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Which cartridge for short bbl/suppressor #7402802 01/12/19 10:25 PM
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howl Offline OP
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Say you wanted to throw at least a 120gr bullet, with a sectional density of at least .25, starting out fast enough to still go at least 2600fps at 150 yards, and do it from a 16" barrel, which cartridge would you choose?

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403077 01/13/19 05:37 AM
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Maybe one of these?

https://www.hornady.com/ammunition/rifle/6-5-creedmoor-120-gr-gmx-superformance#!/

https://www.hornady.com/ammunition/rifle/6-5-creedmoor-129-gr-sst-superformance#!/

https://www.hornady.com/ammunition/rifle/7mm-08-rem-139-gr-sst-superformance#!/

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403093 01/13/19 06:00 AM
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I'm getting 2730 at the muzzle from my 16" 6.5 Creedmoor and factory Superformance 129 SST. They're only moving 2400 at 150 yards. The problem you're going to have with the light bullets is low BC. You cant run them fast enough in such a short barrel to overcome the low BC at distance. I'll run the numbers with a 308 and see if it's an option but I think your expectations are high. Also, if you're shooting a gas gun, the velocities will be even lower.


Originally Posted by KRoyal
Haha yea I polished that thing for hours.
Re: Which cartridge for short bbl/suppressor [Re: howl] #7403094 01/13/19 06:12 AM
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Well, the 308 won't meet your demands. Even a 6.5 Creedmoor running 130 Hybrids would need 2900 FPS MV to do what you're asking. Maybe someone else can come up with a magic combination but I think you're going to have to be flexible with either your barrel length or your expectations. 2cents

I just ran the numbers for a 7mm with 162 ELD and you'd still need 2900 to get to your goal. It'll never happen in a barrel that short unless you get a magnum and experiment with faster than normal powders.

Last edited by ImTheReasonDovesMourn; 01/13/19 06:17 AM. Reason: Added 7mm info

Originally Posted by KRoyal
Haha yea I polished that thing for hours.
Re: Which cartridge for short bbl/suppressor [Re: howl] #7403098 01/13/19 06:30 AM
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I agree with the statement above, that is going to be very hard to find, actually very lofty goals. Why 2600fps?


lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Which cartridge for short bbl/suppressor [Re: howl] #7403239 01/13/19 03:13 PM
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Originally Posted by howl
Say you wanted to throw at least a 120gr bullet, with a sectional density of at least .25, starting out fast enough to still go at least 2600fps at 150 yards, and do it from a 16" barrel, which cartridge would you choose?



17" 7mm-08 A.I. and suppressor

162 gr. ELD-X 2640 fps MV
150 gr. ELD-X 2700 fps MV

Speeds confirmed out to 800 yards. They might not be 2600 fps at 150 yards, but the multitude of animals hit as far as 300 yards died anyway.

Last edited by FiremanJG; 01/13/19 03:16 PM.

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Re: Which cartridge for short bbl/suppressor [Re: howl] #7403493 01/13/19 09:25 PM
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6.5 prc(saum) or a wsm or you will have to use a long action.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403502 01/13/19 09:41 PM
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My 16.25" 6.5 CM has killed axis out to 350ish and hogs nearing 500 yards with 120 grain A-Max. MV of 2750.


Originally Posted by unclebubba
Just to make sure that it is done thoroughly, I go both ways.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403647 01/14/19 12:41 AM
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2600 fps because it seems to be the approximate number for DRT with in tight heart lung shots.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403650 01/14/19 12:44 AM
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Originally Posted by howl
2600 fps because it seems to be the approximate number for DRT with in tight heart lung shots.



Alrighty then. Good luck to ya.


Originally Posted by KRoyal
Haha yea I polished that thing for hours.
Re: Which cartridge for short bbl/suppressor [Re: howl] #7403661 01/14/19 12:54 AM
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Originally Posted by howl
2600 fps because it seems to be the approximate number for DRT with in tight heart lung shots.


Lol tell that to all the hogs I’ve smacked with my 300BLK out of an 8” barrel running at around 2000FPS. Most were all DRT.


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Re: Which cartridge for short bbl/suppressor [Re: KRoyal] #7403667 01/14/19 12:59 AM
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Originally Posted by KRoyal
Originally Posted by howl
2600 fps because it seems to be the approximate number for DRT with in tight heart lung shots.


Lol tell that to all the hogs I’ve smacked with my 300BLK out of an 8” barrel running at around 2000FPS. Most were all DRT.


I have seen it first hand.


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Re: Which cartridge for short bbl/suppressor [Re: howl] #7403708 01/14/19 01:40 AM
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A lot on bangflop lung shots is how full of air the lungs are when hit. I have seen it at 100 yards from a 30-30 and have watched a buck run off for almost 100 yards after a lung shot from a 7mmSTW with an impact velocity of about 3200fps.

