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  1. #1

    Building a custom rifle- 6.5/284 or 6.5/300 weatherby magnum

    Pros and cons and all opinions welcomed


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  2. #2
    I'm probably a little partial but I think the 6.5-284, especially when built on a long action, is a very well balanced cartridge that will get you plenty of speed, even with the heavy for caliber high BC bullets, from a reasonable hunting length barrel and still have decent barrel life.

    But, if you are wanting to make 6.5 bullets go really really fast and don't really care about anything else, something like the 6.5-300 Wby should certainly accomplish that. Personally, I think anything like the 6.5-300 is a complete waste unless it has at least a 30in. tube on it, but that's just me.

    Not that the 6.5-284 is credited for having and extremely long barrel life, but I'd bet a 6.5-300 would probably be in that 6-800 rounds range.

  3. #3
    Guns are tools for me. So what will this tool be used for?

  4. #4
    Senior Member
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    Quote Originally Posted by NorCal_In_AZ View Post
    Guns are tools for me. So what will this tool be used for?
    In the case of the 6.5-300 I am guessing load development then rebarrel, lol.
    I cant see it making 500 rounds

  5. #5
    LRO Owner ~ Review Editor ~ Long Range Hunting Specialist Broz's Avatar
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    Well, after building a .257 / 300 Weatherby and knowing what the barrel life was on it, I am not interested in the 6.5/300 Wby.

    The 6.5x284 is a great round and I have owned a few. I even built a 6mm-284 once and during its barrel life it was a hammer for coyotes.

    Between your two suggestions I would go 6.5x284.

    As far as other suggestions go, the 6.5 PRC is filling my 6.5 needs right now and I really enjoy the fact it shoots factory Hornady ammo very well. It is close in ballistic performance to the 6.5x284, so not much, if any gain there and will be big enough for the newer heavier bullets. I am not sure I have found all the good points about this cartridge yet, but I can tell you I have another coming in this week. So obviously I like it.

    Jeff

  6. #6
    If you're looking for a little more performance than the 6.5-284 will offer, as Jeff mentioned, the 6.5 PRC will get you there.

    Also, with ADG making 6.5 SAUM brass, that would be another option.

    I'd imagine the 6.5 PRC and 6.5 SAUM are near ballistic twins but the brass from ADG is probably a fair bit better than the Hornady stuff for the PRC.

    The 6.5-284 can be run from a short action but they certainly benefit from being used in a long action. The 6.5 SAUM and PRC perform very well from a short action so if you are looking to keep the weight down, but still have the performance, the SAUM and PRC will be the better choice.

  7. #7
    The biggest advantage for PRC over the SAUM is internal box magazine feeding. The rebated rim on SAUM rounds can cause feeding issues. The PRC having a non rebated rim is supposed to fix that. But if your feeding from a single stack drop magazine, the issue is mute. Other wise I think SAUM/PRC/6.5-284 are all very very close ballisticaly.

  8. #8
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    Almost not the same question. Without nailing down a couple of other parameters, or desires it's tough to answer.

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