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F-Class competition F-Open build. BAT MB action, McMillan F-Class stock, Jewell Trigger, Bartlein barrel in .284 Win.

posted May 16, 2017, 10:06 PM by chou brothers   [ updated May 16, 2017, 10:16 PM ]

Simply the best! All out F-Open build. Peak accuracy, ready to win matches.


Raw components, BAT Machine MB action and trigger guard, McMillan F-Class stock, Jewell Trigger, Tubb adjustable butt, Bartlein 7mm 1-8 twist 5R Heavy Varmint 1" at muzzle 32" finished barrel.


BAT machine MB action. Close up of perfection in all it's glory.


Machining tenon.

Tenon is threaded, immaculate surface finish.


Action fitted, clocked to the barrel curvature of course.


Tenon fully machined and chambered. Perfectly concentric and square to the bore axis within .0001, verified after every major machining sequence.


Machining crown.

11 degree accuracy crown. Metal work complete.


Milling to specified length of pull.



Setting adjustable butt bracket.


Stock contour transferred.


Rough grinding bracket.


Hand filing bracket to fit.


Sanding bracket for seamless fit.


Adjustable butt hardware seamlessly blended with stock.


Stock basic inlet was for BAT B. Inlet must be elongated to accommodate MB.


Milling recoil lug recess.


Trial fitting action.


Milling trigger inlet.


Pillar cavity milled.


Epoxy is applied, pillar installed.


Trigger guard inlet recess milled.


Bolt release recess milled.


Ejection port cutout milled, perfectly blended to ejection port.


Bolt handle recess complete.


Marriage of barreled action to stock.


Initial separation, flawless stress-free bedding. Perfection.


Stock fully cleaned. All proper reliefs made and clearances checked.


Rifle complete.

BAT Machine MB action
BAT Machine trigger guard
McMillan F-Class stock
Jewell Trigger
Tubb adjustable butt
Bartlein 7mm 1-8 twist 5R Heavy Varmint 1" at muzzle 32" finished barrel.


Thank you to all our viewers for your continued interest.


PRS rifle build. Surgeon action, MPA BA competition Chassis, Jewell HVR trigger, APA brake, Bartlein Barrel in 6x47 Lapua

posted Jan 2, 2017, 6:01 PM by chou brothers   [ updated Jan 3, 2017, 1:35 AM ]

Purpose built PRS competition rifle. Light recoiling, balanced, made for improvised positional shooting.


Raw components, Surgeon 591 short action, Masterpiece arms (MPA) BA competition chassis, Jewell HVR trigger, American precision Arms (APA) Gen 2 Little Bastard Brake, Bartlein 6mm 1-7.5 twist 5R Medium Palma 26" finished barrel


MPA BA competition Chassis in sniper green.


Machining tenon.


Machining threads.


Fitting the action.


Tenon fully machined, immaculate surface finish. Perfectly square and true to bore axis.


Machining the muzzle.


Fitting APA brake.


Note the radius of the bolt release protrusion on the action receiver body.

This specific action's radius happens to contact this specific chassis's action cutout, preventing even seating of barreled action. Non-drying ink verifies unwanted contact.
Radial relief must be made to the chassis for proper stress-free seating of barreled action. Even though the chassis was specifically machined for a Surgeon 591action, no two machined parts are machined equal due to normal working tolerances of both manufacturer.  We verify, remedy, and ensure proper fit of parts without bind or stress when building a rifle. Nothing is overlooked!


Barreled action Cerakoted in Armor Black. Action is prepped, sealed with putty, release agent applied, ready for bedding.


Marriage of barreled action to stock.


Initial separation, off to the mill for clean-up, clearance and relief cuts.




Chassis fully cleaned. All proper clearance cuts and reliefs made.

Rifle complete, perfectly balanced.

