There are a lot of lots in this world. There are lots to sell cars, lots to make movies, lots at the auction house, it takes a LOT OF Birds to down a jet pne, there are lots in life (some people say), people draw lots to see who will perform some task, lots of recalls of lots of food, a standard lots are the equivalent of 100,000 units of the base currency in a Forex trade, there are food safety lots, culled performance lots, Military lots, clothing lots, and even sand lots, and there is a lot number on you box of ammunition, cases, bullets, powder and even your primers but the big question is which lot helps you when you are reloading for a long range target match. The answer is the one on the food you eat may be the most important. Yes because the food manufacturer can find a tainted ingredient and by lot number(s) tell which lots contain the ingredient and recall them defect and recall that lot before you get to ill to function in a match.

The first type of lot produces the most important services and is one my observations of cases and bullets over the years seems to explain what I see. There is a different kind of lots when dealing with ammunition components. For a factory sponsored marksman a CULLED LOT of the best they can find. I will exxpalin with the IC manufacturer.

About fifty years ago I was treated to a trip to and a tour orf a big IC company in Texas. I used a few of their products in my digital designs. Their products were built on a thin piece of sicicon crystal about 0.05 by 2 inches in diameter It could be a locic ic, and amplifier chip or a micro computer. They all start out as the thin round slice off the pure silicone crystal Designers use in their craft. It was like a sifi movie with engineers and techs covered over in white bunny suits with masks and booties To enter the place the work area they would have to walk through two doors and between the doors you received a complete air shower and put on your white bunny suit so you could enter the room where you could see the operation through a thick glass +window. Inside that room were the thin silicone crystal wafers transformed into the Integrated Circuits we see today in their little gray catapiller packages after days through the process.

