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Beam Scale Test weights
Posted: Mon Jun 09, 2014 3:30 pm
by Mike357
I'm just about to start reloading for a new semi custom rifle that I have treated myself to but I've gone a bit mental on the scope side of things so instead of buying an RCBS 1500 Combi, I am going to use my Redding scales and probably buy a Targetmaster for now. I want to check the accuracy of my scales, so does anybody know where I can get check weights for them?
Re: Beam Scale Test weights
Posted: Mon Jun 09, 2014 3:44 pm
by saddler
...one has a spare set from an older RCBS Chargemaster 1500 which may be up for grabs
Re: Beam Scale Test weights
Posted: Mon Jun 09, 2014 3:52 pm
by Mike357
PM me some details please
Re: Beam Scale Test weights
Posted: Mon Jun 09, 2014 6:01 pm
by 1066
Re: Beam Scale Test weights
Posted: Mon Jun 09, 2014 7:03 pm
by bigfathairybiker
Try new coins.
They weigh exactly what the mint says they weigh.
A variety to choose from and the 20p weighs exactly 5.0 grams.
Mark
Re: Beam Scale Test weights
Posted: Mon Jun 09, 2014 7:41 pm
by 1066
bigfathairybiker wrote:Try new coins.
They weigh exactly what the mint says they weigh.
A variety to choose from and the 20p weighs exactly 5.0 grams.
Mark
Coins or bullets are ok to use as a rough guide but not really accurate enough if you really want to know what your scale is doing.
I've just weighed 5 x 20 pence pieces
77.08 grains
76.44
77.62
75.84
77.00
Re: Beam Scale Test weights
Posted: Tue Jun 10, 2014 7:42 am
by Meaty
I worked for a company for years that made, amongst other things, drug delivery and dosing units for the medical industry. They had a lab for accurately measuring the small doses (methadone
) during the commissioning stages and as I was a commissioning engineer I made good use of the scales. I now have a nice set of stainless steel washers etc.varying in size from 4mm-12mm all engraved with their exact weights safely tucked away in zip-lock bags.
Might be worthwhile trying to find a local company that has a similar set-up or even the science labs of a local high school/college.
Re: Beam Scale Test weights
Posted: Tue Jun 10, 2014 10:00 am
by pnuk
1066 wrote:bigfathairybiker wrote:Try new coins.
They weigh exactly what the mint says they weigh.
A variety to choose from and the 20p weighs exactly 5.0 grams.
Mark
Coins or bullets are ok to use as a rough guide but not really accurate enough if you really want to know what your scale is doing.
I've just weighed 5 x 20 pence pieces
77.08 grains
76.44
77.62
75.84
77.00
Wow, very surprised at that spread of weight. Wonder if that's true of sovereigns etc? Presumably they are spot on in terms of weight?
Re: Beam Scale Test weights
Posted: Tue Jun 10, 2014 10:55 am
by bigfathairybiker
Sounds about right as new coins are specified only to one decimal place in grams which is about 1.5 grains.
Mark