Surgeon 591 Short action Cerakoted in Armor Black
Masterpiece Arms MPA BA Competition Chassis in Sniper Green
Jewell HVR Trigger
American Precision Arms (APA) Gen 2 little bastard Brake
Bartlein 6mm 1-7.5 twist 5R Medium Palma 26" finished barrel Cerakoted in Armor Black
Harris Bipod

Precision rifle build, Defiance Deviant action, Manners Elite tactical stock, Timney Calvin Elite trigger, Bartlein barrel in 300 Win Mag.

posted Sep 13, 2016, 7:43 AM by chou brothers   [ updated Sep 13, 2016, 7:59 AM ]

Precision rifle build, perfect for prone type precision matches.

Raw components, Defiance Deviant long action, Manners Elite tactical midnight mini-chassis stock, Timney Calvin Elite trigger, Bartlein 30cal. 1-11 twist 5R Heavy Palma 26.5 finished barrel, Badger FTE brake.




Machining tenon and counterbore.


Action fitted.


Breech fully machined and chambered, amazing surface finish.




Crowning and machining muzzle.


Muzzle fully machined, perfectly square and concentric to bore axis.

Boring brake baffle diameter ensuring maximum efficiency, in-line and true to bore axis.


Rough inletting to accommodate barreled action.


Fresh from the oven, barreled action Cerakoted in Sniper Grey.


Action prepped, putty seals-up areas of unwanted bedding, release agent applied, ready for bedding.


Marriage of barreled action to stock.


Final fitting and check of all parts, ensuring clearance where needed. Zero bind, zero stress, repeatable shot to shot harmonics provides peak accuracy.

Filing bolt handle recess, ensuring bind-free operation and full uninterrupted cocking piece/firing pin travel.


Non-drying paint applied, paint transfer indicates contact/bind area.




Milling relief cuts.


Relief cuts blacked.

Perfect stress-free bedding. Stock fully cleaned. All proper reliefs made and all clearances checked.


Magazine checked and tuned for flawless feeding.


Rifle complete.

Defiance Deviant long action Cerakoted Sniper Grey
Manners Elite tactical midnight mini-chassis stock
Timney Calvin Elite trigger
Bartlein 30cal. 1-11 twist 5R Heavy Palma 26.5 finished barrel Cerakoted Sniper Grey
Badger FTE brake.

Ultralight hunting rifle build. Stiller TAC338 action, Manners carbon fiber stock, Timney Calvin Elite trigger, Proof research barrel in .338 Lapua

posted Jul 8, 2016, 6:15 AM by chou brothers   [ updated Jan 3, 2017, 1:52 AM ]

Purpose built lightweight hunting rifle with ultralight components.

Raw components, Stiller TAC338 Action, Manners Carbon fiber stock, Timney Calvin Elite trigger (not pictured), Proof research carbon fiber wrapped barrel, Titanium radial brake.



Stiller TAC338 action utilizes centerfeed box mag. Relief must be made on the rear of box mag to retrofit into Remington BDL hardware.

Proof research carbon wrapped barrel with Bartlein barrel core.



Bore of breech dialed-in perfectly concentric to the bore axis within .0001 at 2 point. Direct reading.

Machining tenon.

Action is fitted to barrel, timed to the curvature of course.

Tenon fully machined, metal-free anti-seize on threads.


Dialing-in the muzzle.





Titanium muzzlebrake installed, metal work complete.


Stock cerakoted in 3 colour GAP camo.



Metal portion of barrel cerakoted in Armor Black.

Bottom hardware is bedded to the stock, full contact without compression, zero lateral movement, no slop or bind, perfectly level. Provides perfect foundation for bedding.

Pillars installed. Stock roughed and degreased, ready to accept epoxy.



Marriage of barreled action to stock.

Initial separation, off to the mill for clean-up, clearance and relief cuts.

Stock fully cleaned. Perfect stress free bedding.

Relief cut for Timney trigger, ensures bind-free fit.



Rifle complete.


Stiller TAC338 Action.
Manners Carbon fiber stock.
Timney Calvin Elite trigger.
Proof research carbon fiber wrapped barrel with Bartlein .338 5R barrel core.
Titanium radial brake.


Thank you to all our viewers for your continued interest.

