Why Not IMR 4064 or 4895??

J

JasonYuke

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Just going to throw this question out there, I tried some 4064 and 4895 in my 308 yesterday and found the groups to be as good if not better, maybe even a little more predictabe over Varget and RL-15?

Why do not serious long range shooters use these powders? is it because of the lower velocity, temp sensitive powders? or lot to lot variables?because I have found little difference shooting 4064 or 4895 from summer to winter.

Any experience out there using these powders why to avaoid them for competitionshooting?

Sure they do not throw as easy but i measure each load anyway!

I founf 4895 to be the best, shot 4, 5 shot groups under .5 moa hot to cold bore shots as well, more predictable in a cold bore shot!
 
4064 and 4895 are still used and even 4895 SC (short cut) if you can find some. I found Varget to be cleaner burning than either IMR powders. In the last few years the trend is moving from Varget to RL-15.
As far a velocity goes I am getting around 2950 with a 155 moly coated bullets out of a 30 inch barrel with Varget.
 
The problem I see with 2895 the book lists a max velocity of 2500 fps with a 175 MK, bit slow, will need to chrony this to confirm.
And as you suggested I am getting 2750 with varget!
 
H4895 mixed with Hornady 87gr v-max is da bomb Yo, in my 6mmBR. Love that stuff. +H4895 is a little bit cheaper than varget, but each to their own I guess. B-safe & Happy Shooting :)
 
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Varget is least affected by temperature.................I use varget exclusively and fing it VERY consistent thoughout the year...............(Although I am going to play around with RL-15 when I can find some).

I get 2750 fps using a Sierra 175gr MK or a Hornady 178gr AMAX buller, both Moly Coated.

IMR 4064 & 4895 have been used in the .308 for decades and are excellent powders.............

Also look at WW-748 and H-BLC2. I used H-BLC2 for years and got great results..............

SKBY.
 
Skullboy said:
Varget is least affected by temperature.................I use varget exclusively and fing it VERY consistent thoughout the year...............(Although I am going to play around with RL-15 when I can find some).

I get 2750 fps using a Sierra 175gr MK or a Hornady 178gr AMAX buller, both Moly Coated.

IMR 4064 & 4895 have been used in the .308 for decades and are excellent powders.............

Also look at WW-748 and H-BLC2. I used H-BLC2 for years and got great results..............

SKBY.
Click to expand...
+1.
308Win is one of the most 'forgiving' of rounds...some rifles can show a real preference, but all of the mentioned powders...IMR 4064 and particularly 4895, WW -748, etc...tend to give pretty consistent results...
Sometimes it's a matter of using what you can find!
 
Skullboy said:
Varget is least affected by temperature.................I use varget exclusively and fing it VERY consistent thoughout the year...............(Although I am going to play around with RL-15 when I can find some).

I get 2750 fps using a Sierra 175gr MK or a Hornady 178gr AMAX buller, both Moly Coated.

IMR 4064 & 4895 have been used in the .308 for decades and are excellent powders.............

Also look at WW-748 and H-BLC2. I used H-BLC2 for years and got great results..............

SKBY.
Click to expand...

46.5 gr of BLC-2 and 178 A-Max Key hole for me with my Tikka Tactical,
The 700 Mil-spec 308, does not like it, it only likes Varget and IMR 4895 powders, RL-15 groups open up?? 1 moa or greater at 100 m...

Also use BLC-2 in mt 308, 700 hunting rifle with 165 sp Interbonds and it will make some target rifles nervous!!!!

I guess the only negitive I see is velocity is down with 4895...
 
If the A-max keyholes, it is unstable which means your twist may be too slow for this bullet.
I think 4895 is a great powder in the 308 and is my first choice when developing loads for under 600M. 4064 is another great powder but doesn't meter well through the measure. For those who weigh charges, I guess this isn't a problem.
I hate 748 but it has been the most accurate powder in a few 308s. With heavy bullets (like 190s and 200s) I have had good results with 4350. #08s work good. Regards, Bill
 
IMR 4064 and 4895 are two of my favorites in the 308, others that have also worked well are the W748, IMR3031, AA2520 and Varget, the one that I use today is the AA2520 it has shown the best accuracy in two of my 308's!
bigbull
 
I agree with Leeper...the only downside to those two powders is the fact that they are quite large(long) stick type powders and thus they will not meter as accurately as smaller grained powders.
 
I have used 4064 with good results, but, here in Sask. have gone out shooting when I can and it can be 30+ at that time. The heat has given me some scary looking primers with 4064, went back to Varget and no problem. Maybe just a convience issue but the weather varies here and be damned if I am going to work up temp specific loads.
 
It really amazes me that that no 2 rifles will shoot the same and that not all rifles like the same powder and charge,use what works the best for you
 
IMR 4895 and 4064 are made from the same mix, but extruded differently. Within reason, they are interchangeable. 4895 will meter a bit better. 4064 is very chunky.

Varget is similar in speed, but much less temperature sensitive to the other powders mentioned. This is a fact. In my experience it is a little more fussy in finding a top notch load.

RE15 is a good powder for developing target loads, but is a double base powder and more temperature sensitive than 4895/4064. It is slightly slower than the other powders. It measures very well.

The ball powders are all double base (temperature sensitive), meter perfectly and burn hotter and a bit harder on barrels. This is an issue to target shooters who put 1,000 or more rounds through a barrel each season.

I have used several tons of IMR 4895 and RE15 and am hard pressed to say one is better than the other.

IMR powders are made in Valleyfield, Quebec. Varget comes from Australia. RE comes from Sweden.
 
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