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200 grain partition over 2500 fps

Was perusing the Nosler Website and found this data.

Eye Popping!

http://www.nosler.com/index.php?p=15&b=30cal&s=307

I gotta get a 200 partition going 2500.

308 Winchester
200gr Partition� & AccuBond�

Primer: Federal 210M
Ballistic Coefficient: PT (.481) AB (.588)
Sectional Density: .301
* Most Accurate Load Tested

Powder: IMR 3031
Charge Weight Muzzle Velocity (fps) Load Density
(in grains)
38.0* 2290 fps 82%
36.0 2180 fps 78%
34.0 2070 fps 74%

Powder: W760
Charge Weight Muzzle Velocity (fps) Load Density
(in grains)
48.0 2571 fps 104%
46.0 2495 fps 100%

44.0* 2414 fps 95%

Powder: IMR4350
Charge Weight Muzzle Velocity (fps) Load Density
(in grains)
48.0 2460 fps 104%
46.0 2360 fps 100%
44.0* 2260 fps 95%

BMT

Last edited by BMT; 10/31/09.

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30 inch bbl?


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Originally Posted by yukon375
30 inch bbl?
.........Nupe! Probably with 24s.

Hodgdon uses 24" barrel data. Same with Lyman as well. I also believe that Nosler uses 24" barrel data. There are many 308 loadings using the 200 gr bullets with velocity listings in the 2400s along with one or two in the low 2500 fps range.

Depending on the bore, individual rifle and powder choice, the 308 is very capable of 2500 fps with 200 gr bullets out of a 24" barrel.


28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger


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In my experience, Nosler's MV data tends to run much higher than what you get from a hunting rifle.

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Originally Posted by himmelrr
In my experience, Nosler's MV data tends to run much higher than what you get from a hunting rifle.

RH
.......Then Hodgdon and Lyman must be running higher too!! Plenty of 24" 200 gr loadings in the 2400s with one ot two in the low 2500s.


28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger


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Damn, only 2500 fps? That's too slow and not even worth bringing up...

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I had a 26" 308 HB that'd run 190SMK's at 2625 with H-4895.

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Better than WHAT, BMT?


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shoot that 200 with your 1-12 twisted barrels for best accuracy.


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Originally Posted by Jeff_O
Better than WHAT, BMT?


The 7-08 . . . . . . grin

BMT


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Yipes!

Well, a convincing case can be made (ahem) that they are essentially equals, but I have yet to see a convincing case that one is better'n the other.

Try running this. These are both the top speeds from the Nosler book.

.30- cal, 200-gn Partition, 2571 fps

7mm, 175-gn Partition, 2612 fps

I can post the charts if you want...

Pretty similar, slight edge to the 7-08 in most categories. You could make the .308 look better with the 200-gn Accubond, but now we are cheating, using dis-similar bullets.


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Seen what Montana Marine is doing with RL17 208Amax in a short 308?


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Originally Posted by Jeff_O
Yipes!

Well, a convincing case can be made (ahem) . . . . .


Don't go there, T'were a joke.

BMT


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Originally Posted by 260madman
Seen what Montana Marine is doing with RL17 208Amax in a short 308?


Yes, I have a Custom Tube on my 308.

I am awaiting Shooter's Pro Shop to list some 200 grainers (factory seconds) then I will give it a try.

BMT


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I ran some loads with 200s in the 308 over RL17 recently.

Summary:

20.5" factory Rem varmint bbl (I had it cut from 26").
Mag length OAL 2.81"

200gr SGK, 2700 fps

200gr AB, moly'd, 2620 fps




Details and pics here:

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/3418735/1/308_RL17_200_gr_bullet


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Shane;

Very much looking forward to your 208, RL-17, and '06 findings.




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Originally Posted by VAnimrod
Shane;

Very much looking forward to your 208, RL-17, and '06 findings.


Daniel over in Australia has been hard at the RL17/30-06 thing (with pressure testing) and has put up some preliminary 200 gr. results:

http://forums.accuratereloading.com/eve/forums/a/tpc/f/2511043/m/8561013611?r=8561013611#8561013611

And 180 gr results:

http://forums.accuratereloading.com/eve/forums/a/tpc/f/2511043/m/5761051511?r=5761051511#5761051511


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Originally Posted by MontanaMarine
I ran some loads with 200s in the 308 over RL17 recently.

Summary:

20.5" factory Rem varmint bbl (I had it cut from 26").
Mag length OAL 2.81"

200gr SGK, 2700 fps

200gr AB, moly'd, 2620 fps




Details and pics here:

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/3418735/1/308_RL17_200_gr_bullet



Wow, 2700 fps from a 20.5" barreled 308. The max load over at the Hodgdon site gets 2514 fps.

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I bet Shane will post his load... grin...


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