Loads using AA 4064 Help..

[the once-ler]

I am in a tough pinch guys, getting back into shooting and had to resort to buying a powder I'm not familiar with. The burn chart shows it right in the sweet spot for those calibers. I reload 308 using 168 and 175 SMK's and 223 using 68 and 77 SMK's
Can anybody help me out on load data for these?

 

[918v]

What brass?

 

[the once-ler]

I am using FGMM relaoded and Lapua, does the brass make a difference?

 

[918v]

Yes. They have different capacities.

For the FGMM use 41.8grs and for Lapua use 42.2grs under the 175SMK.

 

[the once-ler]

Thanks 918 would you happen to have a min and max load for the 175 or 168?? I kinda need a starting point as I am not sure if what works good in your rifle would in mine.

 

[918v]

This is what's in the latest sniper ammo (MK316 Mod 0). It is a medium-high load or a starting load depending on whose manual you use. Don't waste your time. Use the above loads and tweak as necessary.

 

[the once-ler]

I just don't want to go over a max load

 

[918v]

When looking at data pay attention to the case they're using:

http://www.6mmbr.citymaker.com/f/sierra308Win.pdf

 

[the once-ler]

Are IMR 4064 and AA 4064 pretty much the same then?

 

[390fe]

http://www.accuratepowder.com/wp-content/uploads/2010/09/WP_LoadSpec_1-23-14.pdf

Accurate's website show this for their 4064 using the 175 grain SIERRA HPBT MatchKing
Starting load 45.8 grains - 2,572 fps
Max Load 50.9 grains - 2,790 fps
59,462 cup
3.290 coal

However, at 46.5 grains I'm showing signs of pressure - flattened primers with craters around the firing pin and sticky extraction.

 

[918v]

No AA is slower burning. I'm sorry, I thought you had IMR, missed the AA part.

I don't have any data for you. Accurate's website doesn't list it and QL predicts you'll end-up with a heavily compressed load. It's better for .30-06.

 

[390fe]

Page 42 has what you need:
http://www.accuratepowder.com/wp-content/uploads/2010/09/WP_LoadSpec_1-23-14.pdf


For the record, I'm showing signs of excess pressure at 46.5+ grains. I would start at 41 grains and go up from there.

 

[the once-ler]

I started working up some loads with the Accurate 4064 and was pleasantly surprised on how it metered and it's density is very similar to varget. 42grains of Varget and 4064 fill the shell to almost the same exact level. 390fe I would assume 46.5grains of varget or 4064 will start to show signs of excessive pressure depending on the bullet and shell

 

[390fe]

In my rifle anyway, that is the case. Yours may be different.

I started working up some loads with the Accurate 4064 and was pleasantly surprised on how it metered and it's density is very similar to varget. 42grains of Varget and 4064 fill the shell to almost the same exact level. 390fe I would assume 46.5grains of varget or 4064 will start to show signs of excessive pressure depending on the bullet and shell