Using an overall length gauge
, he measured the cartridge base to ogive for G&A's test RPR at 1.88 inches.
The surest and fastest way is to use a Hornady LNL Overall Length Gauge
to check throat length.
Insert one of your ten bullets into the neck of the dummy casing attached to the front end of the overall length gauge
. There is a collar on the shaft of the overall length gauge
with a little knurled brass-colored nut on it.
Whenever I'm loading for single-shot pistols in some bottle-neck cartridge, Hornady's Lock-N-Load Comparator Set with 14 bullet inserts helps determine specific cartridge over-all length (C.O.A.L.) just like Frankford Arsenal's cartridge overall length gauge
The distance from the instrument's both positions [l.sub.e] is fixed by using reference measure of length, for example, end length gauge
In order to measure the pit depth we used the MT 2751 length gauge
, from HEIDENHAIN.
The last tool, relating specifically to loading for accuracy, would be an overall length gauge
to determine bullet seating depth as it relates to the rifling lands.
I prefer to again use a case length gauge
. Gauges such as the RCBS Precision Mic come with two graduated caps--the first for determining headspace, the other for determining bullet seating depth.
You can purchase a special case length gauge
that has various cartridge designations marked on it, or you may simply use a caliper and refer to recommended case length in a loading manual.
The easiest way is to use the Stoney Point cartridge length gauge
. This neat little gadget, combined with a set of calipers, tells you exactly where your bullet seating depth should be, in less than a minute.
Force at break (in Newtons) was recorded from digital output, and benchmark separation at break was measured by length gauge