I can reveal that crimp flies have been - up until now - the best-kept secret on Scottish rivers.
There was another eureka moment, however, and that was 10 years ago when crimp flies were first devised by Swedish master salmon angler and fly tyer Per Stadigh.
Early theories to study the crimp mechanism were based on mechanical models of bimetallic strips.
1: 1) Fibers with a single interface exhibit the best crimp potential; 2) The crimp potential is maximized in a skein with a straight interface passing through the center of the cross-sectional area of a conjugated fiber; and 3) The crimp potential is zero for any cross-section with a center of symmetry (such as centric core/sheath).
There are some advantages to a roll crimp using only 1/4" of the hull to form.
410, a cam-operated hull vise to hold the case while the crimp is applied, a film on the procedure at their Web site and several technical brochures.
There's nothing prettier than a nicely formed crimp and nothing uglier than one that has been botched in the handloading process because the shooter wanted to gel one more reload.
One of the secrets to a nice, crisp crimp is using a shell with a skived, or tapered mouth.
Today, the roll crimp
is still employed by most factories for slug loads as well as in specialized premium shells like those loaded by Polymag and Polywad.
net, which offers the most comprehensive selection of off-the-shelf tool kits solutions for professional system integrators and installers, today added the TrueConect TC100 connector pro-style, ratcheting modular plug crimp
tool to its lineup.
Simon finds the livestock will spend hours in among the silage picking out the grains of crimp
The jaw of the tool has three color coded slots shaped to close the crimp
tightly around the wire without damaging the surrounding heat shrink tubing.