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Twenty Caliber .222 !
I found the article below very interesting. It was written by G.R. Douglas of Douglas Barrels, Inc. in January of 1957
ADVANCE DATA ON THE NEW “TWO HUNDRED” AN EXCLUSIVE DEVELOPMENT
BY G. R. DOUGLAS.
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The new development of a “sub” caliber” such as my “two hundred”
has been brought out after much thought on the subject, and after
many requests and interest shown in a sub caliber. The new .200
caliber was primarily intended as a varmint cartridge, but early
results indicate that it might well have fine bench rest possibilities.
In the beginning also it was thought that the little 222
case might be the only one that we would use, as it was thought
that in this little case most efficient results might be obtained.
Indeed this is true, but since early results have been so promising
we will at an early date, offer two additional cases, the .219 Don
Form, and the .250 Savage case, all necked for the little .204”
bullet. At this time, we only have the 222 case necked to .200
ready. This we call the .200-222.
An additional reason for the .200 is the fact that it is possible
to use bullets up to 47 grains wt. (in .700” length jackets)
which bullets have a fine sectional density, approximately equal to
a 56 grain bullet in the regular .224 size, by comparison. Bullets
currently being made by us, in hand dies, are of 45 grains wt.
only at this time. We are arranging with commercial interests, who
no doubt, will offer bullets soon, in this size. The 45 grain bullet
has a sectional density, approximately equal to a 53 grain bullet in
.224 size. It can readily be seen, therefore, that with bullets
in .204” size, and of but 45 grains wt., more favorable results
might be expected over 50 grain bullets in the regular .224 size.
Early velocity tests bear out this belief. Velocity tests, conducted
For us, by the Shenandoah Gun Shop, Berryville, Va., on their
very fine and accurate chronograph, show that average velocities
obtained in the .200-222 with 45 grain bullets, and various powder
charges, run approximately 200 foot seconds FASTER than a 50 grain
bullet in the regular .222 at the same, or safe pressure levels.
From this, then, it can be readily be seen that the new caliber might
well be a BETTER varmint cartridge, than the regular .222.
In the attached sheet, showing the loading data that we have used
to date, velocities are shown obtained with various powder charges
all with the 45 grain bullet, and velocities taken at 10 ft. from
the muzzle, as obtained from a 24 inch barrel (note barrel lgth)
such as you would use in the field. Velocities, therefore, are
really representative of what may be obtained, from a rifle that you
would actually use, and not from an excessively long barrel, as is
sometimes done, to get impressive velocities. All charges were
weighed, as always should be done, particularly when working with
test loads, and maximum charges. Also it should be noted that a
maximum SAFE charge in one rifle might well be a dangerous charge
in another rifle, so when devolping a load for your own rifle, in
any caliber, always use PUBLISHED figures as a guide toward
developing your own MAXIMUM SAFE loads in YOUR rifle. Do NOT use
published figures on loads in general, as applying to all, or your
rifle, until you have proved them safe to use in YOUR rifle.
At the moment, we have barrels, blanks, finished barrels, and bbls.
can be fit to bolt actions (suitable ones, that is) for this new
.200-222 ONLY, just now, and we also have reloading dies, made for
us by R. C. B. S., hand made 45 grain bullets, lead wire, and cases.
ADVANCE DATA ON THE NEW “TWO HUNDRED”
Page 2.
We can fit barrels to any of the bolt actions that normally
use the regular 222 case, either as single shots, or as repeaters.
The bullet jackets that we use, and have for sale are of Speer make,
and we have them in .675” and .700” lengths. Barrel prices will
be the same as for other calibers, and as per the price list
you no doubt already have. Bullets are priced at $4.00 per 100,
dies at $13.50 per set, formed cases at $10.00 per 100, and
jackets at $10.00 per 1000. A discount of 15% will be granted
to legitimate gunsmiths, on these components only. Barrel prices
remain the same, with same discounts. (Same as our established
prices and discounts, that is)
VITAL STATISTICS ON THE NEW “TWO HUNDRED”.
Bore of barrel, nominal, .200”. Groove of barrel, nominal, .204”
rifling, 8 narrow lands, 8 wide grooves, rifling twist rate used,
12 inch, with 10, 12, and 14” available. (12” was used in the
test rifle, the results of which are given here) Barrels, all
triple heat treated chrome-moly, with a Rockwell hardness of
26 to 30, and with a tensile strength of 125, 000 to 140, 000 lbs.
sq. inch. All barrels ULTRARIFLED* (T. M. Reg Pat. Pend.)
ADVANCED LOADING DATA,
45 grain bullet, .2037” diam.
Powder Grs. Wt. Vel. Powder Gr. Wt. Vel.
3031 21 3146 4320 23 3107
3031 22 3312 4320 24 3286
3031 23 3432 4320 24.9 3388 Max.
3031 24 3582 Max. 4320 25.9 3569 Blew primer.
Other powders used were 4198, consider 20 grains as max. 4064 was
used, 24.5 grains being a full case, giving 3432 fs. 4198 did
fairly well, showing best accuracy, but pressure sensitive. 19.3
grains this powder (4198) gave 3310 fs, 20.0 grains giving 3410 fs.
Accuracy was very fine overall, for a rifle of but 8 lbs. wt.
Scope used was a Lyman Super, 30x testing as Bench Rest. Accuracy
was best with 4198 powder, next 3031, and then followed
with 4320. Total AVERAGE accuracy, for all groups, at 100 yds,
5 shots per group, was an almost unbelievable .526” (65 shots)
SPECIFIC DATA ON THE TEST RIFLE.
Rifle was factory Remington 722, stock, action, trigger; barrel
was my No. 4, cut to 24”, without rear sight ring. Grade was
premium; bore was .1998”, groove, .2043”; 12” rifling twist;
8 narrow lands, 8 wide grooves, ULTRARIFLED. Total wt. of rifle,
8 lbs. With scope, even 10 lbs.
Again, let me caution you, in any reloading. Work up to maximum
charges carefully, weighing and check all powder, and procedures.
See my February ad in the American Rifleman for our
special offer, toward rebarrelling your 722 for this promising new
sub caliber.
G. R. Douglas 1-22-57