6mm br or 284 win

6mm br or 284 win

  • Total voters
    59
C

Canadian Bushman

Well-Known Member
Joined
Jan 24, 2012
Messages
1,827
Location
Houston, Texas
Two calibers ive been eyeballing for a while and with my new 308 build finishing up i have an extra 308 S/A that im debating using for one of the above. It will mostly be used for punching paper and steel and some short to mid range hunting.
 
I have a 6 br and it will complement your .308 perfectly in your line up. $26/100 for bullets and 30 gr on powder in Lapua brass. Targets to 1000. Easily obtained accurate loads. No recoil. What's not to like?

Not to mention a great small caliber hunting rifle for deer and antelope, coyotes, wolves, prairie dogs, Rock chucks, etc

Jeff
 
This is a tuffy for me bc I own both, haa!. But for a paper puncher and midrange steel specifically, Id go the 6br route. Cheap to reload for, mild recoil, top end accuracy, long barrel life and idiot proof to load tune. You should routinely be shooting .30 moa or better at 100yds with a decent load all day long. Makes a nice varmint round too. The gun always brings a smile to my face. Might need some mag modifications to have it feed reliably however. Thusly mine's a single shot.

On the other hand my .284's sole purpose is to fill my desire for a high bc, good barrel life havin, LR fun gun niche. Its fire breathing overkill for shortrange paper and steel and thats why I built it for LR steel plates and other related mischief. Its also built on a stiller single action so I can seat the 162-180s with no feeding or COAL issues.
 
Last edited:
Im kinda leaning toward the 6br. Easy to shoot, accurate and barrel life are gonna be three requirements for this rifle, and i think it would work a little better than a 284 win in a S/A

I am really drawn to the B.C. Of 7mm bullets for some reason, and im never against having good energy down range.

I like the idea of a. 6.5-284 but i think it chews through barrels too fast for me. I like to shoot a lot.
 
the little 6BR is just a great little round. It's probably the most efficient round out there, and is also one of the most accurate rounds out of the box. With the 105/107 grain class of bullets, there are a lot of folks out there getting close to 2900fps. Now last time I looked that is pretty close to what the big cases are doing. I am pretty much maxed out at 3050fps with the 6/250 improved case (it will do 3100fps with a very hot load), and that's with about 50% less powder. Still the comparison is with the .284 case. A good size for the 7mm bore without a doubt. But bullets with similar velocities and similar B/C's have similar trajectories. The 107 Sierra has a B/C of about .55 or maybe .53 (I'm getting old and memory is shorter). I can push that bullet to 2850fps with a real good stiff load. The .284 shooting the 154 grain bullet will do similar velocities with a similar B/C. But the 162 grain Amax is another story with a .62 B/C. It'll hit the 2750fps mark with a heavy load of 4831, and should shoot a little flatter. But you'll also know it everytime you pull the trigger. Add to this, that the average Joe is wanting to use a short action Remington (known to be somewhat shorter than the others out there), and you bring to light another issue that few discover till it's too late. The .284 round shows 2.995" over all length. Kinda makes it look better (on paper) with a standard length action. The Savage short action is a little longer, and that would help. Still I think a single shot action is the ticket here. But with the 6BR you have a gazillion actions to choose from.
gary
 
Canadian Bushman said:
Can the 6br push 115 gn bullets fast enough to make good use of them or is it better to stay around 105gn. I like heavy bullets.
Click to expand...

I wish I could say and I will watch for some first hand experience on that. I started with the 105's and 107's in an 8 twist 4 grove Krieger. When one of the first loads put 5 into a pencil eraser group at 180 yards I quit and never looked back. I am not joking when I tell you I would call a head shot on a mouse with this rifle at 100 yards. The amount of head shots on gophers out to 200 is way more than a few.

30 gr of RL 15 gets me 2830 fps from a 28" with the 107's. But I will be switching from this powder when I run out. Too temp sensitive for me. On a warm day past 500 I tend to shoot over very small stuff.

Jeff
 
Broz said:
I wish I could say and I will watch for some first hand experience on that. I started with the 105's and 107's in an 8 twist 4 grove Krieger. When one of the first loads put 5 into a pencil eraser group at 180 yards I quit and never looked back. I am not joking when I tell you I would call a head shot on a mouse with this rifle at 100 yards. The amount of head shots on gophers out to 200 is way more than a few.

30 gr of RL 15 gets me 2830 fps from a 28" with the 107's. But I will be switching from this powder when I run out. Too temp sensitive for me. On a warm day past 500 I tend to shoot over very small stuff.

Jeff
Click to expand...

I hear so many people say they just dumped some powder in the case and it shot a bughole. I cant help but be intrigued.
My first impression is that a tight twist with a 115gn bullet might be just a bit too slow, so it seems running the 105 class with a 1:8 twist might be a safe bet. Im in no hurry to get on this project so i will have lots of time for research.
What powder are you looking at to replace the rl15?
 
Varget is probably one of the least temp sensitive powders that ive played with. If i knew more about reloading when i was using it i may have never tried anything else.
 
Warning! This thread is more than 11 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Similar threads

M
243AI or 6mm-284?
2
Replies
19
Views
9K
uncleB
U
W
.243 ai or 6mm-284
2
Replies
17
Views
8K
BEEMAN
B
P
6mm/284
Replies
7
Views
5K
Outlaw6.0
Outlaw6.0
L
The 6mm BR
Replies
5
Views
3K
goodgrouper
G
A
22-284, 6mm-284, 6.5-284
2
Replies
18
Views
6K
Bob the nailer
Bob the nailer

Recent Posts

Top