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YOU ARE VISITING THE PAGES OF THE U.K. N.R.A. HISTORIC ARMS RESOURCE CENTRE - MINIATURE CALIBRE RIFLES RESEARCH SITE - COPYRIGHT © 2009
(latterly known as the Mark I) ~ and its successor - the Mark II
See also the BSA Martini International Mk.III and the BSA Martini Internationals Mks. IV & V
Below, the falling block and the extractor / ejector lever can clearly be seen. The large slotted srew to the left side of the action is the locking screw for the dovetail on which the Parker-Hale PH25 rear-sight mounts, permitting fore and aft adjustment. The original issue PH25 sights were just 4 clicks to the minute adjustment. The later rifles were fitted with PH 25A through E rear-sights with 8-click to the minute adjustment. Many of the "Mark I" rifles were understandably retro-fitted, by their owners, with the finer adjustment sights. The knurling on the rear of the action, under the eyepiece, is a non-slip thumb contact area for the "thumb-up" hand hold position. The groove just visible on the centre-line, below the knurling, is the cut-out for the aperture through which a barrel cleaning rod can be passed. The groove is continued back into the comb on the raised cheek-piece of the butt-stock. The standard comb height was too high to otherwise permit a clear run for the rod.
BSA International Mk.II - LHS .............................................and underside forward of the action showing trigger adjustment screws in the trigger guard
Below: the fore-end removed. It is held by only one screw into the underside of the barrel, thus transferring the sling load directly to the barrel. This was altered on the subsequent Mark III rifle, which was effectively a fully-floating barrel arrangement.
Below: a two page contemporary advertisement for the Mk.II rifle.
We have located an original Mark II brochure of 1954, in slightly tatty condition, but rare enough to warrant adding to the page.
Where deemed necessary or worthwhile, the text of the brochure's pages has been repeated adjacent to the image.
The considerable difference between the barrels of the Light and Heavy models can be seen from the weights and dimensions table above, the latter at 6 lbs., and the former one-and-three-quarter pounds less. Both rifles had 6 groove barrels, the light one being 26" in length and the Heavy 29". The taper of the light barrel is greater, which is responsible for a considerable percentage of the weight difference. The overall lengths of the rifles are 44.4" for the Heavy and 41.4" for the Light model. There is an interesting mix of units used in the brochure, with weights in pounds and fractions, and dimensions in decimal inches.Although the latter have been generally used in engineering for years, this is a good indication of the dating being prior to decimalisation of many weights, measures and currency in 1971. That 21st.Century prosecutions of traders in the U.K., for using Imperial measures, have recently been quashed, we at least again feel able to make personal choices in such matters!
Below is the three-page centre-spread
The text on these three pages is as follows ............
"Produced by the Craftsmen of the Birmingham Small Arms Company Limited, England, the "Martini-International" Mk.II is the culminating achievement of almost a century of experience in the manufacture of High Grade Small Arms. Continued requests for improvements to meet the ever-present world demand for super accurate precision weapons have again encouraged B.S.A. designers to produce what we believe to be the finest match Rifle yet offered to satisfy the exacting requirements of the smallbore marksman.
"Continuous attention has been devoted to the further development of the "Martini-International" trigger, and after considerable painstaking research by our technicians an outstanding success has been achieved in the Mk. II mechanism — the ingenious design of which provides a trigger weight consistency within limits not previously considered possible.
The mechanism can be considered as two separate units
-- comprising trigger release and striker release.
The trigger engages a sear on the pivoted hammer 'B' which is lightly spring loaded and is prevented from rotating by this engagement. This unit is isolated from the striker release mechanism — thus permitting extremely light unit loading on the contact faces, which is the secret of the amazing consistency found in this trigger. This feature allows a very fine but absolutely safe engagement — coupled with virtually complete absence of wear on these vital surfaces. In the striker release mechanism sear 'C' engages tumbler 'D' which holds the firing pin in the cocked position. The engagement of the sear and tumbler is generous and is factory regulated. On squeezing the trigger the hammer 'B' is released and, rotating about its axis, strikes sear 'C' out of engagement with tumbler 'D', permitting the firing pin to travel forward. The lock-time of the whole sequence of movement is exceptionally fast. The trigger let-off weight is governed by a spring at 'T' which has external micro-adjustment. The trigger backlash adjustment is carried out through screw 'E' in a simiiar manner and means are provided for locking these adjusting screws.
