Varget and temperature sensitivity.

[johara1]

Terry, I use the same method with RL-15, so what do you do with the lot that won't shoot and or the the lot that can't reach the velocity ? All RL-15 will shoot…… so i mix them….. Only Varget i keep is for Fire forming, now H4895 is an other story …. jim

 

[Terry]

Terry, I use the same method with RL-15, so what do you do with the lot that won't shoot and or the the lot that can't reach the velocity ? All RL-15 will shoot…… so i mix them….. Only Varget i keep is for Fire forming, now H4895 is an other story …. jim

Jim

I have never had a bad lot of varget. Some is slower or faster, but I have never had Varget that would not shoot good groups.

 

[Jason Boersma]

I shoot varget in my Brx and I have never had any issues in different temps and has shot good. Never have found R15 to be able to try it, maybe someday but for now varget works for me

 

[johara1]

I don't know what your standards are for "shooting good" mine are 2" at 1000 and zeros at 100 Yd's. and Varget doesn't give me that……. jim

 

[jlow]

Terry, I use the same method with RL-15, so what do you do with the lot that won't shoot and or the the lot that can't reach the velocity ? All RL-15 will shoot…… so i mix them….. Only Varget i keep is for Fire forming, now H4895 is an other story …. jim

Since the topic is temperature sensitivity, isn't RL-15 pretty temp sensitive?

 

[Jason Boersma]

I get my load to shoot one hole groups at 200 yards, low .2's, and single digit es and sd. At 1000 at Harris, where the wind always blows, I like to get 3"-5" groups and at the end of the season when the barrel was shot out it still made it in shoot offs.

 

[Terry]

I don't know what your standards are for "shooting good" mine are 2" at 1000 and zeros at 100 Yd's. and Varget doesn't give me that……. jim

Jim

I'm not challenging you, I'm glad RL15 is working for you.

 

[johara1]

Terry, No, i'm just trying to compare results. H4895 is better than Varget for temp……. jim

 

[jlow]

So what is the temperature related fps change with H4895?

 

[Bindi2]

I reckon all you blokes in the STATES should stop buying Varget so us Aussies can get some of our own powder.

 

[jlow]

If we stop buying, they will just make less.... ;D

 

[Bindi2]

If we stop buying, they will just make less.... ;D

No it is their pocket money.

 

[bigbore]

If you want to know how stable ADI powders are ask the Australians, they have some of the most extreme temperatures on our planet.

I live in Australia. Where I live we shoot all year round. At present it is summer and days temps can go to 40 degrees C easily. In winter temps are around 0 degrees C in the mornings.
With Varget or 2208, as it is known here in OZ, I use the some loads all year round with the 6br and 6x47L. The powders low temp sensitivity being the reason.
Another Australian powder 2209 or what you know as 4350 is the same.
The thing I watch for is variations in batch numbers. The burning rates can vary slightly. I pick this up with my Magneto and adjust accordingly if neccessary.

Hope this helps
Cam
F Open Shooter in OZ

 

[Bindi2]

As Bigbore said -3c or 4 at night to 45c+ during the day. Have seen 50c. These temps are taken in the shade. One rifle one load one powder, 2 rifles same powder another load, medium cases Varget, in fact ADI powders pistol, rifle, shotgun.
I also shoot F/O 308 with a single digit FPS spread on the low end.
My pistol load also runs single digit FPS spread and these are bulk loaded on a hornady projector press.
Still reckon you STATE SIDERS should stop buying Varget. Not good for you guns too temp stable you need variation to use more of the target and let a few Bambis etc run wild to keep the greenies happy. ;D

 

[johara1]

Don't know exactly what the temperature rating is but i see where 8208 is the least sensitive followed by H4895 and then Varget. All this but i still can't make any powder shoot better than RL-15 in the Dasher,shooting small means more than the sensitivity. I can adjust the load for temperature but if it doesn't shoot small it won't win and there isn't a first place for having the least sensitive powder. I move .1 of a gr. above 90 degrees…… Last year i didn't move at all……… jim

 

[Mr. Ten-X]

Don't know exactly what the temperature rating is but i see where 8208 is the least sensitive followed by H4895 and then Varget.

I thought that the ADI AS8208 was the powder sold to the US market as Varget...?

 

[jlow]

My understanding is the width of the accuracy node depends on the barrel and heavier barrels have a wider accuracy node and so I presume less temperamental when it comes to moving off the node when temperature changes significantly. So those with wider node barrels would likely be less concern about temperature but others might be more concerned.

Just learning, I can be corrected if I am not correct.

 

[johara1]

Mr.Ten-x, IMR 8208 XBR is not Varget…… jim

 

[Mr. Ten-X]

Where can I see the data that supports this IMR powder being less temperature sensitive than Varget or any of the H-Extreme series powders?

 

[jlow]

Would also like to see this too!