I more or less subscribe to it because I often buy lots of 200 to 500 or more of brass from indoor ranges.
I have no interest in checking all of it in my rifle and having to tap some out of the chamber with a cleaning rod.
They all get FL sized with a die set to give me exactly .000 clearance. Then I might check them if I have a case gage if not I use the rifle chamber. Any case that is tight gets FL sized again though none ever are. Once FL sized, these cases never have to be tapped out with a cleaning rod. I do this to avoid having to cull the brass in the first place and to avoid having to keep it segregated by fits or does not fit since I am about to sort it again for weight.
I sort all of this range brass by weight to find outliers. I normally enter all the weight data into a spreadsheet and graph it.
I examine the graph for a normal, skewed or bimodal distribution. Any outliers get examined to determine any reason for being abnormally heavy or light. I gage all the primer pockets for expander primer pockets.
Depending on how good I want the main lot to be I use the 4 sigmas (plus or minus some) in the middle of the distribution. The heavy cases in the right hand tail of the distribution form a smaller lot that I use to work up loads with if it is reasonably uniform. These cases will normally be the heaviest with the lowest water capacity. Loads safe in these heavy cases should be safe in the lighter cases. The lightest cases found in the left hand tail of the distribution are used to make up a lighter lot. This lot can be stored and used for spares or can be swapped or sold. This lot can also be used for hunting and varmints like the main lot of cases while the main lot is being processed into a new batch of ammo.
If you run into a bi-modal (2 humps in the graphed data) distribution you probably have brass from 2 different production lots. If you have 3 or 4 humps you have multiple lots of brass.
If you have a left hand tail and a right hand tail and no brass in between you have cases that someone like me bought and culled. The best and most uniform cases have been removed. All that is left are the heavy and light cases.
If you are a new reloader skip all the case weighing. Learn how to set your FL die exactly right and you will be miles ahead in understanding what makes for good reloaded ammo. Then resize all your brass and load it. Then go to the range and shoot it for almost instant gratification. Once you have set up and reloaded several batches you will have a good back ground for exploring more hand loading minutia.
I have no interest in checking all of it in my rifle and having to tap some out of the chamber with a cleaning rod.
They all get FL sized with a die set to give me exactly .000 clearance. Then I might check them if I have a case gage if not I use the rifle chamber. Any case that is tight gets FL sized again though none ever are. Once FL sized, these cases never have to be tapped out with a cleaning rod. I do this to avoid having to cull the brass in the first place and to avoid having to keep it segregated by fits or does not fit since I am about to sort it again for weight.
I sort all of this range brass by weight to find outliers. I normally enter all the weight data into a spreadsheet and graph it.
I examine the graph for a normal, skewed or bimodal distribution. Any outliers get examined to determine any reason for being abnormally heavy or light. I gage all the primer pockets for expander primer pockets.
Depending on how good I want the main lot to be I use the 4 sigmas (plus or minus some) in the middle of the distribution. The heavy cases in the right hand tail of the distribution form a smaller lot that I use to work up loads with if it is reasonably uniform. These cases will normally be the heaviest with the lowest water capacity. Loads safe in these heavy cases should be safe in the lighter cases. The lightest cases found in the left hand tail of the distribution are used to make up a lighter lot. This lot can be stored and used for spares or can be swapped or sold. This lot can also be used for hunting and varmints like the main lot of cases while the main lot is being processed into a new batch of ammo.
If you run into a bi-modal (2 humps in the graphed data) distribution you probably have brass from 2 different production lots. If you have 3 or 4 humps you have multiple lots of brass.
If you have a left hand tail and a right hand tail and no brass in between you have cases that someone like me bought and culled. The best and most uniform cases have been removed. All that is left are the heavy and light cases.
If you are a new reloader skip all the case weighing. Learn how to set your FL die exactly right and you will be miles ahead in understanding what makes for good reloaded ammo. Then resize all your brass and load it. Then go to the range and shoot it for almost instant gratification. Once you have set up and reloaded several batches you will have a good back ground for exploring more hand loading minutia.
This ^ I don't subscribe to.
If I collect once fired range brass and it fits my chamber without issue I neck size it, case prep it and reload it. The first firing will form it to my chamber just as if it was FL sized and you'll likely get ~5 reloads before there is a need to bump the shoulders back. With say 50 brass that's a lot of loading for a newbie by which time you've learnt the basics and can proceed onto more advanced techniques.
For those new at reloading the fewer processes that one has to master is an advantage before you become familiar with them all and as a newbie expecting sub 1/2" groups is fairyland unless by some chance you stumble on a load combination that's really good.
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