For pure accuracy in windless conditions and only going on my experience with a BRA that has 800rnds on it they are neck and neck. I shot the 6br at last years 500m Fly States and the BRA this year in fairly rough conditions and I believe the BRA has an edge in the rougher conditions, I shot higher scores in both classes with the BRA than with BR. Just my experience so far.
Favorite 6mm BR Loads
- Thread starter Forum Boss
- Start date
SteveOak
Gold $$ Contributor
I'm posting it just in case it might come in handy for someone. I searched through this thread and did not find any load data for a 115gr bullet in a 6BR case.
Yes, I know, and I agree that a 115gr bullet is heavy for a 6BR case. My guideline is that the bullet should weigh no more than 2 to 3X, maybe 3.5X the weight of the powder charge. I have a special application that calls for a heavier bullet.
Lapua 6mmBR Norma case, neck skimmed to .013", CCI 450 primer, 115gr, RBT DTAC with HBN. The barrel had been treated with HBN.
29.2gr VV N150 yielded a MV of 2,708, ES 24, SD 9.
Again, it is a special application. I started at 30.0gr and was a 2,750ish, faster than I wanted it to be so I decreased the load until I got close to the speed I wanted, 2,700 fps.
I also tried some Berger 115gr Target bullets with 30gr of Varget. I did not like the recoil impulse so I switched to VV N150. The Berger had to be seated very far into the case which resulted in more powder compression/crush than I like.
Yes, I know, and I agree that a 115gr bullet is heavy for a 6BR case. My guideline is that the bullet should weigh no more than 2 to 3X, maybe 3.5X the weight of the powder charge. I have a special application that calls for a heavier bullet.
Lapua 6mmBR Norma case, neck skimmed to .013", CCI 450 primer, 115gr, RBT DTAC with HBN. The barrel had been treated with HBN.
29.2gr VV N150 yielded a MV of 2,708, ES 24, SD 9.
Again, it is a special application. I started at 30.0gr and was a 2,750ish, faster than I wanted it to be so I decreased the load until I got close to the speed I wanted, 2,700 fps.
I also tried some Berger 115gr Target bullets with 30gr of Varget. I did not like the recoil impulse so I switched to VV N150. The Berger had to be seated very far into the case which resulted in more powder compression/crush than I like.
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JohnMill
Gold $$ Contributor
The suspence is killin' me! What kinda group or score did it shoot. Spec App? What? Godzilla Killa? Just funnin' ya. But I am curious.
John
JohnMill
Gold $$ Contributor
Hey Steve,
Are you never going to tell us what your special application load is? Please.
John
Does anyone have any 6BR load data using 110smk?
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SteveOak
Gold $$ Contributor
I went to the range today with a load of 29.2gr of VV N150 and the Berger 115gr Target VLD.
Ave MV 2,689, H 2,698, L 2,678
ES 20
SD 9.3
This is for 5 rounds, Lapua 6mmBR Norma cases and CCI 450 primers, 23" Kreiger 8 twist barrel, HBN coated bullets and HBN treated barrel.
Ave MV 2,689, H 2,698, L 2,678
ES 20
SD 9.3
This is for 5 rounds, Lapua 6mmBR Norma cases and CCI 450 primers, 23" Kreiger 8 twist barrel, HBN coated bullets and HBN treated barrel.
26" Hawk Hill 7.5tw Marksman contour
Lapua Brass
29.3gr H4895
105 Hybrid
2860fps
ES 7-11
.015 jump
Lapua Brass
29.3gr H4895
105 Hybrid
2860fps
ES 7-11
.015 jump
I've been testing with the 105 rdf bullets lately. They seem to seat a little more consistently than the 107 smk s. The 105 rdf bullets seem to shoot well with 30.2 grains of varget seated 14 thou off the lands in my particular gun. I have been pleasantly surprised with them. I have been thinking of sending 500 bullets to David tubb and having his people coat them and trying them that way too.
I went through 500 105 RDF's with no luck getting them to shoot well. Guess my gun just doesn't like them. But 30.2 grs Varget behind a Hornaday 105BTHP is a great, inexpensive sport shooting combination in my experience. As always, YMMV.
FWIW: 28 inch X-caliber barrel, Savage action with target trigger, Bobby Hart stock, Sightron III 8-32X56, Rock BR rest, Protector rear rest, 65 y/o eyes (crap).
FWIW: 28 inch X-caliber barrel, Savage action with target trigger, Bobby Hart stock, Sightron III 8-32X56, Rock BR rest, Protector rear rest, 65 y/o eyes (crap).
CCI BR SRP
For myself they burn clean and don't pierce, I have since tested primers side by side against my base load and found that 450 mag primers grouped a little tighter on that particular day.
As I read these posts page after page I realize it’s probably easier to pick the bullet you want to run and sift through this post to see where guys are starting. It seems as though just about every bullet works well with the right charge pushing it.
Sounds about right "
Haven’t done any kind of load development yet but the used arc nucleus with criterion 1x8 twist 28” barreled action I purchased shot this 10 shot at 200 yards from a bipod. New DTAC 115 coated 29 grains of varget cci450 primer out of lapua brass. I loaded 10 right around .020 off the lands and took them out with a couple other generic loads to see how it would do. Speed was 2850ish. I’m not very confident with my chrony though. It always gives me trouble.
Attachments
DennisH
Life Time NRA member
Distance?
I'm guessing 200m and 300m if you look at the files.
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