Tools & Resources. Most Men Don't Need PSA Tests, Doctors' Group Says. MONDAY, April 8 (HealthDay News) -- Men have long been encouraged to get prostate cancer screenings, but there's insufficient evidence that the benefits of a PSA test outweigh the substantial risks associated with the screening.
There are two types of crimp used when reloading handgun cartridges: the roll crimp and the taper crimp. Roll Crimping. With a roll crimp, the diameter at the very end of the case mouth is reduced, and rolled inward toward the bullet, leaving a slight radius at the top of the case.
Taper may refer to: 1  Part of an object in the shape of a cone (conical) 2  Tapering (mathematics): in geometry, or in the casual description of a shape or object, a gradual thinning or narrowing towards one end (i.e., a conical profile) 3  Fishing rod taper, a measure of the flexibility of a fishing rod.