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Glued-In Tubegun. Defiance Mutant long action with Eliseo RTM tubegun chassis in 280AI

posted Dec 6, 2013, 3:15 PM by chou brothers   [ updated Dec 6, 2013, 4:51 PM ]
A glued-in tubegun chambered in .280 Ackley Improved ready for F-Class. By gluing-in these rock solid rifle components, the results is unsurpassed rigidity and accuracy.

Raw components. Defiance Mutant action is specifically designed for Tubegun chassis, features extended tenon length and integral recoil washer for increased barrel contact and incredible rigidity. Eliseo RTM Tubegun Chassis offers a 4-way adjustable butt for best ergonomics. Bartlein 7mm barrel, .280AI reamer specifically designed for 180 hybrids.

Beautifully machined barrel tenon, note the length of the extended tenon.

Barrel is timed to the action. 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 measured with a dial test indicator on the bore of the muzzle. As with all chambering we do, the action is timed so the curvature of the bore runs in the 12 o'clock position to maximize the elevation on your scope, balance out windage adjustments and provide the best barrel harmonics.

Roughing the internal surface of the chassis.

Internal surface roughed.

Lines are marked indicating exposed surface while assembled in chassis, they will not be roughed for obvious cosmetics reason.

Action roughed.

Action being glue-in, all epoxy cleaned up for curing.

Epoxy cured, epoxy breaks off the screws easily when release agent is applied.

Flat cap screws are countersunk to mate perfectly and self center the rail prior to scope base glue-in.

Scope base is roughed.

Chassis is also roughed and epoxy is applied.

Matching countersink in the scope base, all in the little details.

Jewell trigger installed.

Rifle complete.

Eliseo RTM Tubegun Chassis in Blue Titanium Cerakote
Defiance Mutant long action (Glued-in)
Bartlein 7mm 4 groove 1-9 32" finished Heavy Varmint barrel
Jewell trigger
Nightforce NXS scope
Eliseo fore-end bag rider