Planck constant

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Planck constant

or

Planck's constant

n
(General Physics) a fundamental constant equal to the energy of any quantum of radiation divided by its frequency. It has a value of 6.62606876 × 10–34 joule seconds. Symbol: h See also Dirac constant
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Hbar coins will be available through crypto exchanges.
chrome moly match, 1:9 twist, HBAR profile OVERALL LENGTH 39.5 in.
Twenty-inch match-grade Service Rifle barrels often have an HBAR or CMP contour an inch thick under the handguards and stepped down to 0.750".
Energy = 2 x (1/2 H^2/mu0) x Sz = omega x hbar x R^2
One example of such a device is the high overtone, bulk acoustic resonator (HBAR).
Can't really recommend chrome-lined barrels from an accuracy standpoint, although I've had some that shot really, really well (on Colt-brand HBAR's).
The Tactical Precision Rifle is a lighter weight, full-size precision tactical rifle, featuring the M111 modular free-float rail system, bead-blasted 416 stainless HBAR, AAC blackout flash hider, B5 Systems SOPMOD Stock, Magpul MOE grip and triggerguard.
Bulk acoustic resonators in high harmonic modes (HBAR) and in films (FBAR) have been made in laboratories and some are approaching practical applications.