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Loading For Gunsite Scout 308

This is a discussion on Loading For Gunsite Scout 308 within the Reloading forums, part of the Firearm Forum category; I've bought a new 16" Gunsite Scout 308, and I'm looking for good loads for it. It's been years since I've loaded 308, and I've ...


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Old April 10th, 2017, 07:03 AM   #1
 
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Loading For Gunsite Scout 308

I've bought a new 16" Gunsite Scout 308, and I'm looking for good loads for it. It's been years since I've loaded 308, and I've never loaded for a 16" barrel 308, so I'd appreciate your suggestions.

I've got CFE 223, and Varget, PPU brass, CCI 250 and 200 primers, and Hornady 150 gr SST bullets. Can get different powders and bullets if needed. Rifle will be used for deer hunting and targets.




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Old May 13th, 2017, 08:47 AM   #2
 
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Quote:
Originally Posted by 303 hunter View Post
I've bought a new 16" Gunsite Scout 308, and I'm looking for good loads for it. It's been years since I've loaded 308, and I've never loaded for a 16" barrel 308, so I'd appreciate your suggestions.

I've got CFE 223, and Varget, PPU brass, CCI 250 and 200 primers, and Hornady 150 gr SST bullets. Can get different powders and bullets if needed. Rifle will be used for deer hunting and targets.
I've never loaded for a barrel that short. The shortest I load for is a 20" barreled Browning BLR. Personally the load that works best for that rifle also works best for my 22" barreled Winchester 88. Dumb luck I guess. I'm using Hornady Interlock BTSP's 165gr. IMR3031 powder(39.0gr) and CCI #250 Magnum Large Rifle primers. Seems to be a good load for me. Bench rested at 100 yards I'm dropping rounds on top of each other all day long.

Cheers!
Mike
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Old May 13th, 2017, 11:13 AM   #3
 
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I can't really speak to the short barrel but I can tell you that I've loaded a metric ton or two of .308 Winchester (7.62 NATO) in my life and I don't think you can do much better than IMR 4895 or maybe IMR 4064.
Frankly, with that short barrel I'm not sure you're going to get standard velocities with ANY powder but the goal should be accuracy not speed.

With 150gr bullets, I would start with 41 grains of IMR 4895 and slowly work up to the max. (45 grains) in .5 grain increments. I would watch for signs of excessive pressure and measure the groups. If you make it all the way to the max load without signs of excessive pressure, pick the load that makes the smallest group. If you get signs of excessive pressure before you reach the max load - STOP and back the load off a little bit. Then select the load under that charge weight that produced the smallest group.

If the rounds will cycle through you rifle's magazine at 2.80" overall length, that's where I would seat them to. Chances are very good that seating to the cannelure will result in a C.O.L. of 2.80" anyway. Under no circumstances would I seat that bullet deeper than the cannelure.

Good Luck !

The .308 is one of the most versatile and accurate cartridges you will find.
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Old May 13th, 2017, 06:28 PM   #4
 
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Congratulations on your new rifle.. Don't let the short barrel put you off its one of the most handy hunting rifles I have ever used.. Never has a deer or hog complained about or noticed a possible 50 to 150 feet per second difference between it and a longer barrel before ending up in the freezer.
I used to reload .308 to keep cost down but just buy bulk cases of ammo now..I use factory Winchester large game specials through it. They are loaded with a 180 grain Woodleigh protected soft point projectile.
From the Woodleigh bullets reloading book for 180 grain its starting load 41 grains of Varget to a max 45.0 grains compressed..
The load for their Woodleigh 150 grain projectile with Varget is starting grains 44 to a maximum of 47 grains compressed load.
You will find something that works for you is plenty of data and projectiles available for it. Just start low and work up slowly in 1/2 grain increases from recommended minimum.
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Old May 15th, 2017, 08:24 AM   #5
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I have the 18" version, here is my loading.

Federal brass
Winchester LRP
Hornady 178gn AMAX
40.8gn Benchmark
2.84 OAL
~2500fps

It will shoot MOA if I do my part. It will probably be a bit slower in a 16" and might need to be tweeked.
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