6 BR w/ 105&107 with IMR 4064 ?

[Baddog0302]

Searching load data for the 6 BR with 105 & 107 gn. bullets I find that the favorite in Varget, followed by H 4895.
My question is , since IMR 4064 falls slower than both 4895 powders on the burn rate charts , and offers a higher % of loading density , Is that fact that 4064 doesn't meter/throw and each charge has to be trickled, is the reason no one uses it in a 6 BR ??

 

[watercam]

My experience with 4064 shows it great on velocity and precision but with very long kernels. Makes it tough to get enough powder into a .308 case w/ 155s. Not an apples to oranges comparison but be prepared for some possible kernel crunching.

 

[shoot4fun]

I would think before experimenting with IMR4064 you would look at IMR4166 instead. It is very close to IMR4064 but is much more temp stable.
That said, Hodgdon's data shows zero data for either powder. In fact 8208XBR is the only IMR number they list with the 107.

 

[JimSC]

Just getting into the 6BR myself but from what I have found using the bullet manufactures manuals and various powder manufacture data 6BR powders seem to be the powders that work with .223 for the most part

 

[Baddog0302]

My experience with 4064 shows it great on velocity and precision but with very long kernels. Makes it tough to get enough powder into a .308 case w/ 155s. Not an apples to oranges comparison but be prepared for some possible kernel crunching.

Last night I loaded a 6 BR case with 30.0 Gn of IMR 4064, the top of the powder was just below the neck /shoulder junction. The 30.0 Gn. might be to much, as most data using Varget Max's out at 30.0. So I'll start with 28.5 and work up. Also, I load 44.0 gn of 4064 under a 155 for my 308 AR's loaded at Mag. length and don't remember any "crunching" bet then I suffer from C.R.S

 

[Baddog0302]

I would think before experimenting with IMR4064 you would look at IMR4166 instead. It is very close to IMR4064 but is much more temp stable.
That said, Hodgdon's data shows zero data for either powder. In fact 8208XBR is the only IMR number they list with the 107.

Shoor4fun
I've seen 8208 listed on a few forums dealing with the 6 BR. seams kinda fast but will give it a try. with 12# of I-4064 , I'm trying to find other uses for in besides 308 & 223 AR's.

 

[shoot4fun]

Shoor4fun
I've seen 8208 listed on a few forums dealing with the 6 BR. seams kinda fast but will give it a try. with 12# of I-4064 , I'm trying to find other uses for in besides 308 & 223 AR's.

I shoot with guys that use 8208XBR almost exclusively in many of the 6BR variants such as BR and BRX. In fact, I used it in my first 6BR behind the 107SMK and had a lot of success. I wish I could remember the load I used but it has been a while.

 

[biggun2869]

I'm an antique but have a long love affair w/ 4064. Haven't tried it 6 br yet but have wondered the same thing. I always use a Lee dipper of the right size to throw just below charge then trickle up so the big grains don't bother me at all. I've been using T32 in the 6BR. I have plenty and its' just where I started because it shoots so well in my .22BR.
The 22BR is a Remington w/ Kreiger bbl 12 twist and the 6BR is an older savage w/Kreiger 10 twist.I use 52grn Bergers in the 22 and 80 grn Bergers in the 6BR. I personally like the Remington a lot better.

 

[HTSmith]

Last night I loaded a 6 BR case with 30.0 Gn of IMR 4064, the top of the powder was just below the neck /shoulder junction. The 30.0 Gn. might be to much, as most data using Varget Max's out at 30.0. So I'll start with 28.5 and work up. Also, I load 44.0 gn of 4064 under a 155 for my 308 AR's loaded at Mag. length and don't remember any "crunching" bet then I suffer from C.R.S

Please report back with your results. I4064 has always been my favorite for 30/06 and I've got a fair bit of it.

 

[linedrive301ft]

4064 shot well in my initial testing with my 6BR. Accuracy was good but it did not give me the speed
I wanted. I finally settled on H4895 and varget for Tactical and FTR. Just started testing IMR 4895
and it is showing some good results.

 

[JFrank]

Timely thread,
I have approximately 6 lbs of 4064 I’ve been thinking about giving a whirl in a 6br.
I’m retiring very soon with plenty of spare time and a tuning range on the ranch.

 

[perazziguy]

I've always liked 4064 in the 22-250, so I loaded a few to try in my 6 br at 29 grains with 105 RDF's 0.010 in the lands to try. Plan to work up watching pressure then fiddle with seating depth. I'm curious to see how it pans out.
Jonathan Taylor

 

[urbanrifleman]

Should be almost the same as Varget loads or R15 loads.

 

[JFrank]

Should be almost the same as Varget loads or R15 loads.

Getting enough into the cases is my concern. We will see what we see when we see it.
J

 

[STOMP442]

The last BR I built much preferred IMR 4064 over Varget or H4895. In fact, IMR4064 has been a solid performer in all three of the 6mmBRs that I own. The only downside with it is that you can have some temp swings in extreme hot or cold. For the most part though its a good accurate powder.

 

[Baddog0302]

Just as an update on this project, I step loaded 1 round each from 28.5 gn up to 30.0, I used some "seconds"107's I got from Midway which didn't group very well with 29.0 gn of Varget. They were seated to touch the lands. The 30.0 gn showed no more pressure signs that the 28.5 Gn.. As soon as weather permits I plan to test both 30.0 Varget & 4064, for fps ect. and then with 107 SMK's & H 105's
Updates as they come

 

[divingin]

Last night I loaded a 6 BR case with 30.0 Gn of IMR 4064, the top of the powder was just below the neck /shoulder junction. The 30.0 Gn. might be to much, as most data using Varget Max's out at 30.0. So I'll start with 28.5 and work up.

I've loaded Varget up to 31.5 with 105 Hybrids and VLD's without seeing pressure signs (my rifle, not yours - work up accordingly; this is a straight 6mm BR Norma.) Sweet spot for my application seems to be down around 29ish though. Don't recall trying 4064 in 6BR.

 

[SGT. Slaughter]

Just as an update on this project, I step loaded 1 round each from 28.5 gn up to 30.0, I used some "seconds"107's I got from Midway which didn't group very well with 29.0 gn of Varget. They were seated to touch the lands. The 30.0 gn showed no more pressure signs that the 28.5 Gn.. As soon as weather permits I plan to test both 30.0 Varget & 4064, for fps ect. and then with 107 SMK's & H 105's
Updates as they come

Sir,
I was interested in your results loading with imr 4064 for the 6br with the 100 grain class bullets. Starting load and where you ended up and where your velocities were at would be a great big help. Any information you can provide will be greatly appreciated. Thank you Sir.

 

[JFrank]

I ran a ladder of 4064 in my 6 br Ackley , seemed to like the top side.

 

[SGT. Slaughter]

Thank you Sir for the response, not alot of information on 6br/6bra with imr 4064.
Thanks again.