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 Anyone using IMR 4064 for .308 match loads?
ds3_09  [Member]
2/15/2009 5:34:01 PM EST
I am going to try some 4064 soon. I will be using 168gr and 175gr BTHP's. The rifle is a FN SPR A1a which has a 20" barrel w/ 1:12 twist. I just wanted to see what peoples pet loads arew/ this powder for 168gr and 175gr bullets for .308. I am curious if there is a certain range of powder charge that works for most people. Oh and I plan to work the loads up as I know how important this is for safety. So anyone have any data they are willing to share?
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308Sako  [Team Member]
2/15/2009 5:36:18 PM EST
Sierra bullets, Sierra manual... great proven advice.

Excellent choice of powder for the two bullets, start low and work up to what your barrel likes while using a professionally prepared manual like above.

http://yarchive.net/gun/ammo/308_loads.html

There is some good advice found here as well.
mikesredbronco  [Member]
2/15/2009 6:50:58 PM EST
Originally Posted By 308Sako:
Sierra bullets, Sierra manual... great proven advice.

Excellent choice of powder for the two bullets, start low and work up to what your barrel likes while using a professionally prepared manual like above.

http://yarchive.net/gun/ammo/308_loads.html

There is some good advice found here as well.


Follow this advice but I'll share my load also 43.2 gr.4064 168 sierra matchking BTHP out of a remington 700 LTR 20"
quantim2  [Team Member]
2/16/2009 5:03:41 AM EST
I have found that 42.5 gr 4064 behind a 168 gr Nosler BTHP works well. I haven't gone over that yet, but I will be trying 23.0 gr my next range trip.
7zero1  [Team Member]
2/16/2009 5:42:05 AM EST
Originally Posted By ds3_09:
I am going to try some 4064 soon. I will be using 168gr and 175gr BTHP's. The rifle is a FN SPR A1a which has a 20" barrel w/ 1:12 twist. I just wanted to see what peoples pet loads arew/ this powder for 168gr and 175gr bullets for .308. I am curious if there is a certain range of powder charge that works for most people. Oh and I plan to work the loads up as I know how important this is for safety. So anyone have any data they are willing to share?


Sir, while my actual experience shooting cartridge reloaded with IMR 4064 was reasonably good, actual reloading specifically charging each case with powder was a PITA because the individual powder grains are so coarse. Since the match barrels of my M1As are all 1in 10 twist my actual loads used will probably not serve you well. When using IMR 4064 I found that trickling each charge was the only way to get a consistant charge weight within a reasonable tolerance. None of the powder measures I have would accurately meter this powder. My powder measures include a Dillon measure, a Redding 3BR, and a Pact Electronic scale/dispenser combo. When you have to trickle each and every charge it becomes quite tedious over the course of a few hundred rounds. JMHO, 7zero1.

yellowhammer1  [Member]
2/16/2009 1:35:55 PM EST
Originally Posted By ds3_09:
....I just wanted to see what peoples pet loads arew/ this powder for 168gr and 175gr bullets for .308.... So anyone have any data they are willing to share?


42.5 gr IMR4064, 168gr SMK, Black Hills Match (Winchester) cases, WLR, OAL 2.800 = snake eyes @ 100 meters:



Savage 12 w/24" Lothar Walther 1:10 SST barrel... Shoots good in my FAL's and DPMS also...
borderpatrol  [Member]
2/16/2009 2:47:49 PM EST
I use military brass when reloading for semi autos. When using Lake City or IMI brass you must reduce your charge weight by at least one whole grain. Maximum loads using LC match brass, Winchester standard large rifle primers and Sierra 168 grain Match Kings seated @ 2.80" is 41.5 grains of IMR-4064. I had better accuracy in one rifle using 40.5 grains. Most of the time I load 41.0 grains. The NRA has a Semi Auto Rifle book available that has actual chamber and port pressure measurements using common powders in .308, including this powder. Good book.
machinisttx  [Team Member]
2/16/2009 3:56:36 PM EST
I've had better luck with 175 grain SMKs and 4064 than with the same bullet and Varget. I need to do more shooting with the 4064 loads, but they look more promising than anything I got with Varget.
Elwood_Blues  [Member]
2/18/2009 8:08:30 PM EST
With the 308 and the M1A combination, I could not find even a merely acceptable powder. Everything I tried was excellent. I used 4064 among others until i ran out, and then started on 3031 as I had so much of it.

I don't mean to beat a dead horse, but I ASSuME you know the large disparity in case weights with the 308? It is a very real problem in taking someone's reloading data for your batch of cases. I wish I had my old reloading book with me, but I had target loads varying by ~2-3 grains or so according to the case - lightweight Win cases to heavyweight GI or (FC?) cases.
brianf31  [Member]
2/19/2009 2:37:33 AM EST
I just loaded up some 4064: 41.5 grains with a 168 BTHP and 2.800" OAL. Haven't had a chance to shoot it in my M1A yet. I also loaded up some 3031 at 39.0 grains. Both of those are definitely coarse powders.

The powders I had are old, lilke "in the metal can" old . The sticker said $13 I tested some with a match just to make sure it would still light off.
dragon  [Member]
2/19/2009 4:15:20 AM EST
IMR 4064 is all I use in my 308 loads. 42.2 grains with a Nosler 168gr HPBT J4 on top, using CCI 200 primers and Winchester brass. 2.795" OAL.
ds3_09  [Member]
2/19/2009 4:16:29 AM EST
Originally Posted By Elwood_Blues:


I don't mean to beat a dead horse, but I ASSuME you know the large disparity in case weights with the 308? .


Yes I know and I always work my loads up. I have about 900 Remington cases that I will be using for now.
Muskyjerk  [Team Member]
2/19/2009 6:04:16 AM EST
Originally Posted By yellowhammer1:
Originally Posted By ds3_09:
....I just wanted to see what peoples pet loads arew/ this powder for 168gr and 175gr bullets for .308.... So anyone have any data they are willing to share?


42.5 gr IMR4064, 168gr SMK, Black Hills Match (Winchester) cases, WLR, OAL 2.800 = snake eyes @ 100 meters:

http://images.photo1.walgreens.com/232323232%7Ffp43347%3Enu%3D324%3A%3E6%3A2%3E699%3EWSNRCG%3D323439%3A%3A%3B3476nu0mrj

Savage 12 w/24" Lothar Walther 1:10 SST barrel... Shoots good in my FAL's and DPMS also...


Two shot groups prove nothing, I am not saying you cant shoot, but I can get two shot groups from surplus ammo like that given enough chances.
quantim2  [Team Member]
2/19/2009 8:09:24 AM EST
yellowhammer1  [Member]
2/20/2009 7:21:55 AM EST
Originally Posted By Muskyjerk:Two shot groups prove nothing, I am not saying you cant shoot, but I can get two shot groups from surplus ammo like that given enough chances.


Wow, a challenge to my masculinity... Well, how about this one, shot same day, same range, same rifle, same load, same trigger jerker:



Care to guess how many went into that hole? Hint: don't just count the outside edges - you'd be way short...

As for that little snakeyes group... I see beauty in symmetry, especially if it's a killing machine... call it a character flaw
Muskyjerk  [Team Member]
2/20/2009 8:30:06 AM EST
That's better now I can believe the snake eye pic


Nice shootin
hunt127588  [Member]
2/21/2009 8:12:43 AM EST
42.2 gr in Lapua brass with a F210M and 175 SMK. It's boss.
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