This is not about the Load All. I have many of the rifle based Lee Loaders and have successfully used them for years. Lately I acquired a 12 guage Lee Loader. Here is my question. The Lee Loader was originally designed when paper hulls were the standard but in the early 60's the plastic hulls started becoming dominant. Lee reacted by designing and offering a crimp starter that helped for the new plastic hulls.
Regardless, where the old paper hulls are easily star crimped by hand pressure, I have found the I need to use the plastic hammer to get a good crimp on the 1 fired plastic hulls (Winchester AA). Here is the question. If I have drilled a countersunk hole in the wood so that the primer is never in contact with a solid surface while crimping by hammer, is there still a risk that the hammer crimping will cause the primer to go off?
Regardless, where the old paper hulls are easily star crimped by hand pressure, I have found the I need to use the plastic hammer to get a good crimp on the 1 fired plastic hulls (Winchester AA). Here is the question. If I have drilled a countersunk hole in the wood so that the primer is never in contact with a solid surface while crimping by hammer, is there still a risk that the hammer crimping will cause the primer to go off?