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Load Data for 308 Bolt Gun 18" Barrel
 Moderated by: Slingshot, Rockydog, klallen, DesertMarine, -6
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 Posted: Thu Jan 26th, 2017 10:34 PM
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rnew2000
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Looking for some load data for Hornady 150gr FMJBT using CFE or Benchmark. This will be out of a Ruger American bolt gun.



 Posted: Thu Jan 26th, 2017 10:47 PM
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Ozark Ed



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I would use the Hodgdon data for the 150 BT. I would also use Varget :wink:, my 308 loves it with 150's.



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 Posted: Thu Jan 26th, 2017 11:22 PM
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swampratt
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Here is a little reading on it.. not your barrel length but you may find a load in the range listed.

https://www.handloadersbench.com/forum5/40054.html


Test the loads in the cold and in the hot.. as CFE 223 is known for building pressure in the 308 when temps get warmer.

some reading.
http://forum.snipershide.info/showthread.php?t=130241

Last edited on Thu Jan 26th, 2017 11:26 PM by swampratt



 Posted: Sun Feb 26th, 2017 06:04 PM
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rnew2000
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Hi everyone. Just purchased some 168 gr Hornady vmax bullets. Anyone have a recipe that works other than the ones on the data load sites? I'm using Benchmark, and CFE 223. I'll try some other powders when I'm done with these.



 Posted: Sun Feb 26th, 2017 06:16 PM
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rnew2000, I think most people would be using data somewhere in the range of Minimum to Maximum within the manufacturers published data. Exceeding published maximums can only be done on a rifle by rifle basis, as even seemingly identical rifles may have small variations in throat dimensions, tight spots in bores etc. It all depends on reamer wear, final polish, hand lapping etc. That's why we start low and work up. A few rifles might not even be safe at published max loads. RD



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 Posted: Thu Mar 2nd, 2017 05:23 AM
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HighBC
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I've never chosen a powder or charge based on barrel length. Barrel length has nothing to do with powder type, burn rate, or the charge.

HBC



 Posted: Thu Mar 2nd, 2017 04:02 PM
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Based on your barrel length and the two powders, you have chosen to use, Benchmark is where I'd start. Benchmark loses less speed, than CFE223, as barrel length decreases, muzzle blast will be noticeably reduced as a bonus. You'll find benchmark to be slower, but with more accuracy and less fuss.



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 Posted: Thu Mar 2nd, 2017 04:08 PM
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RobertMT
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HighBC wrote:
I've never chosen a powder or charge based on barrel length. Barrel length has nothing to do with powder type, burn rate, or the charge.

HBC


Are you saying a 308win, in 14" barreled contender and a 308win, in a 32" barreled target rifle, could use the same powder and have it be best choice for both? I have loaded for both and found them behave very differently, regarding powder choices and results.



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 Posted: Thu Mar 2nd, 2017 04:14 PM
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runfiverun
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I dunno about best.
but if I had a variety of barrel lengths to work with they would still just get the same 308 load I have been using since the late 70's.



 Posted: Thu Mar 2nd, 2017 09:27 PM
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HighBC
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RobertMT wrote:
HighBC wrote:
I've never chosen a powder or charge based on barrel length. Barrel length has nothing to do with powder type, burn rate, or the charge.

HBC


Are you saying a 308win, in 14" barreled contender and a 308win, in a 32" barreled target rifle, could use the same powder and have it be best choice for both? I have loaded for both and found them behave very differently, regarding powder choices and results.


The only way to know is to load and shoot, but barrel length does not influence which powder will perform best. Two different barrels will indeed behave differently, but that doesn't have anything to do with which powders will perform optimally.

HBC



 Posted: Thu Mar 2nd, 2017 11:01 PM
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rnew2000
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Thanks everyone.



 Posted: Thu Mar 2nd, 2017 11:12 PM
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gahandloader
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Given the barrel length IMR 3031 would likely be a good choice, of course IMR 4064 is never a bad choice in the 150 to 168 grain range.



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 Posted: Fri Mar 3rd, 2017 12:54 AM
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bigedp51
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rnew2000 wrote: Looking for some load data for Hornady 150gr FMJBT using CFE or Benchmark. This will be out of a Ruger American bolt gun.
Look in the manuals under rifle and pistol loads for the same caliber and check which powders produce the highest velocities for the same caliber.

In the Lyman manual IMR-3031 produced the highest velocity with a 150 grain bullet in a 24 inch rifle barrel and a 15 inch Contender.

I'm assuming this is the youth or compact model with a 16 inch barrel.

The fastest powder listed for the 15 inch .308 Contender is IMR-4198 and the slowest is Varget.

You can also make up reduced loads with H4895, below sugested start loads and this is the powder I use in my 20 inch .308 Savage Hog Hunter for standard loads also.
(meaning middle of the loading chart)

HODGDON® H4895® REDUCED RIFLE LOADS

For Youth Hunting, Informal Target, and Plinking
https://www.hodgdon.com/wp-content/uploads/2016/11/h4895-reduced-rifle-loads.pdf


Last edited on Fri Mar 3rd, 2017 12:55 AM by bigedp51



 Posted: Fri Mar 3rd, 2017 01:26 AM
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rnew2000
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Thanks. This is in an 18 inch barrel.



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