
TMT Elevation Cap for the Viper HS 1-4x24 Riflescope
The Vortex TMT (Trajectory Matched Turret) elevation cap is not just a simple BDC cap, it is truly custom-matched to your favorite rifle and load. For maximum speed when adjusting for accurate long range bullet drop, nothing beats dialing a yardage-marked elevation turret cap. No calculations are necessary—simply range your target and dial the turret to the matching range. Building a TMT elevation cap is easy and does not require the use of specialized equipment such as a chronometer.
HOW TO ORDER
- Read the Ordering Vortex Custom TMT Elevation Turret Caps instructions before entering any data on this page.
- Determine bullet's ballistic coefficient (BC) Use the LRBC's Bullet BC feature to find this. Can be obtained from ammunition manufacturer's websites.
- Determine muzzle velocity This information can be found on ammunition manufacturers websites or measured yourself using a chronograph. For maximum accuracy beyond 600 yards, utilize the LRBC’s Trajectory Validation feature to supply a customized True Velocity.
- Estimate altitude Estimate the future altitude where you’ll be most often using your TMT cap.
- Estimate temperature Estimate the future temperature in which you’ll most often use your TMT cap.
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Because the customized TMT turret cap is etched, it will be unique to one rifle and load. Therefore, the TMT elevation cap is not returnable or refundable.
Vortex Limited Lifetime Warranty:
All limited lifetime warranted products will be repaired or replaced at no charge for any manufacturer defects.


















