boattail


Also found in: Dictionary.

boattail

[′bōt‚tāl]
(aerospace engineering)
Of an elongated body such as a rocket, the rear portion having decreasing cross-sectional area.
References in periodicals archive ?
56mm M855--the M4A4's cartridge consists of a rimless, bottlenecked case 45mm topped with a 62-grain FMJ boattail bullet, moving at 3000 fps.
5x55 cartridge with a 174-grain, boattail, spitzer at 2,500 fps and at a pressure of 45,000 psi.
56mm NATO with a rimless, bottlenecked case 45mm topped with a 62-grain FMJ boattail bullet, moving at 3000 fps.
It was now loaded with a more conventional lead core, 232-grain FMJ, boattail spitzer bullet at a velocity of 2480 fps.
Sierra's 215-grain Spitzer Boattail sizzled over a couple of newer powders from Hodgdon/IMR.
8mm Balle 1932 N--used a conventional lead core, 232-grain FMJ, boattail spitzer bullet moving at 2480 fps.
62mm NATO cartridge that uses a rimless, bottlenecked case 51mm long and a 148-grain boattail, FMJ bullet at a velocity of 2750 fps.
Bullets pulled from current sporting ammunition are typically flat based or boattail, mike .
Hornady even sells a match load with a boattail hollowpoint bullet that, at 174 grains, closely matches the old Mark VII load.
To compensate, Federal's designers figured out the optimal boattail angle that would give them the length they wanted without having to worry about bullet stability.
with the chamber specifically cut for the Sierra 168-grain boattail match hollowpoint bullet.