Accurate 4064 with 6 Dasher?

[CA_Shooter]

Has anyone used Accurate 4064 in a 6 Dasher? I bought 8 lbs because I can't find any of the usual powders for 6 dasher. I'm also new to the dasher. I'd be shooting tge Hornady 108 ELDs

 

[Hoot]

QuickLoad says 31-33gr is a good workup. 100% burn in a 26in barrsl, 91.6 to 100% fill @ 2.358 COL. Good Ballistic Efficiency. FWIW 108 ELD-M's are my favorite 6mm anything bullet.

Good Luck

Hoot

 

[CA_Shooter]

QuickLoad says 31-33gr is a good workup. 100% burn in a 26in barrsl, 91.6 to 100% fill @ 2.358 COL. Good Ballistic Efficiency. FWIW 108 ELD-M's are my favorite 6mm anything bullet.

Good Luck

Hoot

Thanks! I've never used quickload before but have seen it referenced in threads. I'll try out that range

 

[Ned Ludd]

I purchased a fair bit of AA4064 earlier in the year to work up a practice load with 185 Hybrids in one of my .308 Win F-TR rifles so as not to burn up all of my Varget and 200.20Xs during practice. When I first started with charge weight testing, temps were routinely in the upper 80s/low 90s. I set that project aside for a month or so, and now the fall weather has moved in, with much lower temps, generally in the mid 50s to upper 60s. In my hands, a load that routinely yielded 2725-2730 fps for a given charge weight at 90 degrees dropped to 2705-2710 fps at 75 degrees, and then verifiably plummeted to 2660 fps at 60 degrees. I had really not been expecting the AA4064 to be that temperature-sensitive.

As a result, I have been doing a little more charge weight and seating depth testing, combined with QuickLoad analyses, and will simply have to live with adjusting the charge weight and/or seating depth to better optimize loads and accommodate even relatively small temperature changes of less than 15-20 degrees. I figure having one load for ~80+ degrees, one for ~65-80 degrees, and one for below 65 degrees will probably cover all my bases, and the charge weight adjustments necessary to do that will likely be much greater than just a tenth grain or two. Not trying to bear the bearer of bad tidings here, but I figured you would want to know about issues such as the temperature sensitivity of the AA4064. It's not a deal breaker, but will require a little more effort if you intend to shoot across a temperature range of something like 50-90 degrees.

 

[CA_Shooter]

I purchased a fair bit of AA4064 earlier in the year to work up a practice load with 185 Hybrids in one of my .308 Win F-TR rifles so as not to burn up all of my Varget and 200.20Xs during practice. When I first started with charge weight testing, temps were routinely in the upper 80s/low 90s. I set that project aside for a month or so, and now the fall weather has moved in, with much lower temps, generally in the mid 50s to upper 60s. In my hands, a load that routinely yielded 2725-2730 fps for a given charge weight at 90 degrees dropped to 2705-2710 fps at 75 degrees, and then verifiably plummeted to 2660 fps at 60 degrees. I had really not been expecting the AA4064 to be that temperature-sensitive.

As a result, I have been doing a little more charge weight and seating depth testing, combined with QuickLoad analyses, and will simply have to live with adjusting the charge weight and/or seating depth to better optimize loads and accommodate even relatively small temperature changes of less than 15-20 degrees. I figure having one load for ~80+ degrees, one for ~65-80 degrees, and one for below 65 degrees will probably cover all my bases, and the charge weight adjustments necessary to do that will likely be much greater than just a tenth grain or two. Not trying to bear the bearer of bad tidings here, but I figured you would want to know about issues such as the temperature sensitivity of the AA4064. It's not a deal breaker, but will require a little more effort if you intend to shoot across a temperature range of something like 50-90 degrees.

That's really good info, thank you. I can see the temperatures going from 50 degrees in the morning to 85 during the day or something like that. I'll need to pay attention to that