I recently bought a Lyman Scale Weight Check Set that comes in a nice little box with a pair of stainless steel tweezers and 10 weights.
Aluminum: 0.5gr, 1gr, 2gr (x2), 5gr
Stainless steel: 10gr, 20gr (x2), 50gr and 100gr
I was curious as to how accurate these weights are since I bought them to check my RCBS ChargeMaster and RCBS Powder Pro digital scales. I weighed each one twice on a Mettler XP504 (a $10,000 lab grade digital scale) and was very impressed with the results.
0.5gr > 0.0325g = 0.50gr
1gr > 0.0666g = 1.03gr
2gr > 0.1290g = 1.99gr
2gr > 0.1293g = 2.00gr
5gr > 0.3237g = 5.00gr
10gr > 0.6486g = 10.01gr
20gr > 1.2968g = 20.01gr
20gr > 1.2964g = 20.01gr
50gr > 3.2376g = 49.96gr
100gr > 6.4797g = 100.00gr
This set only costs about $35 so I wasn't expecting great accuracy but these check weights are more than accurate enough as can be seen by the actual weights in grains shown to two decimal places.
Aluminum: 0.5gr, 1gr, 2gr (x2), 5gr
Stainless steel: 10gr, 20gr (x2), 50gr and 100gr
I was curious as to how accurate these weights are since I bought them to check my RCBS ChargeMaster and RCBS Powder Pro digital scales. I weighed each one twice on a Mettler XP504 (a $10,000 lab grade digital scale) and was very impressed with the results.
0.5gr > 0.0325g = 0.50gr
1gr > 0.0666g = 1.03gr
2gr > 0.1290g = 1.99gr
2gr > 0.1293g = 2.00gr
5gr > 0.3237g = 5.00gr
10gr > 0.6486g = 10.01gr
20gr > 1.2968g = 20.01gr
20gr > 1.2964g = 20.01gr
50gr > 3.2376g = 49.96gr
100gr > 6.4797g = 100.00gr
This set only costs about $35 so I wasn't expecting great accuracy but these check weights are more than accurate enough as can be seen by the actual weights in grains shown to two decimal places.
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