So the OP had the following,
With many different postings over the year regarding poor crimps caused by the amount of space the shot & wad occupy (influenced by shell volume and powder density) I am wondering if there is any type of gauge that can measure the depth from the shell mouth to the bottom of the shot cup for various shot charges.
What I envision is a metal rod, just very slightly under the diameter of the inside of the shot cup with markings indicating the shot charge that would fill the shell to the proper depth for a given shot weight to provide for a solid crimp without dishing or failing to completely close. Such a gauge would have to be calibrated for hard shot and another for chilled shot because the volume needed would be slightly greater for hard (because of the slightly lower density caused by the antimony) than chilled shot.
Such a gauge would allow you to see if a given wad, powder, shell and shot combo would provide for a good crimp. If not, and the shot charge thrown by the bushing does weigh, on a scale, the correct amount, then changing one or more of the combination would be indicated. If the gauge indicates a correct volume but the shot is too full or too low, then checking your bushing size might be needed with corrective adjustments to the bushing to provide a correct weight of shot.
Anyone aware of such a deice?
Then Bob had the need to respond with,
Pyrdek I do understand what you want but I am confused. You ask for something to measure the volume and then you want the same tool to give you the proper weight. I don't believe that is possible which doesn't matter as the weight is not important to start with.
As long as the shot charges are consistent the only thing I would be concerned with is the volume drop. Every reloading machine you buy is set up to drop by volume not by weight.
Bob Lawless
Bob gives apparently gives some not so useful information. First, Bob is confused, saying, “I am confused”, and what good does that do for the OP. Then opines, “I don't believe that is possible which doesn't matter as the weight is not important to start with.”. This information is both useless, as it was not the belief of Bob the OP was interested in and the statement contained a false claim, “weight is not important to start with.” Amazing right, and it continues with another interesting claim, “the only thing I would be concerned with is the volume drop.”, then another, “Every reloading machine you buy is set up to drop by volume not by weight.”.
It is pretty clear the OP did not gain any useful insight to his question and the interesting and false claims made by one (Bob) should not enter into the aspect of a reloaders (person) thoughts.
Now to Bobs latest posts. Last one first, on second thought 909 first,
They do that so all the reloads are short pellets so we miss targets and they can laugh at us behind our backs
I guess finding the flow patterns of small relatively dense spheres within a cylinder that has a disruption to chaotic order of stacking, is out.
The reloader is set up to drop a specific weight of a specific size and density of, in this case shot, to achieve the stamped weight, of a fixed bar. It is not about the number of pellets gained or lost when the objective is getting the correct weight.
909,
Here are some words from manuals,
MEC
Compatible components: Primers, wads, powder charge and weight of the shot charge must be in accordance with manufacturers specifications. Handloader guides are available from component manufacturers or possibly from your source of reloading components. We recommend that you use the data listed in the handloader guides. Because we have no control over the type, quality, or quantity of components used, we assume no responsibility relative to your reloading or finished shells.
Hornady,
2. Your loader was furnished with standard bushings, 12 GA. 1 ⅛ oz. #7 ½ shot.
RCBS,
LOADING DATA • Use
only laboratory tested reloading data. There are many lab tested shotshell manuals available. Always
follow the load data exactly as it is published in any shotshell reloading manual. • Never substitute components • OBSERVE ALL WARNINGS ABOUT THE USE OF MAXIMUM LISTED LOADS
11/8 oz. #71/2 shot bushing
Carefully check the charge
weights thrown as they can vary based…, … type of shot used.
The Shot bushings were calibrated to soft lead shot. Chilled or Magnum shot has a higher antimony content and though the shot size may be #8 or #7.5 etc., there is less mass/weight for the same volume versus soft lead. Bushings
may be enlarged to drop a larger volume (greater mass/weight) of shot or sleeved to reduce the volume (less mass/weight) of shot.
You see 909, it is not about the pellet count, it is about weight. In Bob’s case, “
all of mine drop just about 1 1/16 ounces of shot.”. Bob lists a weight of what all his bars drop, why, if volume were all that matters, why can’t he list the volume he loads to. Anyway, if the weight was dropped using Bob’s bars was with 7.5 high antimony shot, that is 27 grains, each pellet weighing 1.2 grains is 22 pellets, less than if the bar was to drop 9/8oz.
909 what you say may be true but the OP poster is asking a question about the volume and a gauge that will tell him the size of the shot charge needed. It doesn't say whether he has to much lead or to little. If it is to much the 22 pellets that John wants to put in certainly won't help the problem.
Bob Lawless
Bob, “
909 what you say may be true”, in your case that may be true, not most, as most follow the advice of the reloading component manuals and not from, Bob. Then we have, “
OP poster is asking a question about the volume and a gauge that will tell him the size of the shot charge needed. It doesn't say whether he has to much lead or to little.”. Bob, the OP does not need to tell you whether he has too much or too little lead, he is asking if that kind of tool exists. As the OP has seen many posts,
“many different postings” of poor crimps, it sounds like if the tool existed it could be used prior to getting poor crimps, “
markings indicating the shot charge that would fill the shell to the proper depth for a given shot weight to provide for a solid crimp without dishing or failing to completely close.”.
In your own words and I quote.
Good job Bob, yep, they were what I wrote.
Tell us please how many have you filed by hand???? If you think that isn't a project then you have never done any by filing.
Bob, it is not about me or what I have done, it is about you and what you could do and have said/written.
Are you absolutely sure that you never insinuated that a non-adjustable shot drop is to me?????
Hmmm, well Bob, no need to insist that a non-adjustable drop is to you, as you have said, “I can tell you I don't have an adjustable bar/bushing machine and all of mine drop just about 1 1/16
ounces of shot.” and “Remember I don't have an adjustable bushing”,seem to suggest your drops are non-adjustable, no. Though a simple file and tape can change that, your choice.
You see John when you buy a machine that is factory adjustable you just dial in the weight you want. If you buy a machine that isn't factory adjustable you can't. You insist that It is up to me to make it adjustable or in some way conform to the weight you say I should be able to get. Now John as far as I am concerned your insistence that I should modify my bar bushing makes it quite a bit more than being cheated.
You are funny, I have said, “If your happy with a 1 1/16oz drop, or your fixed volume that gives you 1 1/16 so be it, have at it.”, and “Again, if your happy excepting less than allowed, so be it.”, and “If you don't think having 22 less pellets in your load affects your outcomes, more power to you.”, and “If you are accepting the lower weight drop to save money or with a belief that using less pellets is an effective way compete equally, go ahead, that is your choice.”. Does that sound like I am insisting you make your machine adjustable? You can, and I would, but I have never insisted you do, your choice. You are a funny man.
Well John if a 1 1/8ounce charge of # 8's has 540 Pellets using Mag or Chilled shot tell me what difference the weight make please.
John as usual it doesn't matter how anyone else does it except that unless they do it the same way John does it they can't be right or have a satisfactory out come. If it isn't on the paper it isn't correct is it John???? So maybe you can tell us why the reloading machine manufacturers have been selling their machines this way for decades??????
Well Bob, first I would ask, is it your loading, that is dropping 540 pellets of #8, mag or chilled? Is this the charge of shot that your 1 1/8oz bar drops? That amount, 540 pellets you see, Bob, using the density listed as chilled is 409 pellets/oz. in the MEC manual is about 37.42gm. Using that density and adding 4% antimony it would be 36.85gm. Bob, 31.89gm is 1 1/8oz, above 32.85gm would exceed ATA rules.
Bob, it isn’t my way, it is the way as noted above by many manufacturers of the products we use to reload.
Shoot well.
John