Powder Suggestions for 6mmBR and 105s?

[Ruger15151]

Another bullet you may consider is Berger 108 boat tails. They are very accurate and extremely easy to tune.

 

[dc.fireman]

I shot a pressure ladder a while back with 4064, I wasn’t super impressed but I also only shot one round per increment.

Try something in the 29.5 - 30.2 gr. range with a 105 class bullet. My best results came from 30.1 gr., I went with 30.0 to keep it simple.

 

[bulaman]

Another vote for Varget or Reloder 15

 

[fm1947]

I am new to BR shooting and as my rifle is being built Im looking at different powder possibilities to push my Bart's Hammer 105 grn bullets out to 600 yards. Rifle is a 6MM BR Norma with 1:8 twist and a 28 inch barrel.

I live in northern Minnesota and would be competing most likely in the upper midwest. Gives a little info on temp requirements. I am also trying to obtain about 2900 fps.

Also new to the forum. Hope I posted this in the right place.

Thanks, Brew2

Varget!

 

[FredV]

I am new to BR shooting and as my rifle is being built Im looking at different powder possibilities to push my Bart's Hammer 105 grn bullets out to 600 yards. Rifle is a 6MM BR Norma with 1:8 twist and a 28 inch barrel.

I live in northern Minnesota and would be competing most likely in the upper midwest. Gives a little info on temp requirements. I am also trying to obtain about 2900 fps.

Also new to the forum. Hope I posted this in the right place.

Thanks, Brew2

I'm shooting my 6BR using 30.2 grains of Varget behind Berger 105 grain hybrids through a 30" 7 twist barrel getting an average 2982 fps, with a sdev of 6.6. Varget has gotten a bit spendy, so I have a jug of N140 in the wings. This load has been working great for me at 600 yards. Good luck. You've gotten lots of good options.

 

[Kracken McGraw]

Does anyone have a good lower node to try with Varget, if they were trying to get a little more case life?

 

[padom]

Does anyone have a good lower node to try with Varget, if they were trying to get a little more case life?

More case life in 6br??? I've been shooting 6BR for a LONG time and I have some brass with 30+ firings on it...

30-30.2gr Varget
29.3-29.4gr H4895

 

[JEFFPPC]

First things first. Ater you get a good load, key word after, check the velocity because many will be more interested in this than the results on target. Don't drop to that level.

 

[Kracken McGraw]

I

More case life in 6br??? I've been shooting 6BR for a LONG time and I have some brass with 30+ firings on it...

30-30.2gr Varget
29.3-29.4gr H4895

I appreciate that information.
I’m still scratching my head on why Sierra’s load data is so low on the charges for the 6BR.

 

[padom]

I

I appreciate that information.
I’m still scratching my head on why Sierra’s load data is so low on the charges for the 6BR.

It's a starting point. Just work up. But the well known 30gr varget load shoots great in so many 6br barrels of mine.

I can tell you I haven't shot out any 6br brass. When they get to that 25-35 firings I tumble them then they sit in the box. Primer pockets are still ok.

A lot of times I take my 10-15 firing lapua 6br brass and convert them to 22BR then shoot them in my 22BR and they are still going good there to...

This is the reason 6BR is one of my favorite cartridges....

 

[Bill K]

What does some of your loading manual/sheets suggest ? You may have to try several to see what your rifle/chamber likes best.

Thanks guys:
Having real trouble finding 4895 which is why Im looking around for new options.

 

[pilediver]

Does anyone have a good lower node to try with Varget, if they were trying to get a little more case life?

28.8 grains of Varget and a 105 is a good lower charge to try out.

 

[Bob3700]

First things first. Ater you get a good load, key word after, check the velocity because many will be more interested in this than the results on target. Don't drop to that level.

Jeff,
Have u noticed that no matter which barrel u have on ur rifle, the same basic load shoots in all ur barrels? In my BRX, if 33.0-33.5 gr of Varget/VV140 and a 105/107 gr bullet doesn’t shoot, the barrel gets pulled as there is something wrong with that barrel. I am not willing to spend the time n components figuring out what the odd barrel likes.
The velocity at the target ( using Shotmarker) always falls in the same range as well. One bbl may be 50 fps or so different but that is just the nature of different barrels and their round counts.
I shoot prone with a sling so perhaps in F-Class I would see something different.

 

[Kracken McGraw]

28.8 grains of Varget and a 105 is a good lower charge to try out.

Good deal!
Now that I have some once fired brass, I think I will do a powder charge test in .3 increments from 28 to 29.5 to test the waters based on y’all’s suggestions.

 

[JEFFPPC]

Jeff,
Have u noticed that no matter which barrel u have on ur rifle, the same basic load shoots in all ur barrels? In my BRX, if 33.0-33.5 gr of Varget/VV140 and a 105/107 gr bullet doesn’t shoot, the barrel gets pulled as there is something wrong with that barrel. I am not willing to spend the time n components figuring out what the odd barrel likes.
The velocity at the target ( using Shotmarker) always falls in the same range as well. One bbl may be 50 fps or so different but that is just the nature of different barrels and their round counts.
I shoot prone with a sling so perhaps in F-Class I would see something different.

I have my own reamers and all my barrels but one were done but the same 2 smiths most of them by the same one. In my many 6 ppc and 6brx barrels the loads only varied by a tenth or two in powder and a few tenths in seating. I never retuned except a bump or two with a tuner. I never cared about velocity except to have an honest figure for the inevitable question....how fast. Lol. BRX with 107SMK 2975 to 2990. 6PPC with 68 gr plus or minus a tad at 3400. Its the Indian not the arrow with my normal budget. Bob Green crafted me accurate rifles, the rest is up to me.

 

[Bob3700]

I have my own reamers and all my barrels but one were done but the same 2 smiths most of them by the same one. In my many 6 ppc and 6brx barrels the loads only varied by a tenth or two in powder and a few tenths in seating. I never retuned except a bump or two with a tuner. I never cared about velocity except to have an honest figure for the inevitable question....how fast. Lol. BRX with 107SMK 2975 to 2990. 6PPC with 68 gr plus or minus a tad at 3400. Its the Indian not the arrow with my normal budget. Bob Green crafted me accurate rifles, the rest is up to me.

Jeff,
I believe we are on the same page!

 

[Big Mc]

I am new to BR shooting and as my rifle is being built Im looking at different powder possibilities to push my Bart's Hammer 105 grn bullets out to 600 yards. Rifle is a 6MM BR Norma with 1:8 twist and a 28 inch barrel.

I live in northern Minnesota and would be competing most likely in the upper midwest. Gives a little info on temp requirements. I am also trying to obtain about 2900 fps.

Also new to the forum. Hope I posted this in the right place.

Thanks, Brew2

Varget and dont look back. Tommy Mc. 28 to 30 gr should do it.