JMayo
Silver $$ Contributor
MINE IS ! LMBO ! PERFECT !Not now- we still think these scales are exact!!
MINE IS ! LMBO ! PERFECT !Not now- we still think these scales are exact!!
seWhat's wrong with the RCBS or Lyman check weight sets at around $40? I've checked my set against a good calibrated lab scale and found they were too close to worry. They are grain weights and by combining weights you can make up a weight very near the load you intend to use. If you want to be using a powder load of 36.5gns just make up the exact weight (20,10,5,1,.5) with the check weights and make sure your scale reads zero and repeats at that weight. In fact, you don't even need any numbers on your scale.
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Hi Alan. A customer of mine a few years back dropped off his Redding scale and a set of RCBS check weights. I finished his scale and proceeded to test the check weights. The two 20 grain check weights were .2 grains apart from each other.What's wrong with the RCBS or Lyman check weight sets at around $40? I've checked my set against a good calibrated lab scale and found they were too close to worry. They are grain weights and by combining weights you can make up a weight very near the load you intend to use. If you want to be using a powder load of 36.5gns just make up the exact weight (20,10,5,1,.5) with the check weights and make sure your scale reads zero and repeats at that weight. In fact, you don't even need any numbers on your scale.
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Hi Alan. I had a customer
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Hi Alan. A customer of mine a few years back dropped off his Redding scale and a set of RCBS check weights. I finished his scale and proceeded to test the check weights. The two 20 grain check weights were .2 grains apart from each other.
Scott
Sorry, I wasn’t clear. There were two twenty grain check weights in his set. They were .2 grains apart from each other.Once the bisparity is known, what difference does it make? 'Trust, but verify.'
Hi Alan. A customer of mine a few years back dropped off his Redding scale and a set of RCBS check weights. I finished his scale and proceeded to test the check weights. The two 20 grain check weights were .2 grains apart from each other.
Scott
You must not be shooting at 1000 yards,because if you were you would Know 50 fps difference shell to shell makes a BIG Difference,thats why some people get Large Vertical Groups.If you don't Believe it ,GO shoot at 1000 yards.I shoot thousands of rounds at long distance.You want ES and SD in the Single Digits if you canNot if your in the middle of a node. It's all about tune and not velocity differences. Matt
I have shot over 30,000 rounds at 1000 yards in testing and matches. Many times the load with lowest ES is not the best load. As an example, I had a Dasher that would shoot in the zeros and low ones at 100 yards and the ES was 2 and three. The best that gun and load ever did in competition was a big 13 inch at 1000, all vertical. Another load in that gun had ES of 10 to 12 and that load would shoot 4 inches when conditions allowed. This is why they shoot ladders at distance. I saw this happen with many guns over the last 18 years of competition.You must not be shooting at 1000 yards,because if you were you would Know 50 fps difference shell to shell makes a BIG Difference,thats why some people get Large Vertical Groups.If you don't Believe it ,GO shoot at 1000 yards.I shoot thousands of rounds at long distance.You want ES and SD in the Single Digits if you can
Exactly.Barrel compensation and where the bullet leaves the barrel is important.
Did you check it on the scale you just repaired? That won't work!!!Hi Alan. I had a customer
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Hi Alan. A customer of mine a few years back dropped off his Redding scale and a set of RCBS check weights. I finished his scale and proceeded to test the check weights. The two 20 grain check weights were .2 grains apart from each other.
Scott
What class weight is your 30 gr weight? I have a A&D FX120I. They sent me a ANSI Class 7 weight to calibrate with. Not good enough. I bought a class 1.the thread got me curious so I gathered up all the check weights I have accumulated with various inexpensive scales over the years and I have 2 - 10 gr, 1 -20 gr, 1-30 gr, 1- 50 gr, and 1 -100 gr. I calibrated my fancy $225 dollar Tree 123 with the 30 gr and came up with the following measurements. Looking at the cumulative results I think the problem is the scale weighs low. The 100 gram looks to be the farthest off. Bear in mind that .1 grains is .0064 grams
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Did you check it on the scale you just repaired? That won't work!!!
Are you being serious?Did you check it on the scale you just repaired? That won't work!!!
What class weight is your 30 gr weight? I have a A&D FX120I. They sent me a ANSI Class & weight to calibrate with. Not good enough. I bought a class 1.
DUH,if your trying to weigh your 45.25 grains,how do you know your scale is Reading Correctly;With Out Checking the Accuracy of your scale w/ precision scale weights ?? If your shooting at 1000 yards or farther,it makes a Difference,If your trying to hit 55 gallon drum at 100 feet it Doen't.
I have shot over 30,000 rounds at 1000 yards in testing and matches. Many times the load with lowest ES is not the best load. As an example, I had a Dasher that would shoot in the zeros and low ones at 100 yards and the ES was 2 and three. The best that gun and load ever did in competition was a big 13 inch at 1000, all vertical. Another load in that gun had ES of 10 to 12 and that load would shoot 4 inches when conditions allowed. This is why they shoot ladders at distance. I saw this happen with many guns over the last 18 years of competition.
Here is an example of a load for my 338 Lapau IMP. This gun has a 1.450 diameter barrel and is 36 inches long. It is glued into a block and built just like my competition guns. The bullet was 300 grain Berger Elites and the loads were 102 grains of RE33 and averaged 2932, 103 grains averaged 2993 and 104 grains averaged 3042 and I shot them just like a match. I ran them as fast as I could to beat conditions. The rounds were 4 shots each and I colored the bullets so I could tell which load hit where. The total group was 6.5 inches for 12 shots and 11 of them was in 4.25 inches. Barrel compensation and where the bullet leaves the barrel is important. While the load varied almost 50 FPS average with a grain of powder, they shot to almost the same exact point of aim at 1000 yards.
It is sometimes, all about being in the middle of a node. That way temperature or changes in atmospheric conditions keeps the load shooting good. This is why scale check weights dont need to be exact. As long as your using the same weight to check the scale. You work up the load to find the accuracy node. Matt
Sorry, I wasn’t clear. There were two twenty grain check weights in his set. They were .2 grains apart from each other.
As a heart attack. Worked in aerospace metrology for 37 years and have seen engineers do some dumb stuff with test equipment. If they even knew how to use it.Are you being serious?
Fair enough. I’m very familiar with the concept of pathway dependency when it comes to scientific/technical data. Having a known, verified reference is an assumed operating practice with me.As a heart attack. Worked in aerospace metrology for 37 years and have seen engineers do some dumb stuff with test equipment.