7.62x39 vs 300AAC vs 6.5 Grendel

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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 06 Jan 2019, 7:51 pm

SCJ429 wrote:Would Trail Boss in your 308 do everything that you were hoping to do with the 300? I think that a 45/70 with Trail Boss is a pretty good alternative to the Blackout.



Yeah I reckon using trailboss or using reduced loads of AR2206H would do what I want.
You are right, I don’t really need it, but where is the fun in that.
Any excuse for a new rifle.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by SCJ429 » 06 Jan 2019, 8:09 pm

What I see missing in your gun safe is a 375, 416 or a 458.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by in2anity » 06 Jan 2019, 8:36 pm

bigrich wrote:after looking at some ballistics on these rounds, it seems like their a bolt action in the 30-30 niche . not a critisism , just a observation . the 6.5 would have superior accuracy at distance i would imagine :unknown: i have considered a ruger bolt gun in 44 mag as a 100 yard rifle, but the jury's still out on that for me ;) the 300 BO does sound interesting :)

:drinks: :drinks: :thumbsup:


The BO vs 30/30 is the obvious parallel to draw, but the BO should be more accurate (in a bolt gun that is). I'm speculating here (never owned a BO) but the BO (vs 30/30) should also be more suited to the handloader; the smaller case means you can operate in the faster powder region, equating to better economy than the mid-burns. The front locking lugs of the bolt gun (vs the 30/30's rear locking lugs) should equate to less case stretch and longer brass life, not to mention I'm guessing the brass will be thicker on the modern BO cartridge compared to the 30/30 (looking at the pressure specs).
Last edited by in2anity on 06 Jan 2019, 9:04 pm, edited 2 times in total.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 06 Jan 2019, 8:37 pm

SCJ429 wrote:What I see missing in your gun safe is a 375, 416 or a 458.


Haha yeah well I had entertained the idea of something larger but to be honest mate I’d have nothing to shoot with it. Bit of an overkill for the feral pig population.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by in2anity » 06 Jan 2019, 8:42 pm

SCJ429 wrote:I think that a 45/70 with Trail Boss is a pretty good alternative to the Blackout.


IMO I don't think so - the 45/70 will consume a lot more Trail Boss than the BO, and probably be less accurate. Not to mention the 45/70 will shoot more rainbow and consume more lead.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by in2anity » 06 Jan 2019, 9:17 pm

JimTom wrote:reduced loads of AR2206H would do what I want.
You are right, I don’t really need it, but where is the fun in that.
Any excuse for a new rifle.
:thumbsup:


Part cases of 2206H can be annoyingly position sensitive - alright for target shooting but it's another variable you have to consider.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by SCJ429 » 06 Jan 2019, 10:20 pm

in2anity wrote:
SCJ429 wrote:I think that a 45/70 with Trail Boss is a pretty good alternative to the Blackout.


IMO I don't think so - the 45/70 will consume a lot more Trail Boss than the BO, and probably be less accurate. Not to mention the 45/70 will shoot more rainbow and consume more lead.


I don't think that they use trail boss in the Blackout when shooting heavy 200 plus projectiles. My thinking was that a 45/70 would be a good fun lead slinger at subsonic speeds for short range work. I don't expect people buy a blackout because it shoots bug holes. Of course a 400 grain bullet travelling at 1000 fps isn't going to be flat shooting but the Blackout is no 257 Weatherby in this regard.

The 45/70 is just a left field suggestion, I think out of all of your options you cannot go wrong. They all will be a lot of fun.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by wanneroo » 07 Jan 2019, 2:20 am

I know there are subsonic 308 loads you can do, I've shot subsonic 308 in a bolt gun with suppressor and it's pretty damn quiet.

However, one advantage for those with bolt guns is 300 BO is a 223 sized action, so if you don't want to carry the extra weight of a 308, this is where it can come into play. I have AR semi auto rifles in both and carrying around the 308 AR rifle is a totally different proposition to the 300 BO AR. 300 BO is light and handy, 308 is not.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by bigrich » 07 Jan 2019, 4:36 am

in2anity wrote:
bigrich wrote:after looking at some ballistics on these rounds, it seems like their a bolt action in the 30-30 niche . not a critisism , just a observation . the 6.5 would have superior accuracy at distance i would imagine :unknown: i have considered a ruger bolt gun in 44 mag as a 100 yard rifle, but the jury's still out on that for me ;) the 300 BO does sound interesting :)

:drinks: :drinks: :thumbsup:


The BO vs 30/30 is the obvious parallel to draw, but the BO should be more accurate (in a bolt gun that is). I'm speculating here (never owned a BO) but the BO (vs 30/30) should also be more suited to the handloader; the smaller case means you can operate in the faster powder region, equating to better economy than the mid-burns. The front locking lugs of the bolt gun (vs the 30/30's rear locking lugs) should equate to less case stretch and longer brass life, not to mention I'm guessing the brass will be thicker on the modern BO cartridge compared to the 30/30 (looking at the pressure specs).


