6BR load with 68 Berger

[Longone1]

Is anyone shooting the Berger 68 gr. in a 6BR with a 14 twist that would care to share your powder choice? I'm shooting the 70 gr. Sierra with 2460 and would like to try the Bergers.

Thanks, Longone

 

[hogpatrol]

32.5 grains 8208 with .025 jump, Lapua brass, Fed 205s work well for me. 6br, 1-14 lijla, rem 700 action. Hog

 

[rbertalotto]

Vit N135 was made specifically for the 6BR............There is none better!

Start at 31g and work up from there...........

 

[alf]

H-322 was the powder of choice for 6PPC's before 133.

Still a good pick for the BR......

 

[rbertalotto]

You might find that H322 and Vit N133 are just a bit too fast for the larger 6BR with 65-68 grain bullets. H335 would be a better choice in the Hogdon line. Vit N133 was developed for the 6PPC, but was a bit too fast for the 6BR so they developed N135

 

[fdshuster]

RoyB; N133 too fast for the 6 BR? 30 grs. of N133 with the 68 Berger seated to touch 205/ 205M primers has been a consistant winner in all 4 of my 1-14 chamberings. Hart, Shilen, Kreiger & Bartlein barrels.

 

[243DH]

lapua brass, CCI br4s, 68 bergers and either 29.5gr of re10x or 30.2 -31.5 gr benchmark shot great in my 1-13.5 bartlein. I now use 66 gr barts standard with the re10x and the groups have shrunk even more .

 

[Longone1]

Thanks for the replies, looks like I need to go powder shopping.

Longone

 

[rbertalotto]

RoyB; N133 too fast for the 6 BR?

N133 leaves a bit too much airspace in the cartridge. 31 to 32 grains of V135 fills the case to a slight compressed load....perfect!
Whatever accuracy you are seeing with N133 will only improve with N135. Use both over a chronograph and see the rather startling improvement in SD.

 

[fdshuster]

RoyB: I have a good supply of N135, always keep it for the heavier than 70's, lighter than 85 gr. weights, am always open to suggestions & will give it a try. But the N133 has brought home my share of winnings in the local benchrest score match's over the past 7 years. Will also try both over the chronograph. Thanks.

 

[North Fork]

I have a 1x13 twist 6br i shoot the 68 and 80 gr Berger's i use vit n135

 

[Frankr]

longgone1, hey the 2460 will give good velocity but accuracy is poor to fair at best.
really just about any powder you want to try from H322 to varget shoot well, N135 shoots ok but if you really want to try and tune up some bug holes and keep it in tune you need to go to the fast powder.
My favorite is RL10x around 30.5Gr's will humm! I would start at 29.0 and work up to max then tune the bullet depth. My next favorite powder is yep N133 around 30.0gr to 31.5 or so. will give you what you want. I like to run the cci 450 primers with the RL10 and if they wont shoot with N133 i will go to the fed match primer.
that's all there is to it..lol..
I just ordered some 68Gr boattails for just that purpose, I will stick with the RL10 if this new barrel will shoot it.
You may also want to try some good custom 66GR bullets,I have had good luck with the Fowler's.

 

[Frankr]

RoyB; N133 too fast for the 6 BR?

N133 leaves a bit too much airspace in the cartridge. 31 to 32 grains of V135 fills the case to a slight compressed load....perfect!
Whatever accuracy you are seeing with N133 will only improve with N135. Use both over a chronograph and see the rather startling improvement in SD.

My load of N133 in one barrel was 31.5Gr's behind a 66 fowler and clocked them over the chrony at 3,550 FPS MV.
Hard to get that out of N135 unless you go to about 33.0+Gr's. and accuracy suffers.
And 30.5 Gr's is a full enough case and throw in 31.5 Gr's off my Harrell's thrower with a short drop tube is slightly compressed running a zero free bore.

My RL10 load at 30.5gr's runs a ES of 15 and i do mean 15FPS and a SD of @5FPS.
Ah i never chroney the N133 loads enough to get a Good read on the ES but im sure the SD were around 5-6FPS.

 

[Longone1]

I have some TAC , is that worth a try or not? Seems like it falls in between the powders that have been recommended.

Longone

 

[Frankr]

longgone1 , I have a can of tac and it has been the only powder that i have tyred in my 6BR that it would NOT shoot! But hey try away. let us know how it works..
really H322,benchmark,N133 or RL10 will probably give you what you want.

 

[gunsandgunsmithing]

h322 and n135 are the powders I've found to work best for me. Both shoot fine with the lighter bullets in the 6BR. My go to load for the slow twist 6BR's has been 30.5-30.8 gr of 322 with a 70 gr berger for a while...before that, it was the same but with a 74gr berger. They stopped making the 74's a few years back. The 70's appear to be the same, last I checked, other than the 4gr less lead. 135 works very well too. -Mike Ezell

 

[Frankr]

Mike i have had good luck with H322 and a 70 berger MEF varmint bullet, I shot them in my first 6BR, think i went through two 500 lots of them, accuracy was from .199-.280 Farley consistant. but searching for more accuracy or better tune, I shot H4895.H335 with good results but still looking for some kind of magic load I shot quite a few different powders and bullets.Burned up a two pound can of N135 shot well but was never that consistant along with slower powders varget and some others, now the whole time i have a can of N133(but also thought too fast at the time) and several custom bullets for a 6ppc. so i decided to try RL10x powder(it was new out at the time). so i worked up a load with RL10 behind a 66gr fowler bullet and was shooting groups in the .120-.250 with over half of the 5 shot groups in the mid .100's at 100yrds. so i kind of felt i was on to something. and at 1,500 rounds i decided to head to a BR group shoot with that load and did kind of bad, unable to read the flags and a failing barrel kind of did me in..but i have two new barrel in the works and some new bullets on order. And i will stand behind RL10x as the most accurate powder in the 6BR with 65-68 gr bullets.And if my new barrels shoot as this last one i hope to place well in a few BR group shoots to prove it. I also think that N133 also works well.

 

[Longone1]

OK, I get it. I'll go with the proven powders and let someone else re-invent the wheel.

Thanks for the direction.

Longone

 

[jo191145]

Ramshot Xterminator in the 6PPC and 6BR with 68gn HBN coated pills. Currently shooting up Bergers.
Tried the rest and like Xterm the best.
Both guns group just as well after 500+ rds with no cleaning. HBN seems to be the half the reason for that, powder choice the other half.
Theres always more than one wheel ;D

 

[amamnn]

N-135 has been the best powder choice in the last two 1/14 barrels on my 6 BR Norma. I've gotten better results with a slightly lighter bullet, but 32.5 grains seems to be the node for the 68 with both my Shilen barrels.

I've been playing with Berger's new 65 gr. WEB target bullet lately. I've found two nodes with it; one at 31.0 and another at 32.3 grains of N-135, which is just where the nodes were when using 66 gr FB custom BR bullets that cost $100.00 more per 1000. I've recently gotten more of these in two different lot# from my original order. It will be great if all the lots shoot the same........