THE BSA MARTINI INTERNATIONAL .22RF TARGET RIFLE

BSA Martini International (First mark) - action disassembled.

The top left component is a cut-off chamber section of the barrel,

showing the thread which locks it into the front of the Mk.1 or Mk.II receiver body.

Removal of the barrel may well not afford access to the interior, regardless of the position of the falling block.

 

Note that the hammer arrangement is different from the Mk.II.

The right-angled component above the v-spring does not have the separate hammer lever

that bears up under the falling block of the Mk.II. Otherwise all is very similar.

 

 

 

A sectional drawing of the MK.II from the RHS.

 

 

 

Below left: action closed, lever fully aft.

 

Right: action partly open, lever forward to point where falling block meets top of hammer lever.

This is the point at which additional forward pressure on the lever is usually required, to complete cocking - with a definite click.

 

If the hammer lever cannot depress for some reason, then further forward movement of the under-lever is not possible.

If resistance is felt here, and nothing is broken or trapped by an extraneeous article,

it may be worth trying a tap on the top of the block with a brass drift and light hammer to see if it will drop further.

A cramp could also be tried to apply moderate down pressure, but something may give if too much is used;

although it may otherwise be impossible to remove the action, which has to be fully cocked before removal is possible.

 

......

 

This is the parts drawing for the ISU model, but the components are more or less the same as the Mk.II.

The hammer is part no.24

 

 

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).