American Rifleman - June/July 2021 - 60

27 NOSLER

by first running virgin 27 Nosler cases through an RCBS
full-length resizing die and then used a Lyman E-ZEE Prime
tool to seat Federal GM215M primers. Powder charges were
dispensed with an RCBS Matchmaster, and bullets were
seated with an RCBS Gold Medal die with sliding case guide
and floating seating stem. Pressure-tested data came from
Nosler, Hodgdon and VihtaVuori.
Prior to working with the Model 48 Long-Range Carbon,
I wondered if an interior magazine length of 3.425 " would
rule out the use of some extremely long, high-ballisticcoefficient bullets available from other companies. That
did not turn out to be true. For trouble-free feeding of
any bolt-action rifle, I prefer to keep maximum Cartridge
Overall Length 0.020 " shorter than interior magazine
length, and that would be 3.405 " for the Model 48. The
Berger 170-gr. Elite Hunter was most accurate when seated
into the case for 0.045 " of free travel prior to rifling
engagement during firing. Overall cartridge length was
3.388 " . The Cutting Edge 140-gr. MTH carved its smallest groups with 0.035 " of jump, and that put cartridge
length for it at 3.402 " . For old-school hunters like myself, I
included the grand old Nosler 160-gr. Partition in my tests,
and there is more than enough room in the magazine for
it. Years ago, I took a very good Alaska/Yukon moose with
that bullet loaded in the .270 Win., and it would also be an
excellent choice for the 27 Nosler.
I seldom notice recoil when shooting a rifle at game,
but a muzzle brake is nice to have when accuracy testing and developing handloads. The thread protector on
the Model 48 weighs 0.5 oz., and replacing it with an
extremely effective, three-port titanium brake available from Nosler weighing only 2.2 ozs. added very little
weight to the rifle. Due the slight weight difference
between the two, along with the stiffness of the PROOF
Research barrel, once the rifle was sighted in the thread
protector and the brake could be interchanged with no
effect on zero. According to my internal " kickometer, "
recoil with the brake is about the same as for an 8-lb.
rifle in .270 Win. without a brake.
Nosler guarantees minute-of-angle accuracy for threeshot groups with the company's ammunition, and the
150-gr. AccuBond load came close to living up to its
billing. Among my handloads, Reloder 25 and the Swift
130-gr. Scirocco II won the velocity race, while the combination of VihtaVouri N570 and Berger 170-gr. Elite Hunter
took top accuracy honors by consistently shooting inside
an inch at 100 yds.
Extremely important on a big-game rifle, all cartridges
fed smoothly from the magazine. The Sako-style extractor
plucked fired cases from a dirty chamber without missing
a beat, and the spring-loaded plunger ejector propelled
spent cases through the port smoothly and with great
authority. Single-loading was equally smooth. Should you
shoot the magazine empty and there is no time to reload,
simply toss a cartridge through the ejection port, slam
the bolt home and press the trigger.
Many hunters of my age find it difficult to think of

60

JUNE/JULY 2021

Trophy Grade ammunition is loaded by Nosler with 150-gr.
AccuBond and 165-gr. AccuBond Long Range bullets at respective
muzzle velocities of 3250 f.p.s. and 3158 f.p.s.

a cartridge loaded with a .277 " bullet without the name
Jack O'Connor coming to mind. For those who do not
know, O'Connor was a prolific firearm writer who bought
a rifle in .270 Win. when the cartridge was introduced in
the Winchester Model 54 in 1925, and during the following half century or so used the .270 to take big game
in various parts of the world. He hunted with and wrote
about other cartridges, including the 7x57 mm Mauser,
.30-'06 Sprg. and .375 Holland & Holland Magnum, but it
took very little reading between the lines to see that the
.270 was his favorite.
O'Connor passed away in 1978, but if he were still
with us today would he abandon his beloved custom
rifles in .270 Win. in favor of the 27 Nosler? I think not.
The .270 Wby. Mag. was introduced when he was still
climbing sheep mountains, and if he ever hunted with it,
I don't recall reading about it.
The 27 Nosler is an impressive cartridge, but I don't
believe anyone reading this will live long enough to see it
entirely replace the .270 Win. in the hands of America's
hunters. If anything, the grand old cartridge will receive
much needed attention in comparisons such as I have made
in this report. Rather than illustrating that the original
American .270 is over-the-hill, occasional moments in the
limelight along with quick-twist barrels and new bullets may
show it to be even better than Jack O'Connor claimed.
WARNING: Technical data and information contained herein are intended to
provide information based upon the limited experience of individuals under
specific conditions and circumstances. They do not detail the comprehensive
training, procedures, techniques and safety precautions that are absolutely
necessary to properly carry on similar activity. READ THE NOTICE AND DISCLAIMER ON THE CONTENTS PAGE OF THIS MAGAZINE. ALWAYS CONSULT
COMPREHENSIVE REFERENCE MANUALS AND BULLETINS OF PROPER
TRAINING REQUIREMENTS, PROCEDURES, TECHNIQUES AND SAFETY
PRECAUTIONS BEFORE ATTEMPTING ANY SIMILAR ACTIVITIES.
AMERICAN RIFLEMAN



American Rifleman - June/July 2021

Table of Contents for the Digital Edition of American Rifleman - June/July 2021

Contents
American Rifleman - June/July 2021 - Cover1
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American Rifleman - June/July 2021 - 1
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