F-Class competition F-TR build. Barnard S action, McMillan F-Class stock, Timney tactical trigger, Krieger barrel in .308 Win.

posted Apr 13, 2016, 11:54 AM by chou brothers   [ updated Apr 13, 2016, 12:12 PM ]

A winning combination of component for a purposed built F-Class competition rifle. Peak accuracy, ready to win matches.


Raw components, Barnard S action, McMillan F-Class stock, EGW recoil lug, Krieger 30 cal 1-11 twist Light Varmint 32" finished barrel, Timney Tactical trigger (not pictured). Components courtesy of our good friends at Hirsch Precision.


Barrel is visually inspected, measured and slugged to verify uniformity.



Bore of breech dialed-in perfectly concentric to the bore axis within .0001 at 2 point. Direct reading.




Rough machining barrel tenon.


Finishing pass.



Tenon machined to diameter and length, recoil lug fitted to appropriate diameter.


Bore is verified running true and concentric between machining steps.



Machining threads.



Tenon threaded.


Bore indicated for highest point of curvature.



Action is fitted and timed to the curvature of the barrel. Note the red marking at the 12 o'clock position on the 4-jaw chuck, it indicate the highest point of barrel curvature when rotated concentrically previously measured on the bore of the muzzle. As with all chambering we do, the action is timed so the curvature of the bore points to the 12 o'clock position to maximize the elevation adjustment on the scope, balanced windage adjustment travel for optimal optical centering and provide the best barrel harmonics.


Machining the breech.

Tenon fully machined, unparalleled surface finish.



Bore is verified running true and concentric again.



Reaming.


Chamber is throated, optimized for desired bullet choice.


Chamber complete. Impeccable, like fine jewellery.



Bore of muzzle dialed-in perfectly concentric to the bore axis within .0001 at 2 point.


Machining crown.


11 degree accuracy crown, perfectly concentric and square to the bore. Metal work complete.


McMillan stock, time to install pillars.




Pillar cavity milled.



Trigger guard is unable to fit in Mcmillan's existing inlet, escutcheon radius is blocking trigger inlet recess.


Escutcheon radius milled.


Trial fit of trigger guard. Trigger guard sits proud of existing trigger inlet recess.



Trigger guard inlet recess is milled to appropriate depth, nice and flush.


Custom machining pillars to height.



Pillar cavities roughed.

Stock and trigger guard inlet recess is roughed and degreased.



Epoxy applied.


Bedding trigger guard for perfect even contact.


Barreled action prepped, release agent applied, putty seals area of unwanted bedding.


Epoxy applied.


Marriage of barreled action to stock.



Initial separation, flawless stress-free bedding. Perfection.





Clean-up, relief and clearance cuts milled/drilled.



Anschutz rail sits proud of stock contour from Mcmillan, not good for front rest tracking (if the rifle ever use for testing or switch caliber). Will inlet flush.



Anschutz rail inlet recess is milled appropriate depth, perfectly flush.



Anschutz rail's screw protrusions milled to ensure barrel free-float.




Anschutz rail and inlet recess is roughed and degreased.




Anschutz rail is glued and screwed for maximum rigidity, ensures solid flex-free foundation for bipod.


Perfectly flush, ensures smooth uninterrupted front rest tracking.

Rifle complete.

Barnard S action.
McMillan F-Class stock
EGW recoil lug
Krieger 30 cal. 1-11 twist Light Varmint 32" finished barrel
Timney Tactical trigger.

Please visit our good friends at Hirsch Precision for all your Precision rifle needs.

Precision rifle build, BAT tactical short action, AICS AX 2014 OD green chassis, CG Trigger, Bartlein Barrel in 6.5x47 Lapua

posted Feb 7, 2016, 4:17 PM by chou brothers   [ updated Feb 18, 2016, 10:36 AM ]

Precision rifle build, perfectly balanced and intuitive. Top quality components for peak accuracy.


Simply the best! Raw components, BAT tactical short action, AICS AX 2014 OD green chassis, Bartlein 6.5mm 1-8 twist 5R Medium Palma 26" overall finished barrel, CG trigger and "Muzzle brakes and more" flush fitting brake.



Rough machining.

Taking measurement.