The only sure bang flop drt shots that guarantee it are CNS shots. Velocity helps but is not the end all answer.


lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Which cartridge for short bbl/suppressor [Re: howl] #7403724 01/14/19 01:58 AM
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I think the answer is powder blends and short fat cartridges, which would have to come from a manufacturer. Perhaps if we get access to suppressors without tax stamp rigamarole these things will happen.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403779 01/14/19 02:58 AM
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So I’m about to pull the trigger to rebarrel to either a 16.5” 308 or a 7mm-08. I like the availability and popularity of the 308 but I think the 7mm-08 has an advantage. This gun will be suppressed. I currently run it with a 16.5” 308 lite barrel. I’ll be going to a heavier barrel in either caliber. Any recommendations?

Last edited by Shaner; 01/14/19 02:59 AM.
Re: Which cartridge for short bbl/suppressor [Re: Shane431] #7403783 01/14/19 03:02 AM
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Originally Posted by Shaner
So I’m about to pull the trigger to rebarrel to either a 16.5” 308 or a 7mm-08. I like the availability and popularity of the 308 but I think the 7mm-08 has an advantage. This gun will be suppressed. I currently run it with a 16.5” 308 lite barrel. I’ll be going to a heavier barrel in either caliber. Any recommendations?



7mm-08 does have the advantage.

I have three 7mm bores. More than any caliber. One .308, in a gas gun, and it may well get a new barrel in 7mm-08.

The right hand load, and it will be excellent in bolt action or AR, even with a 16" barrel.


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Re: Which cartridge for short bbl/suppressor [Re: J.G.] #7403787 01/14/19 03:04 AM
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Originally Posted by FiremanJG
Originally Posted by Shaner
So I’m about to pull the trigger to rebarrel to either a 16.5” 308 or a 7mm-08. I like the availability and popularity of the 308 but I think the 7mm-08 has an advantage. This gun will be suppressed. I currently run it with a 16.5” 308 lite barrel. I’ll be going to a heavier barrel in either caliber. Any recommendations?



7mm-08 does have the advantage.

I have three 7mm bores. More than any caliber. One .308, in a gas gun, and it may well get a new barrel in 7mm-08.

The right hand load, and it will be excellent in bolt action or AR, even with a 16" barrel.


This is going in a bolt rifle. Appreciate the advice.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7403808 01/14/19 03:24 AM
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Originally Posted by howl
I think the answer is powder blends and short fat cartridges, which would have to come from a manufacturer. Perhaps if we get access to suppressors without tax stamp rigamarole these things will happen.

You don't need powder blends to achieve what you want. It's just going to come with muzzle blast that will be eliminated with your suppresor. 264 win mag would probably be good candidate on the low side. 300 win will do it, if your suppressor is rated for it.

Re: Which cartridge for short bbl/suppressor [Re: bo3] #7403918 01/14/19 12:03 PM
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Originally Posted by bo3
Originally Posted by howl
I think the answer is powder blends and short fat cartridges, which would have to come from a manufacturer. Perhaps if we get access to suppressors without tax stamp rigamarole these things will happen.

You don't need powder blends to achieve what you want. It's just going to come with muzzle blast that will be eliminated with your suppresor. 264 win mag would probably be good candidate on the low side. 300 win will do it, if your suppressor is rated for it.

You got data on that? Thanks.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7404049 01/14/19 02:26 PM
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.375 Bushmaster


SPACE FOR RENT


Re: Which cartridge for short bbl/suppressor [Re: howl] #7404239 01/14/19 05:39 PM
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Originally Posted by howl
Originally Posted by bo3
Originally Posted by howl
I think the answer is powder blends and short fat cartridges, which would have to come from a manufacturer. Perhaps if we get access to suppressors without tax stamp rigamarole these things will happen.

You don't need powder blends to achieve what you want. It's just going to come with muzzle blast that will be eliminated with your suppresor. 264 win mag would probably be good candidate on the low side. 300 win will do it, if your suppressor is rated for it.

You got data on that? Thanks.


300 win barrel test

This is about the only data I can find. It used factory 190 gr. Its going to be hard to find any data on a 16" barrel to do what your wanting. You might get there with 168 im the 300. You might look into the 338s.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7404281 01/14/19 06:11 PM
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I no longer have quickload but you can get good predictions of loads in different barrel lengths


lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Which cartridge for short bbl/suppressor [Re: bo3] #7404532 01/14/19 10:09 PM
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Originally Posted by bo3
Originally Posted by howl
Originally Posted by bo3
Originally Posted by howl
I think the answer is powder blends and short fat cartridges, which would have to come from a manufacturer. Perhaps if we get access to suppressors without tax stamp rigamarole these things will happen.

You don't need powder blends to achieve what you want. It's just going to come with muzzle blast that will be eliminated with your suppresor. 264 win mag would probably be good candidate on the low side. 300 win will do it, if your suppressor is rated for it.

You got data on that? Thanks.


300 win barrel test

This is about the only data I can find. It used factory 190 gr. Its going to be hard to find any data on a 16" barrel to do what your wanting. You might get there with 168 im the 300. You might look into the 338s.

Thanks.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7404537 01/14/19 10:13 PM
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Well, now. I did not realize integrally suppressed rifles are as affordable as they are.

Re: Which cartridge for short bbl/suppressor [Re: howl] #7404996 01/15/19 12:56 PM
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Originally Posted by howl
Well, now. I did not realize integrally suppressed rifles are as affordable as they are.

Where??? You have peaked my interest... grin

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