After cutting and polishing The wafers were covered in alight sensetive slime and placed under an esxtreemly accurate projector which laid out "photographically" the millions of transistor, diodes and resistors into this wafer. This process was repeated as many times as the specific IC design required. Finally it wasin a special oven and cured with thousands of brothers, sister, and relatives of all types and designs. My wafer, they gave me one, was about two inches in diameter and on it was deposited a material on which was focused a pattern of circuits much like a photo development process. This process was repeated many times and the final product was a wafer with millions of transistors forming thousands of integrated circuits, which would be when cut and mounted for the application they were designed for. Now here is where the culled lot begins: A computer will, after the circuits are formed and functional, test each one for a specdific set of requirements in a thermal oven high limit to the low limit of it operating range. The computer is progrmmed to sort these IC by a standard set of tollerances. The ones that exceed all th eothers is lot № 1 -Millitary critical operation. Here NASA is counted as part of Lot № 1. Lot № 2 -Military non critical. Lot № 3 -Medical Industrial life critical. Lot № 4 -Industrial large volume users of high end electronic products that can afort the best available. Lot № 5 -goes to the electronmic supply companies and they still all meet the catalog specification. Lot № 6 -Is starting to miss some parameters over the entire temperature range but are fine in a range around room temperature applications. Lot № 7 -Is of usable but not to specification and is sold to or given to schools for educaltipn purposes and are destined for the public sale through hobby stores. Lot № 8 -is tossed into the trash or sold to small firms who will process them for toys and such that are not requiring a fully functional or relioable part. Everythig was the same; but it could not be the same because all were not equal in performance, cost, or use. So what the program isdoing is checking the response of each case to minute changes in charge weight to see which all bend the same way when the wind blows. I was a Guidance and Control Systems Engineer in a very small division of what was then the United Aircraft Systems Center in Farmington. We were so small that we shaired a building with a little group from Pratt and Whitney called something that sold turbo powwered generators Well its 2018 and I still look for answers. But now it for myself and my fellow shooters. This is the first in a series of new programs to aid my reloading for minimizing variations in muzzle velocity to the5 to 10 foot per second using cases with a large differences in case weights which have observed in many tests that some cases are very performance represented by having their weights matched to within 0.1 grain but others are not. This program is designed to find the best cases to select for a match of 1000 yards or more. This program is intended to allow an experienced reloader to the perfect charge weight variations to pull vastly different cases into one hole punching machine. It all started with my 308 with a 26 inch barrel and the best scope I thought I had ever seen. It would hit about everything, every time, at 500 meters with my WCC-14 once fired cases after they were totally small base resized, fireformed,and shoulders knocked to the proper uniform headspace, then the necks were resized to a 0.001 press-fit they were wonderful casesI used for my 500 meter work. It was easy to match up a box of 20 whith 0.1 grains a resized neck and headspace set to within 0.001 inch of not fitting at all. The bullets were matched to base to within 0.001 inch. and bullets seated withing 0.005 of jam. It was easy because I had feve hundred cases to sort out the matches. The problem was that it took five hundred cases to get those matched cases and I had four hundred left that did not match. So what do you do to use those other four hundred cases. This program solved that. Is it time to employ a simple, linear approach to determine a propellant charge allocated for each individual case to maintain muzzle velocities within the 5 to 10 fps range with cases of different volumes or weights? If its that time for you, this is the place to be. And its all FREE but there is a BUT. BUT we ask that when you are pleased with the resuts provided by this program and found a powder and C0, A0 and A1 allowing you to use a wider range of cases providing a reduced Standard Deviation in your Muzzle Velocity you will send us a US Postal letter that is a printout of your sucess story. If you do and include your name and city we will publish it for others who might find it a good starting point for their quest. Bue to the nature of the information on the printout my spam filter will not pass it and I will never receive your very important input to fellow long distance shooters. INSTRUCTIONS SAMMI Sez All dimensions shown in drawing are from "ANSI/SAAMI Z299.4 – 2015 American National Standard Voluntary Industry Performance Standards for Pressure and Velocity of Centerfire Rifle Ammunition for the Use of Commercial Manufacturers American National Standards Institute . . ." copies are available on the internet as well as for 22 rim fire, centerfire pistol and other cartridges you may need. You can enlarge the picture on right by clicking on it. I suggest you start with a minimum three new boxes ( 60 not 300) of the cases you are using or will be using. Any less and you will have less of a weight spread to provide for analysis of the correct value of C0 and A0, A1. You should expect to require at least three runs with the suggested charges to narrow in. Fortunately each run requires less cases since you will be weeding out cases that show out of the lot characteristics. A lot number on abox is almost meaningless to a uniformity of product. In the process of selecting ICs for a NASA program I went to Tesxas Instrument in the sixties. A learned a lot about what makes up a lot. I will give the trailer to the big picture of two kinds of lots we may be dealing with two examples. The first example is the most common lot: it is the CYA lot where manufacturer has twenty machines with five operators. Each machines turn out thirty eight thousand chocolate covered goobers. The machines will operate on one lot number until one of the lots of sugar runs out and is an other lot of sugar but will not change ifone of the operators shuts down a machinw that was adding 8% more of yetty juice than therecipecaledfor. He will adjust or replace a faulty part and the lot goes on. This type of lot is to allow callbacks and recalls if an ingredient was tainted in some matter that would cause a law suite. This also applies to automtive product. But sometimes their lots go across makes and models for months and some times for years. But when a bad component is found the recall can be specific to the dates and models requiring the recall and not the years that the part was in use. just one lot? A long time, maybe fifty years, ago in Dallas I was taken an IC company invited me to see where they produced the Ics I was using in one of my designs. It was like a sifi movie. Engineers and techs covered in white with masks and booties covering their shoes. To enter the place you had to walk through two doors and between the doors you received a complete air shower and put on your white bunny suit so you could enter the rook where you could see the operatiomn through a thick glass window. Inside thatroom were the thin silicone crystal wafers traqnsformed into My Waferthe Integrated circuits we see today in their little gray catapiller packages into wich they went a long way and days down the process. The wafers were covered in alight sensetive slime and placed under an esxtreemly accurate projector which laid out "photographically" the millions of transistor, diodes and resistors into this wafer. This processwas repeated as many times as the specific IC design required.Finally it wasin a special oven and cured with thousands of brothers, sister, and relatives of all types and designs. My wafer, they gave me one, t was about two inches in diameter and on it was deposited a material on which was focused a pattern of circuits much like a photo development process. I think this was repeated many times and the final product was a wafer with millions of transistors forming thousands of integrated circuits, which wouldbe when cut and mounted thelinear amplifier used in some larger assembly. Ow here isthesecret to what a lot is: A computer will, after the circuits are formed and functional, test each one for a specdific set of requirements. The best ones were assigned as a lot and after cutting the wafer went to the military. The next best tested circuits on the same wafer went to the industries requiring a higher standard of IC but a little less performance and acheaaperprice. The next lot was destine for normal electrical commercial applications like radios, TVs and the like where efficiency was less important than price. The last of the wafer that was deemed operational enough to do someting for somebody was designated as alot for the electrroic houses selling to the public. So that one wafer had a lot number but from it was drawn many lots for sale. They were all the same lot becdause one technician did the wafer proccess and all the circuits were the same photo graphic patern, the same light,the same oven time.Everythig wathe same; but it could not be the samebecause all were not equal in performance, cost, or use. So what the program isdoing is checking the response of each case to minute changes in charge weight to see which all bend the same way when the wind blows. First you need a way of permently marking the "Out of the Box" weight of each case so canidentify what charge to usefor each individual case based on the results of this program. I use a Dremel type tool with dental burrs I get free from my dentist. They have some really great diamond burrs that cut brass faster than you can react so you better practice for a while on old pick up brass before your attempt to engrave any new cases. Now set out the cases in order of their weight in 0.1 grain columns. Look at the various places in the row of cases where the number Select your cases by weight starting at the lowest end of the weights and select two cases for the first run. Then select groups of two cases from your case lot spaced about every 0.3 grains apart until you reach the highest weight cases where you will select the last two cases for your first test. If you don't have at least 30 cases. in groups of two cases each you have a very small number of cases to work with and should consider getting more cases to provide you sufficient cases to get a good statistical sample. Fireform the cases using any method you normally use. I use a scoop holding seven to eight grains of Red Dot for my 338 Lapua brass. Less would be appropriate for the non-magnum 30 caliber cases. After the charge fill the cases with Cream of Wheat (COW). NOTE: NEVER USE cornmeal. Some how corn meal makes crusty bread inside the cases which may be impossible to remove. Then shake and pack the cases to insurers shoulders are full of the COW about one half up the neck of the case.topping off the COW as the shaking and packing process works the COW under the case shoulder. Always keep the neck half during the filling process. Finally pack it with a wooden dowel and an soft hammer. Top each case with a wad of tissue paper hammered into the case neck to hold the COW compressed in place. Be careful not to deform the neck. Run the cases through your neck sizing die to besurethey will chamber to insure your hammering did not distort the case necks These can be fired safely into a garbage pail with a few sheets of crumbled up newspaper inside but I only did this once inside. The amount of COW dust took hours to clean off my machine shop took hours. It was even inside my closed tool chests. Outside is better if your neighbors can take the muzzlle blast. It will sound like reall ive ammo going off. Ear protection and goggles along with some kind of cling wrap covering your scope is required for both inside and outside the house. The rifle bore must be cleaned and oiled after this fireforming. what in a lot for me.html;otes