Berger 155.5 Fullbore and imr4064

[cmysix]

Berger say's IMR 4064 40.0 start 2523 max 44.5 2800 103% fill 1-13 twist or faster.

 

[Ray123]

Looks like the IBI barrel likes the 4064 to me.

Many times it's not the powder but the bullet that the barrel likes. Plus Sierra used to have IMR 4064 as their accuracy powder on the bottom of the pages of many of their bullets for 308 in the old manuals...but I tried it several times, and found it lacking in several 308s I own. I have a non match flat base bullet that shoots good with every 308 I own even ARs with LC brass 5 shots under a half inch two groups in .3 and .4 ...wonder what these bullets would do with 4064,..I have a little left ...good luck with your project and if it's "the bullet" for your barrel it will shoot with a number of powders...and it must live up to your expectations not mine.

 

[Canuckenstein]

Many times it's not the powder but the bullet that the barrel likes. Plus Sierra used to have IMR 4064 as their accuracy powder on the bottom of the pages of many of their bullets for 308 in the old manuals...but I tried it several times, and found it lacking in several 308s I own. I have a non match flat base bullet that shoots good with every 308 I own even ARs with LC brass 5 shots under a half inch two groups in .3 and .4 ...wonder what these bullets would do with 4064,..I have a little left ...good luck with your project and if it's "the bullet" for your barrel it will shoot with a number of powders...and it must live up to your expectations not mine.

The chamber is a 2011 Palma chamber. So 155.5 or less. I used 168 SMKs and made a bunch of far more accurate 168GMM clones. Necks skimmed, flash hole deburred, trimmed to identical lengths and case volumes measured to be .02gr identical.
Federal brass is a plenty for the taking after a m14 match.

They shot amazingly out of the last barrel, was SAAMI spec Rem factory. I could print easily .5 or less at 100m all day with this load. It out shot my friends RPR in .308 with the same rounds. It was one of the m700 tactical 20” in the hogue stock. It drove him insane because his rifle and scope combo was twice what mine was. That rifle taught me a lot about how to get accurate reloads, through precise brass prep, Bryan Litz books, some good loading equipment (forster,21st century ect ect) and measurements (record everything!!!).
I learned what worked and what didn’t.

I also owe a lot to the book precision hand loads a old spiral bound job. Not to mention the fine ladies and gentlemen of this site.