Master mattw's Avatar
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    Has anyone tried the following Arsenal mould in 300 Blackout AR?

    I am looking for moulds for the 300 Blackout on the AR platform... The following from Arsenal looks like a good option, has anyone tried it?

    http://arsenalmolds.com/bullet-molds?product_id=86

  2. #2
    Boolit Grand Master popper's Avatar
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    I am trying the 31-165C which is very similar, so far good results. You will have to watch the nose, it's a little large for PC coating.
    Whatever!

  3. #3
    Boolit Master mattw's Avatar
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    That is what I was afraid of popper. I have not done a lot of PC yet, but I have found that Smoke's red seems to give a fairly thin coat and the black and traffic blue are relatively thick coats. I have order the Lee mould to try, someone sent me a few PC ones that were sized for 7.62x39 and the PC did not hold up well sizing them down. But, they have shot ok and feed well so I am willing to try that mould. I think if asked, Arsenal might make the nose diameter .001 smaller diameter... but not sure.

    The 31-165C is almost a bore rider. I could see where it would have issues with PC. One could almost size that nose down a little though. Their site drives me nuts... that is not listed in the catalog, but google found it by number.

  4. #4
    Boolit Grand Master popper's Avatar
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    31-165C is just like the A version with smaller grove (original design for 308W by some good guys). It works very well in my AR10, just decided to try it in the BO. A 31-142C is same design, lighter weight PB I use in the BO, also very accurate. Accurate will let you set nose and body size - the 'C' has a 0.297 nose dia for PC. The mould you spoke of has the larger nose dia. Neither are bore riders.
    Whatever!

  5. #5
    Boolit Buddy Smk SHoe's Avatar
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    I have the mold and was trying to get it to work in a 300 BLKOUT AR. Just couldn't get it to go into battery. Not the bullets fault. Once I PC'd and sized them, just couldn't get them seated deep enough to work. Maybe Hitec coating would work, not as thick. for a bolt gun they are a blast. Load for my neighbor's 30-06 and he loves them for beating up plates.
    Retired Redleg
    I came into this world kicking and screaming covered in someone else's blood, I don't mind going out the same way.

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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