Barrel dialed-in perfectly concentric to the bore axis withing .0001 at 2 point. Direct reading.


Finish machining tenon to diameter.

Threading tenon.

Tenon fully machined, impeccable surface finish, like fine jewellery.


Verifying concentricity, ensuring bore is dialed-in from start to finish between every step.

Finish reaming.

Headspace verified, off to the muzzle end.

Machining crown.


11 degrees accuracy crown.

Muzzle tenon fully machined.


Boring muzzlebrake to optimal efficiency diameter.

Muzzle brake profiled flush. Metal work complete, off to Cerakoting.

Fresh from the oven, barrel cerakoted in Mil-Spec OD green.


Barreled action prepped, release agent applied, putty seals area of unwanted bedding.


Chassis is roughed and degreased. Feed height is previously verified and retained for flawless feeding.


Epoxy is applied.


Marriage of barreled action to chassis.

Initial separation, flawless perfect stress-free bedding.




Milling clean-up and clearance cuts.


Chassis fully cleaned. All proper reliefs made and all clearances checked.




Rifle complete.

BAT Tactical short action.
AICS AX 2014 Chassis in OD green
Bartlein Barrel 6.5mm 1-8 twist 5R Medium Palma 26" finished overall, Cerakoted in Mil-Spec OD green
"Muzzle brakes and more" 4 port muzzlebrake
CG Trigger


Dual F-Class competition F-TR build, Kelbly Stolle Panda action, GRS X-Eater stock, Jewell trigger, Bartlein Barrel in .308 Win.

posted Dec 3, 2015, 2:52 PM by chou brothers   [ updated Dec 4, 2015, 1:40 PM ]

Purpose built F-Class F-TR competition rifle, Top quality components with peak accuracy in mind.

Raw components, Kelbly Stolle Panda F-Class action, GRS X-Eater Stock, Bartlein .30cal 1-10 twist 5R 32" Heavy varmint barrel, Jewell Trigger, Anschutz rail.


Tenon fully machined, beautiful surface finish.


Action fitted, timed to the curvature of the bore of course.


Perfect 11 degree accuracy crown, square to the bore. Metal work complete, off to inletting.


Locating stock's centerline with edge finder.


Centerline located.


Center-drilled to ensure hole centering.

Action screw holes drilled to inlet datum.



Rough inletting action outline.



Recoil lug recess inletted.

Trial-fit of action, looks great.


Trigger recess inletted.


Holes milled, ready to accept pillars.


Barrel channel inletted to accommodate HV barrel contour.




Trigger guard inletted.


Same with blue rifle.


Stock being roughed and will be degreased.



Epoxy and pillars applied.



Epoxy is applied to action, marriage of barreled action to stock.



Initial separation, flawless perfect stress-free bedding, off to the mill for cleanup.


Widening anschutz rail to accept accessories.


Locating centerline with edge-finder.


Inletting anschutz rail recess.



Trial fitting anschutz rail.



Anschutz rail is glued and screwed for maximum rigidity, ensures solid flex-free foundation for bipod.




Hand-profiling bolt release recess.



Rifles Complete, ready to win matches.

Kelbly Stolle Panda F-Class action
Bartlein .30 cal 1-10 twist 5R 32" finished Heavy Varmint barrel
GRS X-Eater stock
Jewell trigger
Duplin bipod

1000 yard BR rifle build. BAT M action, Mcmillan Tooley MBR Stock, Bartlein Barrel in 300 Norma/300 WSM switch barrel/bolt.

posted Sep 3, 2015, 1:07 AM by chou brothers   [ updated Sep 3, 2015, 10:18 AM ]

Custom rifle built for 1000 yard Benchrest competition. BAT Machine action and Bartlein barrels, simply the best!


Raw components, BAT M action with Magnum and Lapua boltface bolts, Mcmillan Tooley MBR stock (pre-inletted for BAT M), Bartlein barrels, Jewell trigger, Harrell's brake and tuner brake, Tubb 3-way adjustable butt (not pictured).


As this is a older BAT Machine model M, newer BAT M bolts requires timing/retrofitting to old receiver.  The bolt's cocking ramp must be timed to the receiver's cocking piece raceway to achieve full lug lockup, consistent ignition and uninterrupted full fire-control travel.


