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Ranger dV2 detail pics ...
Barnes dV2
Shown with a number
of options. This Class of rifle will become the flagship design.
Many colors, many degrees of trim, different features, calibers
.. but this frame.
It shoots wonderful.
Holds well. Balances excellent - just in front of the billet trigger
guard. New design two stage trigger. Luv it.
Ambidextrous
stock molding.
Early testing.
As I've outlined
before. What you see from me is "stone cold" shooting.
New rifle, untested, new ammo, what size ... what pressure ...
how many shots ... new trigger ... just tossed on a shop scope
a few minutes ago ... etc.
You can imagine
that, if I'd keep and shoot this rifle for a year ...
Mahogany will
"oxidize" and mellow into a beautiful burnt umber color.
It will take about a year. Note the color of the Yukon (10-03-06
daily post below).
Designed to make
good use of inexpensive single O buckshot ball - 50 grains.
Hornady makes a
good spherical product. This was two five shot groups (two fills)
overlaid. As the pressure rose, the ball went alittle higher and
right. The pattern was duplicated in the second overlaid group.
Meaning, you could easily compensate for it. Not bad - early testing
... cheap buckshot - 48 yards.
Full rifle version.
50" - 8.5 lbs.
Many things are
decided during testing. What slug? What size? What fill pressure?
How many shots in a string? Where's the psi plateau - how many
is it? Here I started to put it together. That's five shots ...
starting from the bottom, @ 66 yards.
That's a Bushnell
6 by 18X ... a pretty good sized scope. Mounted well - correct
eye relief. Just had some old 11mm by 1" rings I tossed on
there. Not the correct look for the gun ... but it worked for
field testing.
;?)
Trigger Guard
- dV2
Carved parts for the
dV2 prototype. That's brass and aluminum billet.
10-05-06
Ran some more tests on the dV2 action.
3,000 psi fill ... Barnes 77.75 grain
cast and shoot slug ... 9 shots ... 2,050 psi remains. Average
over the 9 shots of 775 fps . The Plateau of the fill was a five
shot string between 782 and 787 fps. 785 avg. is 106.41 fpe.
3,000 psi fill ... Barnes 101.5 grain
cast and shoot slug ... 10 shots ... 1,850 psi remains. Average
of the core five shot group was 705 fps ...which is 116.54 fpe.
Cast slugs for customers yesterday.
Completed a casting mold. Did other "stuff" required.
All tests performed with ammo
that "fits" the bore for proper accuracy.
You'll note an efficiency with air.
You have your proper 3,000 psi fill pressure. None of that "funny
stuff" I've tried to pull in the past. ;?)
You have a default slug which is "cast
and shoot". No sizing required. No press and sizing dies
required for these.
You have your screamin' fast 900+ fps.
You have a good 8-10 shots ... you
can choose just to shoot the sweet spot and still have a nice
tight five shot to shot spread.
You can see, from the residual psi
left after the test, you don't have to fill much to top off the
rifle. 2,250 psi remained after the shots in the test.
Right ... no coffee rings yet. ;?)
It's new.
You have an excellent power range for
an entire host of shooting. I Googled 22 caliber rimfire power
and copied some edited information there from Chuck Hawks. You
never know what feedback you are going to get ... but I think
I'm pretty safe in noting that the 22 rimfire is about the most
popular cartridge ever loaded. Note the power ranges of the cartridges'
fpe numbers for short, long, and long rifle. I'm demonstrating ONLY the fpe ratings of these extremely popular historic loads.
By Chuck Hawks
.22 Short
The standard velocity .22
short launches a 29 grain bullet at 1,045 fps with 70 ft. lbs. of energy from a 22" rifle barrel.
.22 Long
high velocity versions.
The latter launches a 29 grain copper plated lead bullet at a
velocity of 1,240 fps with 99
ft. lbs. of energy
at the muzzle of a 22" barrel.
.22 Long Rifle
The standard velocity
.22 Long Rifle takes a wax coated 40 grain RN lead bullet to a
muzzle velocity of 1,138 fps. The muzzle energy is 116 ft. lbs. in a standard 22" rifle test barrel.
I'll test the dV2 with other slugs as well. As
you know, heavier slugs generate higher fpe numbers.
My rational for bringing
in this rifle, at this fpe power range, follows:
1). It's fuel efficient
2). It's more than enough power for
80% of the things you'd ever do with an air rifle.
3). Integrally shrouded, it's very
quiet.
4). Single O buckshot is common, inexpensive,
and an efficient ammo.
5). Slugs are nicely cast in multiple
cavity molds.
6). The entire rifle can be made lighter
in weight
7). The rifle can be made smaller in
mass
8). With proper care and backers, the
rifle can be used on less ground than any more powerful rifle
requires.
9). It's an excellent compromise. It
achieves this desirable power bracket with a sub-sonic round.
(Super-sonic rounds cannot be shrouded).
10). Just because.
;?)
Gary