450 bushmaster

Discussion in 'Iowa Whitetail Conference' started by Reit38, Dec 10, 2018.

Tags: Add Tags
  1. gunrunr

    gunrunr Life Member

    Messages:
    1,406
    Likes Received:
    350
    Trophy Points:
    83
    Location:
    Pella
    450 AR's seem to be very finicky about magazines - trying a different mag or tuning your mag helps a lot of feeding issues.
    Many guns also seem to have weak buffer springs and seem to cycle better with heavier spring ($12-25)
    Both fixes are relatively cheap and one or both have helped get most guns operating much better
     
  2. AdBot Guest Advertisement

  3. rutnstrut

    rutnstrut PMA Member

    Messages:
    882
    Likes Received:
    151
    Trophy Points:
    43
    Location:
    central iowa
    Ive got a buddy handloading 250g Barnes XPB bullets for me... When shot through my guns at 100yds they impact and group identical to factory Hornady Black loads but they seem to hit SOOO much harder... 3" high @100yds and about 3" low at 200yds... 0-200yds hold center mass and squeeze the trigger... Bang, flop, dead[​IMG]

    Sent from my LM-V405 using Tapatalk
     
    Sligh1 and srjdsmith like this.
  4. rutnstrut

    rutnstrut PMA Member

    Messages:
    882
    Likes Received:
    151
    Trophy Points:
    43
    Location:
    central iowa
    Its tough to say without knowing more what actual issue/issues youre actually fighting... Heres a chart that will give you a rough idea if its gas related [​IMG]

    Sent from my LM-V405 using Tapatalk
     
  5. srjdsmith

    srjdsmith Member

    Messages:
    83
    Likes Received:
    28
    Trophy Points:
    18
    Location:
    Dubuque
    I just got my dies. Haven’t reloaded a single 450B round yet but that sounds like the ticket. The factory Hornady 250’s are great, so if those perform identically that’s very good. Think he’d give me his recipe?


    Sent from my iPhone using Tapatalk
     
  6. rutnstrut

    rutnstrut PMA Member

    Messages:
    882
    Likes Received:
    151
    Trophy Points:
    43
    Location:
    central iowa
    Ill ask... All I know for sure is lilgun powder... Identical at 100yds at least, havent shot them on paper any farther but I dumped a couple does in the 160-180yd range and it hit right where I was aiming... 12ringed a coyote running wide open across a bean field at 131 steps too... Ive been impressed
    [​IMG]
     
    Last edited: Dec 12, 2018
    RoosterCogburn, meyeri, Broot and 2 others like this.
  7. rutnstrut

    rutnstrut PMA Member

    Messages:
    882
    Likes Received:
    151
    Trophy Points:
    43
    Location:
    central iowa
    He just said 36.5g lilgun... 1g under max listed load for 250g bullet. He said hes seen where some people are loading up to 40g in some bokt guns but since he was loading one load for several buddies he played it a little on the safe side
     
    Last edited: Dec 12, 2018
    srjdsmith likes this.
  8. msauer933

    msauer933 Active Member

    Messages:
    858
    Likes Received:
    38
    Trophy Points:
    28
    Location:
    Central Iowa
    srjdsmith likes this.
  9. JNRBRONC

    JNRBRONC Moderator

    Messages:
    8,581
    Likes Received:
    629
    Trophy Points:
    113
    I helped a friend sight in his 450 Bushmaster. I like the round since it uses the same powders and bullets as my Savage ML10II, so ballistics are similar. Just that I only have one shot, which since I don’t party hunt, not a big deal for me.


    Sent from my iPhone using Tapatalk
     
  10. Fishbonker

    Fishbonker Life Member

    Messages:
    6,890
    Likes Received:
    785
    Trophy Points:
    113
    Location:
    The Padded Room
    Great line.
     
  11. srjdsmith

    srjdsmith Member

    Messages:
    83
    Likes Received:
    28
    Trophy Points:
    18
    Location:
    Dubuque
    Thank you- and to him also. A little on the safe side is good- was when game still dies quickly out at/near 200 yds.


    Sent from my iPhone using Tapatalk
     
  12. srjdsmith

    srjdsmith Member

    Messages:
    83
    Likes Received:
    28
    Trophy Points:
    18
    Location:
    Dubuque
    Thanks. Those guys are very knowledgeable and have helped me a lot so far. Thanks for the pointer.


