{{Short description|Device used in tank guns}} {{More citations needed|date=September 2023}} [[File:Main gun on Challenger 1 tank at Bovington Tank Museum.jpg|thumb|The mirror for the muzzle reference system on this Royal Ordnance L11 is inside the metal housing on top of the thermal sleeve.]] A '''muzzle reference system''' ('''MRS''') is a device used on most modern tank guns and some artillery systems that measures the bending of the barrel due to heat, gravity and other issues. It normally consists of a laser device and detector mounted at the breach end of the gun, often co-located with other optics like the gunner's sight, and a mirror at the muzzle. By measuring the deflection of the barrel, corrections can be applied by the ballistic computer to correct for changes as the gun is fired.
==Static muzzle reference system (SMRS)== {{Empty section|date=December 2023}}
==Dynamic muzzle reference system (DMRS)== {{Empty section|date=December 2023}}
==See also== *Thermal sleeve
==References== * {{cite journal |first1= Tolga |last1= Dursun |first2= Firat |last2= Buyukcivelek |first3= Çağrıhan |last3= Utlu |title=A review on the gun barrel vibrations and control for a main battle tank |journal= Defence Technology |date=May 2017 |volume= 13 |issue= 5 |pages= 353–359 |doi= 10.1016/j.dt.2017.05.010 |doi-access= free }}
==External links== {{Commons category|Muzzle reference systems}}
Category:Ballistics
{{mil-stub}}