Backcountry sports
Well-Known Member
R15 and 4064
308 Load Development?
- Thread starter Eatonc
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rustyshackleford
Well-Known Member
I've been loading RL-15 behind 195 TMK's and am about to branch out. Btw RL-15 and Varget though RL-15 does give me about 50-75 ft/sec velocity advantage and has always shot tighter for me. I'm about to try some less finicky options over RL-15 and H4895. XBR8208 is supposed to be awesome with 150-155's but I've never loaded such light bullets nor had great success with that powder.
Do you mind telling me how much powder you are using with the 4064?
Well, as for RL15... I've found it to be perfect for about 99% of the .308's I've shot over the years; 43.3grs behind a 175gr Mk (2650 fps) it has always been magic in my rifles, they shoot inside the holes of a box of Federal Gold Metal Match 175gr. I can't tell them appart on the range. If you're just looking to test the rifle for accuracy; I recall'..., if memory serves me correct, there was a load the FBI used back "when." it was a 168gr Mk with 31.0grs of IMR 3031... they tested all their .308'r rifle for accuracy with this load. Anyway, good luck, I believe it's pretty hard to go wrong with RL-15 for your project.
Mackinaw BOB
Well-Known Member
Your best bet would be to figure out your own powder charge. Each rifle is different.
wonderman4
Well-Known Member
One of the best I have used with the 308 Win is IMR4320. German Salazar wrote an article about the powder in the 308 a few ears ago.
bulletin.accurateshooter.com
“Forgotten” IMR 4320 Powder Yields Great Results « Daily Bulletin
In his Riflemans Journal Blog, German Salazar has authored an excellent article on IMR 4320 -- The Forgotten Powder. German tested IMR 4320 and found that it produced outstanding results both in the .308 Winchester and the 30-06. This means that shooters have another very effective propellant...
Hoppsing55
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- Jul 11, 2015
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My Savage 110 Tactical 308 win likes 43.4 gr of RL 15 pushing a 168gr Sierra MK or Nosler CC at 2625fps = consistent 1/2" moa.
Can't remember how much but I can check it you want me to. It is under max. Backed off when groups opened up.
Nah that's ok. I was just curious. Thanks though. I Think I've got some good powder options to try out so will see where I end up.
Mine shoots 168's with good accuracy using IMR 4064 @ 2640-2650 fps. They are all different. Most 308's shoot well but which recipe your gun likes will be determined by you and the gun. All the powders listed have a history of good accuracy. IMR 8208 XBR also has some fans.
thatguyshm
Well-Known Member
My test load for any 308 has always been 42.5-44.5 gr either IMR4064 or RL15 and a 165-168 bullet. If it won't shoot something in there then it's gonna be quite a road ahead finding what it does like.