Absolutely a bolt gun would be more accurate, as well as spritzer bullets in a bolt help accuracy. The parallels I’m referring to are the similarities in power and caliber in a lightweight Carbine type rifle for 100 - 150 yard type shooting. Just a observation

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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by in2anity » 07 Jan 2019, 6:20 am

wanneroo wrote:I know there are subsonic 308 loads you can do, I've shot subsonic 308 in a bolt gun with suppressor and it's pretty damn quiet.

However, one advantage for those with bolt guns is 300 BO is a 223 sized action, so if you don't want to carry the extra weight of a 308, this is where it can come into play. I have AR semi auto rifles in both and carrying around the 308 AR rifle is a totally different proposition to the 300 BO AR. 300 BO is light and handy, 308 is not.


Sadly ARs aren't really a think down here.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by wanneroo » 07 Jan 2019, 8:11 am

in2anity wrote:
wanneroo wrote:I know there are subsonic 308 loads you can do, I've shot subsonic 308 in a bolt gun with suppressor and it's pretty damn quiet.

However, one advantage for those with bolt guns is 300 BO is a 223 sized action, so if you don't want to carry the extra weight of a 308, this is where it can come into play. I have AR semi auto rifles in both and carrying around the 308 AR rifle is a totally different proposition to the 300 BO AR. 300 BO is light and handy, 308 is not.


Sadly ARs aren't really a think down here.


I know, unfortunate for you all, but whether a bolt or semi auto, there will be a weight difference. Again it all depends what you want.

Someone mentioned 30-30 up above. I shot one last weekend and 300 BO does the same thing in a smaller package.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 07 Jan 2019, 9:54 am

The Ruger American Ranch in 300AAC would suit my purpose more than a 30/30 lever. Short light and fairly cheap to purchase.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by Flyer » 09 Jan 2019, 3:30 am

CZ makes a nice little 527 carbine in 7.62x39. I shot a lot of 7.62x39 when I lived in Asia. AKs and SKS. The SKS was surprisingly accurate - I even won a rifle comp with one many years ago. Easy on the recoil. More accurate than most give it credit for. Can't comment on the others. I do like my lever action, though. But it's only a .22. My next rifle will probably be a Winchester 9422M (22 mag) lever. Or a 6mm PPC :lol:
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by Cooper » 09 Jan 2019, 11:24 am

JimTom wrote:
SCJ429 wrote:The 762 x 39 biggest downside is that it uses 311 projectiles. If you chambered a 308 barrel in it you would have a winner.

The Grendel is very accurate also, you could load it to shoot subsonic if you wanted to.

The 300 has a very narrow focus but if that is what floats your boat.....




Yeah mate agree about the .311 projectiles and the 7.62x39. Pity they aren't .308. Would be a winner there. That as I see it is the only advantage the 300AAC has over the 7.62x39.

Plus I have a surplus of .308 130gn projectiles that'd like to use. Still that's no reason to buy a rifle in that calibre.


Out of the three I already own a 6.5 Grendel. I went that direction because I like the Howa mini plantform and already having 6.5 Creedmoor I had a selection of lighter 6.5mm projectiles to try. I'm happy with the Grendel.
The Howa mini is being released in 300blk out. If I had had a selection of 30 cal projectiles it would probably interest me more.
But I like new toys. So I say the more the better.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 09 Jan 2019, 3:21 pm

Flyer wrote:CZ makes a nice little 527 carbine in 7.62x39. I shot a lot of 7.62x39 when I lived in Asia. AKs and SKS. The SKS was surprisingly accurate - I even won a rifle comp with one many years ago. Easy on the recoil. More accurate than most give it credit for. Can't comment on the others. I do like my lever action, though. But it's only a .22. My next rifle will probably be a Winchester 9422M (22 mag) lever. Or a 6mm PPC :lol:



Mate I have had the opportunity to use a CZ 527 in 7.62x39 and I agree it's it is a nice bit of kit. CZ a bit to nice for what I want this for, plus set trigger a bit cumbersome for quick offhand shots.
The synthetic Ruger is something that can take a bit of field punishment.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by Flyer » 09 Jan 2019, 6:13 pm

I had a 527 full stock (lovely rifle) in 223 and disabled the set trigger so that it worked only off the main trigger. It was a great little rifle which I only sold to buy a Sako 85 in the same cailbre.

At least with the Grendel you can have a stash of 6.5 projectiles to use for that and your 6.5 Creedmoor.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by Urastus » 09 Jan 2019, 6:44 pm

There is one advantage of 300aac that nobody seems to have considered - it doesn't need a long barrel. 16" seems to be overkill according to those in the US who shoot with it. Many use 12" or even 10". I'd stay with 16". A short barrel would be awesome for the ranges you're talking about - I considered this for the same reason. No wasted flash bang going out the end of the barrel, unlike a 20" .308 or anything else that isn't pistol caliber. I decided I wanted accuracy at longer ranges.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by SCJ429 » 09 Jan 2019, 8:41 pm

You have to stay over 16 inches if you want it to be legal as a rifle.

Lots of calibers work OK if you shoot subsonic and use a short barrel, straight walled big bore cases work very well with short barrels.
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