Sniper Country Duty Roster collective wisdom
Reloading - Remington Bench-rest brass:
A few years ago I got my hands on some Remington .308
Bench Rest brass but I never used it yet. I'm not sure why but they use
small primers. Has anyone out there used this brass before? Any hints about
this stuff that might save me time at the loading bench will be greatly
appreciated.
Kodiak <rvl@inil.com>
USA - Saturday, January 02, 1999 at 16:01:30 (EST)
Kodiak,
I have used a lot of Rem.BR brass and it's great stuff!!! The only
problem with it is that the small primer will sometimes not ignite the
powder well when it's cold. The other thing is the brass has a larger intrenal
volume compared to other brass and there fore the velocity suffers. If
you use the same load and your getting 2600fps you will drop to around
2400fps. with the same load in BR brass. When I went to the BR brass in
my 308VS it droped my groups a .1 to .2 and I also didn't have those "flyers"
that you can't figue out where they came from. The other thing you will
need to do is get a Redding Bushing die because the brass is so thin the
regular die will not size the neck sometimes. As I remember its only .009
to .010 thick it will nearly fit a tight neck rifle. I used 46grs of Varget
with the 168s and was then able to reach 2600+fps and the accuracy was
as good as my 4895 load only a lot faster. Hope this helps if you need
any nore info let me know. I wish they still made it!!!
Pat <mrbullet@hotmail.com>
USA - Saturday, January 02, 1999 at 18:03:46 (EST)
Kodiak... The Remington .308 brass ".308 Bench Rest brass" was never
intended to be shot in a .308... back in the late 70's Remington released
the model XP-100 pistol in 7/mmBR Rem, and 6/mm BR Rem...
But for some reason didn't release ammo. They chose to sell a special
brass called .308 "BR" to be used to form these cartridges. It was
Remingtons effort to compete with the then overwhelming group of "PPC"
cartridges.
The entent was that the .308 BR brass was to be used to make the
cases for the new line of Rem "BR" line of guns (I'm sure that a lawer
had something to do with it). After 3 or 4 years, Remington decided to
come out with the completed cases...
The .308 "BR" brass was never entended to be shot in a .308...
... makes a lot of sense, doesn't it!!!
Pablito
Paqul "Pablito" Coburn <condor@mags.net>
USA - Sunday, January 03, 1999 at 00:18:03 (EST)
Kodiac,
The idea behind the small primers (in Remington 308 BR) is that it
allows the powder to burn more evenly, But, ignition problems can happen.
Stay Safe
Depity Dave <dprolls@access.mountain.net>
Freezing my A__ off in , Blistering Cold West Virginia USA - Sunday,
January 03, 1999 at 12:06:36 (EST)
Bill Wylde,
I have some .308 BR brass which has had the primer pockets "uniformed"
with the Whitetail tool. Occasionally I'm getting missfires, and even a
second strike won't set it off. Dismantling the cartridge shows an unfired
primer.
It always seemed to me the tool removes too much material. I usually
set firing pin protrusion to about .052 to .055" in the Rem bolt rifles.
Is this enough? What are your thoughts on the matter? Do you use the same
depth for both small and large primers?
I know that I'm not going to use it anymore if my protrusion depth
is in the normal range.
Ron N.
Ron N. <rcn8@accnorwalk.com>
USA - Monday, January 11, 1999 at 20:18:52 (EST)
Ron N.
Are the missfired primers flush with the back of the case head,
or recessed 10-20 thou..., and are the primer indents on the missfires
normal, or shallow compared to the good rounds that fired?
If the primers are recessed more than about 5 thou, and the primer
indents are shallow, the pockets are too deep!
If the primers are flush, and the indents are shallow, the cases
have the sholders back too far... too much head space on the cases, not
the rifle! Put two or three layers of scotch tape on the case head and
close the bolt, you should feel more resitance if the cases are ok for
headspace.
Also check the primers... I have about a dozen "fired" missfired
primers on a shelf that had no pellets in them.
Pablito
Pablito <condor@mags.net>
USA - Monday, January 11, 1999 at 20:51:27 (EST)
Pablito,
This particular primer is recessed .008" and the indent is shallow.
It just happens occasionally and so I'm probably on the borderline of ignition.
But still want to know what is acceptable for protrusion. It could be that
the protrusion is too shallow and this case is acceptable; don't know for
certain. I know someone else who had misfires at a 600 yd match after he
"uniformed" the pockets with the Whitetail tool.
The chamber is a .308 Obermeyer, GO plus .001". Cases are resized
to the minimum amount needed for chambering.
Ron N.
Ron N. <rcn8@accnorwalk.com>
USA - Monday, January 11, 1999 at 23:11:28 (EST)
Ron N.,
It is doubtful that the uniforming tool is the culprit. It could
be off dimension, but doubtful.
You state that you "set" firing pin protrusion. Are you by any chance
playing with a homegrown titanium FP? I know these can be a nightmare.
Regardless of the problem, the .055 setting should get the job done,
but I'm probably a poor one to ask. The only ignition problems I've experienced
were with fast actions and "issue" ammunition with hard primers.
It was mentioned in another post that the cases might be a bit short.
This could be the problem or it could be that something is slowing
the striker. You could also have some bad primers, but this doesn't happen
often either.
Have you made any modifications to the Remington bolt? If so, you
might try reversing these mods.
Bill Wylde <k9wxr@rr1.net>
THAWING - SE, IL USA - Tuesday, January 12, 1999 at 09:41:17 (EST)
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