    Sent from my iPhone using Tapatalk
     
  13. meyeri

    meyeri PMA Member

    Messages:
    1,218
    Likes Received:
    455
    Trophy Points:
    83
    Location:
    Central Iowa
    Not all mags are created equal. If it's not a gas issue, then it's probably a mag issue. C-products magazines are great for atypical rounds. I have a 7.62x39 AR that shoots cheap steel surplus AK ammo flawlessly with C-products mags. Sometimes flatter rounds don't like to climb up the straight vertical mag-well of AR's without nose diving. Try a variety of magazines and don't cheap out on a bolt carrier group either.

    Sent from my Pixel 2 using Tapatalk
     
  14. sirrloin

    sirrloin Member

    Messages:
    96
    Likes Received:
    63
    Trophy Points:
    18
    Location:
    Winterset
    You guys are making it hard to not want to spend money lol

    Sent from my SM-G965U using Tapatalk
     
  15. Monsterbuck

    Monsterbuck Active Member

    Messages:
    658
    Likes Received:
    51
    Trophy Points:
    28
    Location:
    Central Iowa
    I did do some reading on the 450 Bushmaster forum. I bought some Stoner mags from Midway USA that many seemed to.like on the forum. I also bought a 450 Bushmaster follower for the magazines from Chambers Tactical. I haven't messed around with the feed lips yet but will probably try opening them up a bit.
     
  16. Monsterbuck

    Monsterbuck Active Member

    Messages:
    658
    Likes Received:
    51
    Trophy Points:
    28
    Location:
    Central Iowa
    For those with AR guns one of the things I am experiencing is when done for the day I dropped out the magazine then pulled back the charging handle to clear the shell from the chamber.

    The issue is the shell doesn't come out, it stays stuck in the chamber. I have resorted to holding the charging handle back and pushing out the cartridge from the muzzle end with a fiberglass rod.

    Is there an extractor that should be pulling the cartridge out when you pull back on the charging handle? I'm new to this do don't know how it works. I'm used to pulling back the lever on my shotgun and the shell pops out.
     
  17. meyeri

    meyeri PMA Member

    Messages:
    1,218
    Likes Received:
    455
    Trophy Points:
    83
    Location:
    Central Iowa
    Your Bolt Carrier Group contains the extractor. When you pull back the charging handle it should extract any spent or full rounds. First off find a buddy with a. 450 Bushmaster upper and swap BCG's to see if the issue replicates. Also oil the tar out of it and cycle it a ton. I'd take it apart too and check everything over for function. YouTube can help you with this; plus you'll need to know how to clean it anyway. If the issue persists with your BCG then it could be out of spec. In that case the manufacturer should help you out. You can also upgrade to a toolcraft BCG for about $130 bucks. Good luck. [​IMG]

    Sent from my Pixel 2 using Tapatalk
     
  18. Monsterbuck

    Monsterbuck Active Member

    Messages:
    658
    Likes Received:
    51
    Trophy Points:
    28
    Location:
    Central Iowa
    Thanks a ton for the info. One question, the pin on the bolt face for the extractor spring, should you be able to push it in with your finger when you have the BCH out? How much resistance should it have? Just wondering as I have pushed on it and it didn't move so wondering if it is seized and that is the issue.
     
  19. meyeri

    meyeri PMA Member

    Messages:
    1,218
    Likes Received:
    455
    Trophy Points:
    83
    Location:
    Central Iowa
    I'm not exactly sure how much tension those components should be under. I think they should be stiff enough that you shouldn't be able to compress it with just your fingers. I was curious so I grabbed a BCG of mine and I couldn't compress it. I could with a key, so if it won't compress at all, then that could be the problem. I did a quick Google of that brand of upper on optics planet and several guys had similar issues.

    Sent from my Pixel 2 using Tapatalk
     
  20. teeroy

    teeroy Life Member

    Messages:
    5,016
    Likes Received:
    0
    Trophy Points:
    36
    Location:
    Buck State University
    if you hit one of the gunshows, durkin tactical (green tables) has a pretty good upper. i think they are running $350 now. (a shitload less than when i bought mine) i put a PSA lower on it, and it runs like a top. i did some searching on gunbroker, and picked up a few mags from different companies, and everything has worked pretty well. there is a 15 round plastic mag made by ATI for a 410 AR. it works ok, doesn't drop out like a steel mag with you hit the button, but it needs a stiffer spring, doesn't feed the last couple rounds well enough. if you use a standard AR mag, i think the 20 rounders don't have the curve of the 30 rounders, and work better. you just need to buy a different follower plate. i think you can get them for around $9 on ebay.
    there is getting to be quite a few ammo makers stepping up, black butterfly has some impressive loads, as does buffalo bore. federal just put out a 300 grain hollow point load, for about the same price as the hornadays.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice