10gaOkie wrote:Once you establish which you have in one batch of hulls, the sticking a pencil down in them to measure depth will show a variation of about 1/8" or slightly more between large and small volume hulls. This holds true for both 12 and 10 gauge.
One of the things that has me scratching my head, is 2 3/4" unibody Rem hulls you would think they would be large volume not having a basewad. However, they are the same volume as a tapered STS Rem hull. Crazy!
This is again because ammunition companies do not make hulls for reloading purposes they make them to suit their needs when they make a given load. As You stated you can't tell by the color of the base wad what a given hull volume will be, measuring it is the best and safest way.
The Remington Unibody hulls are exactly what the name implies, a Unibody--read that one piece hull(actually two piece), they have no separate basewad. The yellow, black and white/clear basewad hulls are three pieced hull having a separate tube, basewad and brass section.
With most of the Remington hulls things aren't that bad as many of them come in close to being the same no matter what the outside of the hull says the load is, the real fun starts if you try to match up Winchester hulls which not only have different basewad heights but also different basewad shapes..