JM Benchrest - Exotic Wood

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#1 JM Benchrest - Exotic Wood

Wed Aug 09, 2017 12:47 pm



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#2 Re: JM Benchrest - Exotic Wood

Wed Aug 09, 2017 12:51 pm

The Main Man ...who replied via email in reference to post #1 - https://www.pimpmyairgun.com/viewtopic.php?f=162&t=2098

"Below are a few random pics of how its done on my large CNC. This was taken when I did a batch of 8 or 10 BR stocks. Its basically a 3 sided approach where you cut the right side flip, it over accurately and cut the left side, then lastly top inletting. On a FT type stock you would do 4 sides as the bottom also gets cut for rail etc. It will look sligthly different to the pic you sent but it only because the block of wood is not rectangular like theirs otherwise it would have looked the same.

Process is not as quick as you might think. On my machine it takes about 6 hours in total for a complete stock depending on how fine you set the finishing cuts. Coarser finish step over = quicker but a bit more sanding. Finer takes longer but diminishing returns."


See here: https://www.pimpmyairgun.com/viewtopic.php?f=88&t=2075
Attachments
001.jpg
Left Side Roughing operation
002.jpg
Somewhere during Finishing operation on left side.
003.jpg
What it looks like when it comes off the machine before the back and front blocky parts are removed and the sanding starts.
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#3 Re: JM Benchrest - Exotic Wood

Wed Aug 16, 2017 4:54 pm

credit: http://www.benchrest.si/gallery/#jp-carousel-404

...the gun in action at Slovenija Benchrest 2017 World Champs...

NB: Paul Van Gass, a South Afrikaner with his LV

"Specifications of my Light Varmint rifle -

Barrel
.177 Select Lothar Walther barrel. Albert Fourie (Wannebe) cut, ported and crowned this barrel for me – he actually did several, but this is the one that has put a smile on my face!
Length: 525mm
Port: 3.5mm
Sleeve: Carbon Fibre

Regulator
Hein Frommann (Mater) built me one of his regulators and modified the TM regulator to accommodate the second regulator (double reg). The Frommann regulator fits inside the air cylinder and takes up minimal volume. This rifle is now super consistent all the way from 200bar down to 90bar and is very easy to adjust.
TM1000 regulator: set at 75bar
Frommann regulator: set at 90bar
Velocity: 781f/sec – 787f/sec with 4.53 JSB 8.44gr Exacts (11.52fpe)

Stock
Zebrano - just managed to get it within the weight limit. Stock was cut on cnc and finished with 2K clear coat(matt/satin).
Total Weight: 4.668kg (including rifle and scope)"
Attachments
20727713_10207417921245121_1871623347_o.jpg
JM Exotic BR Stock - RAW barreled Action
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#4 Re: JM Benchrest - Exotic Wood

Wed Aug 16, 2017 11:08 pm

Credit: https://www.airrifle.co.za/threads/3719 ... ir-Weapons

Origins of the action block ...
Attachments
V-GASS-01.jpg
V-GASS-02.jpg

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