RIGHT-HAND • LEFT-HAND
HEAVY & LIGHT MODELS
Designed in close co-operation with small-bore experts on both sides of the Atlantic the B.S.A. "Martini-International" Mk. II provides the complete comfort necessary for improved scores, for both:- right-hand and left-hand marksmen — an exclusive feature not available on contemporary Match Rifles."
We have tried below to separately approximately replicate the last page of the brochure with its lengthy prose.
Since its introduction - more: than seventy years ago, the Martini action has proved to be one of the finest mechanisms for building into super-grade Match Rifles.
The whole action is of unit construction and is easily removable from the robust body in which it is housed.
No pressings are employed. All components are fully machined from solid forgings and hand-fitted in keeping with the established traditions of the English gunmakers' art.
The under-lever loading principle of the Martini action is conducive to ease and speed of operation enabling the marksman to re-load without moving either elbow from the ground or the rifle from the shoulder.
In addition, the inherent shortness of the action facilitates correct location of centre of gravity in the weapon as a whole, which gives perfect balance - weight distribution - and consequent steadiness of aim.
The whole action is of unit construction and is removable from the robust body in which it is housed.
The "Power" ejection system has been re-designed to give full support to the cartridge in the chamber. No matter at what speed the cocking lever is operated ejection is faultlessly consistent.
the most important unit in the quest for supreme accuracy, the B.S.A. "International"
barrel is manufactured only from specially selected highest grade Jessop steel
and infinite care is exercised during each production stage.
After precision fine boring and rifling each barrel is individually hand-lapped. This produces the internal finish so vital to the uniform accuracy which every marksman seeks to achieve.
The Manufacturing sequence is subject to the most stringent inspection conditions, and internal bore tolerance is held within .0005" and parallelism within .0002".
The rifle is subjected to stringent accuracy tests utilizing special "match" ammunition. Shot from a machine rest the B'S.A. "Martini-International" Mk II must achieve three consecutive ten-shot groups cutting a 1" circle at 100 yards.
The P.H.25B. Aperture rearsight and P.H.1 Tunnel foresight are specially manufactured
by Parker-Hale Ltd. for the B.S.A. "International" Mk II.
The dovetail sight bar on the action body provides the rearsight with 2r of tor for eye relief. The eye piece incor porates a six hole
attachment wail aperture variations from .080 to .030".
The foresight is supplied with six interchangeable elements contained in a box which can be fitted in a position to suit the individual. Standard telescope blocks are mounted on the barrel and the sight line it common to both iron and telescopic sights.
The "custom" woodwork of "Freeland" pattern is a feature
which special attention has been devoted. The matched butt and
fore-end made from French Walnut have been specially styled to meet the demands of the most discriminating shooter.
The butt, with its comfortable cheek piece, has the right depth of comb to suit both iron and telescopic sights, and the broad beavertail fore-end with adjustable handstop is ideal for "hold". Checkering* on butt and fore-end extra.
* In the U.K., this would be spelt as "chequering", which indicates the hoped for main market for the brochure, if not the rifle.
Supplied with each new rifle, in addition to the maintenance pamphlet ................................................
............................(do you by any chance have one of those available for copying here?) ......................................
............................................................................. was this folding card relating to the Parker-Hale sights supplied as standard.
The later Mk.III rifle had an improved Model 25 rearsight with one-eighth minute clicks
instead of the one-quarter minute clicks of the Mk.I and Mk.II rifles' sights shown on this page.
Below is an exploded view of the Mk.II rifle (click to view in greater detail), and below that the official sectioned drawing with parts identification
Below, the drawing of the Mk.II International as illustrated in the contemporary BSA Spare Parts List
Click on the image to view the original sized drawing
and the associated key tables showing the parts and their contemporary pricing in Pounds Sterling ( with shillings and pence as prior to 1971 decimalisation).
Quite apart from ongoing use, in original form, in historic competition,
it can be seen below that a Martini International Mk.II's day is never done!
The above rifle has recently been modified for benchrest use.....................
....................... visit WWW.BENCHREST22.ORG
Or see the "bull-barrelled" Mk.V shown on the page for the Internationals Mks IV & V.
See also the BSA Martini International Mk.III