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fleXi-bloc Inletting Instructions - Barnard 'P' action
Click here to purchase - Determine the exact lengthwise location of the bedding block on the stock and mark a line on the stock at the front of the block.
- If possible, set up the stock on a vertical milling machine. Zero the X axis on the marked line, and centre zero the Y axis on the stock centre line.
- Drill three 15.5 mm (.610') diameter holes through at:
No 1 : 32 mm (1.260')
No 2 : 72 mm (2.835')
No 3 : 125 mm (4.921')
from the rear of the line previously marked.
- Using a 10 mm (3/8') dia. end cutter, mill the upper part of the recess for the bedding block to a width of 36 mm (1.418'), a length of 165 mm (6.496') and a depth of 10 mm (.394').
- Using the same cutter, mill the bottom recess to same length, a width of 26 mm (1.024') and a depth of 29 mm (1.142').
|  | - Mill the trigger slot in the stock to match the trigger clearance and slot in the bedding block.
- Make sure the block is down enough to allow correct height position of the trigger finger. If necessary, deepen the two above mentioned cuts of the necessary value.
- Check that the block enters freely in the cut. It is desirable to have the cut made 0.2 to 0.4mm (.008' to .016') oversize, in width and length to ensure a good glue interface layer.
- At this stage, ensure that the cut is well lined with the barrel channel and barrel is free in its channel.
- Ensure that the three silent blocs are well seated and glue in the bores the three exclusion tubes (caps), using a fast bonding glue (cyanoacryllate or equivalent). Make sure they bear evenly against the external sleeve of the Silent Blocs.
- Prepare the block for gluing by degreasing it with acetone or other degreasing solvent.
- Protect the inside vee of the Block with thick packaging tape, Sellotape or equivalent to prevent bonding compound to stick on the Vee surface. Place it in strips lengthwise and cut the ends with a sharp blade.
- Close the end of the exclusion tubes with a wad of paper or plastic bung and finally wipe the surface to be glued with acetone to remove any finger prints.
- Protect carefully with thick tape the bottom and side surface of the stock, leaving the three 15.5mm holes free.
- Apply a coat of adhesive inside the recess and on sides of the block, ensuring it is evenly applied and of just sufficient volume and thickness to fill all the gaps.
- When the block is settled down in the stock, peel out the tapes and wipe away excess adhesive using a cleaning cloth damp with acetone . Wipe out any excess adhesive from the trigger recess and push out the wads or bungs away from the exclusion tubes.
- Allow the glue to cure completely.
- Mark the ejection port recess on the stock and using a 15 -16 mm cutter, remove stock material so that it aligns with the port in the action.
- The bolt handle recess can be cut with a 12 mm cutter by fitting the stock at a corresponding angle. Allow 1 mm (.040') clearance under the handle for the radius to center match with the diameter of the handle.
- Cut and file carefully the exclusion tubes flush to the bottom of the stock.
- Notes
- -It is possible for the above recess cutting work done using hand tools but be prepared to a lot of work to get it done correctly.
- The Neoprene fleXi-bloc and elastomer strips have an indefinite life and the load and stress placed on them in this application are absolutely minimal in regard to their capacities. Therefore, we know that the trapping of the silent blocs in the stock is not a problem as they would never have to be replaced.
- When finishing the stock, place wads or paper plugs in the exclusion tubes and in the silent bloc sleeves to prevent dust and shavings getting into the cavities.
- -Tension on the action bedding screws when fitting the action is not critical. Torque tension of the screws (with the screw head bearing surface slightly oiled) is best achieved at a torque of 5 to 6 Newton/metre (3.7 to 4.4 lbs/ft), or up to the flexion of a long 5 mm Allen key. The internal stainless steel bushings controls the right axial tension of the silent blocs and the pressure of the action on the longitudinal strips.
- Care and Maintenance
- Simply wipe dry the system if it gets wet, and lightly oil the stainless bushes and screws bearing surfaces in order to ease removal.
R.G.C 14/06/2009 ↑ Top of Page ↑
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