IMR 4320

[krxm21]

I have tested IMR4320 in both 6BR and .223

Groups are not good and I hit pressure in the .223 before 4064 and 4895.

Is anyone having any luck with IMR4320?

 

[BobKingsbury]

Something else is wrong

 

[krxm21]

pet load anyone?
Anyone at all?

 

[yat3b35]

IMR4320 is not the ideal powder for either of those rounds.Check out the 2 site below for your answer.



http://www.6mmbr.com/6mmbr.html




http://www.6mmbr.com/223Rem.html

 

[krxm21]

This from IMR

Short granulation, easy metering and perfect for the 223 Remington, 22-250 Remington, 250 Savage and other medium burn rate cartridges. It has long been a top choice for the vintage 300 Savage cartridge as well.

At least on powder chart puts it between 4895 and Reloader 15.

If Wolf ever brings in more Russian small rifle magnum primers, I will try it with them.