Edge finding receiver's bolt handle recess.

Original mated bolt, bolt properly timed. Full clearance of receivers cocking piece raceway against bolt's cocking ramp.

Newer BAT M bolt on old receiver, receiver's cocking piece raceway partially blocked by bolt's cocking ramp.


Receiver machined to retain existing bolt's timing and properly time/retrofit new bolt.

Beautiful surface finish.

New bolt before retrofit, not timed.

New bolt after retrofit and properly timed.

Old bolt timing maintained.


Breech/tenon fully machined, like fine jewellery.


Headspace verified.
 

Fully machined tenon and 11 degree accuracy crown, perfectly square/concentric to the bore. 
Profiled brake flush to match barrel contour, seamless transition.

Additional tuner brake mated to existing tenon.

Action's height established, stock roughed then degreased.

Putty and tape seals areas of unwanted bedding, release agent applied. Ready for bedding.


Epoxy is applied, marrige of barreled action to stock.

Initial separation, flawless perfect stress-free bedding. Off to the mill for relief cuts.


Hand-fitting recoil pad to Tubb 3-way adjustable butt system.

Custom machined 4" catamaran style tracking plate.


Rifle complete.

BAT M action with Magnum and Lapua boltface bolts
Mcmillan Tooley MBR stock
Bartlein 30cal. 5R 1-9.5 32" HV barrels
Jewell BR trigger
Harrell's brake and tuner brake
Tubb 3-way adjustable butt



Star Shooter F-TR build. Barnard P action, Star Shooter stock, Bartlein barrel in .308Win

posted Jun 15, 2015, 6:23 PM by chou brothers   [ updated Jun 15, 2015, 6:28 PM ]

Star Shooter F-TR competition build. Beautifully finished stock.

Raw components, Barnard P action with trigger,  Star Shooter stock (pre-inletted and finished by Star Shooter), Bartlein .30cal 1-11 twist 5R 32" Heavy Palma Barrel.



Pristine clearcoat, highlighting the wood grains. Carbon fiber reinforced.


Action fitted.

Barrel tenon/chamber machined perfectly square and concentric to the bore. Stunning surface finish.

11 Degree accuracy crown, metal work complete.

Pillar bedding stock, precise inletting done by Star Shooter. Note the carbon fiber reinforced fore-end.

Initial separation, perfect stress-free pillar bedding. Off to the mill for clean-up and relief cuts.

All proper reliefs made and clearances checked.


Rifle Complete.

Barnard P action with trigger
Star Shooter stock
Bartlein .30cal 1-11 twist 5R 32" heavy Palma barrel

Visit our good friends at Star Shooter for all your F-Class needs.

AI AW Clone build in .308 Win. Badger M2008, AICS chassis, Bartlein Barrel and Badger FTE brake Cerakoted in Armor Black

posted May 12, 2015, 11:47 AM by chou brothers   [ updated May 12, 2015, 12:52 PM ]

Accuracy International AW rifle clone build.


Raw components, Badger M2008 action, AICS Chassis, Bartlein .30cal 1-11 5R heavy Palma barrel, Badger FTE brake, Jewell bottom safety trigger.


Fully machined tenon, breech and chamber.


Action fitted and headspace set.

Muzzlebrake installed, metal work complete.


Stripped AICS chassis for Remington action. Requires modification to accept M2008 action.


Milling flats.

Milling dual recoil lugs.

Verifying required height for flawless mag-feeding.


Action screws boss milled.

Boss depth verified.

Perfect marriage of action to chassis.

Bolt handle recessed milled.

Clearance milled for trigger's assembly, ensures bind-free operation.


Chassis re-blacked.

Barreled action freshly cerakoted in Armor black.

Rifle complete.

Badger M2008 action Cerakoted in Armor Black
Modified AICS Chassis
Bartlein .30cal 1-11 twist 5R 28" finished Heavy Palma barrel Cerakoted in Armor Black
Badger FTE brake
Jewell trigger bottom safety

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