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Thread: Sierra Game King's

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    Default Sierra Game King's

    I was wondering if anyone on here has experience with the performance of these game king bullets. I'm looking at working up a load with the 300 grain BTSP out of my .378 Weatherby.

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    Have used them in my 338 Edge for several years. They have never failed and never needed a follow-up. Just finished working up a load for the 7STW in 175gr.

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    The three moose I've shot with the .375 300gr game kings have all travelled about 50 feet before collapse. The bullets have typically come apart, but the way I know this is because I've recovered the fragments from a dead moose. All boiler room shots. All less than 60 yards. Probably factors into the fragmentation of the bullet. Pretty close, still fairly high velocity. I will still use them, they seem to kill well.
    "A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise, and independence to the mind."

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    Join DateFeb 2008LocationPalmer,AKPosts94
    eat your heart out you barnes lovers

    Bullet recovered from my 338 ultra mag on a caribou. Guess what it's a sierra boat tail.
    Distance 362 yards
    Bullet SBT game king 250gr
    muzzle velocity 2913 @ 52 degrees
    Shot quatering away, found under hide on offside front shoulder
    Mushroom wieght 238gr, diameter .83"

    Just more proof that barnes are overrated !!!

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    The 220gr GK's shoot great in my 325wsm. I killed a small Interior griz with em a few years back. 165yds all pass throughs.
    A gun is like a parachute. If you need one, and donít have one, youíll probably never need one again

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    Thanks for the info guys.

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    Quote Originally Posted by matty_ren View Post
    I was wondering if anyone on here has experience with the performance of these game king bullets. I'm looking at working up a load with the 300 grain BTSP out of my .378 Weatherby.
    I think a Sierra Game king is a great bullet from a great company. They have never made a bad bullet but some bullets because of their design should not be used at the velocity of some of the higher velocity cartridges. Will it work? Most likely but for a bullet that was made to be fired from a 375 H&H at about 2500-2600 fps I'd say that a better bullet could be found for the 378 Weatherby. I am not disagreeing with all the good advice from experience here just saying if you can find a Swift A-frame or TBBC, the 378 responds better with tougher built bullets. If I had a 378 Weatherby and was tasked with working up loads for it, I'd sell it and buy a very nice 375 Dakota, or Remington, or Ruger, or Rigby, or......
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



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    Quote Originally Posted by Murphy View Post
    I think a Sierra Game king is a great bullet from a great company. They have never made a bad bullet but some bullets because of their design should not be used at the velocity of some of the higher velocity cartridges. Will it work? Most likely but for a bullet that was made to be fired from a 375 H&H at about 2500-2600 fps I'd say that a better bullet could be found for the 378 Weatherby. I am not disagreeing with all the good advice from experience here just saying if you can find a Swift A-frame or TBBC, the 378 responds better with tougher built bullets. If I had a 378 Weatherby and was tasked with working up loads for it, I'd sell it and buy a very nice 375 Dakota, or Remington, or Ruger, or Rigby, or......
    The main reason why I was asking about these bullets was to see if anyone had any hunting experience with the GK's, and how the worked on game, and I got the answers I thought I would. At the shorter distance, higher velocity the bullet came apart, the longer distance lower velocity it stayed together and mushroomed perfect. I have loads for my .378 with the swift A-frames and Accubonds, I just came across some load data on realguns.com that perked my interest into these GK's. Thanks for responding Murphy I know you are very knowledgeable and I enjoy reading your posts, but I will keep the Weatherby.

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    Good info, I bought a box to try thinking they would be a good caribou/interior griz bullet, I like what i'm hearing!

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    I've had great luck with the 225 out of my 350 Rem Mag. I also just worked up a load for my 300 WBY, with the 200 grainers. I'll have to wait until this fall to see how bad they tear deer apart.
    LIVE TO HUNT....HUNT TO LIVE!!!!

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    I use 165 Sierra's in a 308 and have had no issues taking caribou with it. I do use Sierra in several different calibers and like the groups that I get. Since Sierra came out with the 225gr in 338 I have been wanting try them. While Sierra's do seem to come apart on impact, I have never lost an animal with them. I have been told that the major supplier for Alaska is not carrying Sierra bullets, so I may need to start ordering them online. I am not sure if it holds ture today, but in the past, Sierra bullets were a lot more reasonable to but them most of the other brands.

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    Quote Originally Posted by matty_ren View Post
    The main reason why I was asking about these bullets was to see if anyone had any hunting experience with the GK's, and how the worked on game, and I got the answers I thought I would. At the shorter distance, higher velocity the bullet came apart, the longer distance lower velocity it stayed together and mushroomed perfect. I have loads for my .378 with the swift A-frames and Accubonds, I just came across some load data on realguns.com that perked my interest into these GK's. Thanks for responding Murphy I know you are very knowledgeable and I enjoy reading your posts, but I will keep the Weatherby.
    You're welcome. Thats about the performance I would expect. I have to admit to being recoil shy with the 378 Wby. The only rifle I've ever shot that left me numb. I think its the reason muzzle brakes were invented.
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



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