I use little yellow plastic measuring cups from a long box that the label faded from. I follow the instructions and I make groups of 1.5" at 300m. Caliber is 6mmBR, so your result with 40 may not be similar. If you demand better accuracy from a short barrel with moving parts, of course time is best spent weighing meticulously.
Weighing powder charges
- Thread starter NorthernPF
- Start date
Throw consistency has a number of variables, powder type (ball, flake, extruded) being the big one, but also how you do the actual throw.. eg do you hit the return stop with the same force after each throw? (hitting the stop harder will "settle" the powder and result in a heavier charge).. Once set, a powder measure should be consistent, if your throw technique is consistent, but some are notorious for the set screw loosening off and the amount of powder changing..
Armored Metal
CGN frequent flyer
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You have a LEE Precision powder mesure kit. I have the same.
- Location
- Western Manitoba
You might be interested to read up on the Optimal Charge Weight (OCW) concept. The main point to that exercise is to identify the node, or range of powder weights, where the point of impact is not going to change, even if the powder weight varies by +/- .2 or .3 grains. Weighing out 70 plus grains to the .1 grain for hunting loads doesn't really make sense.
I mostly just use the Chargemaster for everything rifle related now. Its not because its fast, because it isn't. It isn't because I believe that a tenth of a grain of powder is going to make or break a load when its burning 80 or 90 at a time. Its not even because I'm convinced that weighed charges are a more accurate way of determining how much powder is in the case. Heck, when I can prove that a powder measure will throw progressively lighter charges as a keg of powder dries out, doesn't it also prove that the charge I weigh today isn't the same volume as the one I weighed two months ago? Sensing that the answer will just make me unhappy, I just refuse to think about it.
I just use the Chargemaster because its handy. In the time it takes to set a measure, and find the trickler and scale I can be half done. For working up loads with 10 of this and 10 of that the convenience is hard to beat.
I just use the Chargemaster because its handy. In the time it takes to set a measure, and find the trickler and scale I can be half done. For working up loads with 10 of this and 10 of that the convenience is hard to beat.
Among the many firearm related achievements of Warren Page, is winning the National Match, in bench rest shooting, nine times.
So I presume he knows something about prescission shooting.
In his book, The Accurate Rifle, he states they never weighed every charge, but just set their micrometer type powder measure and loaded away, for world class 100 yard bench rest competitions.
So I presume he knows something about prescission shooting.
In his book, The Accurate Rifle, he states they never weighed every charge, but just set their micrometer type powder measure and loaded away, for world class 100 yard bench rest competitions.
For Pistol, the Dillon 550B is very consistent. I weigh one out of 100 with an RCBS Rangemaster. Same with "bulk rifle" reloading. For working up a new recipe, I do everything by hand on a single stage Lee Breech press. These aren't reloaded, so much as "lovingly handcrafted rounds". 
