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Post by bigdaddyg on Oct 30, 2010 21:08:51 GMT -5
just picked up my dads powder scale and cleaned off 30 years of dust they are OHAUS 505 scales and I have nothing to check them with is there an everyday item (A COIN) or something I can check them with I have ran them useing a hornady 240 gr bullet and ther right on ?
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Post by shooter on Oct 30, 2010 21:13:07 GMT -5
just picked up my dads powder scale and cleaned off 30 years of dust they are OHAUS 505 scales and I have nothing to check them with is there an everyday item (A COIN) or something I can check them with I would take a bullet 250gr or 300 gr bullet and check it with that.I don't no if this is the best way.someone correct me if i wrong.
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Post by tar12 on Oct 30, 2010 21:17:51 GMT -5
Check a bullet on a friends scale and compare...
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Post by artjr338wm on Oct 31, 2010 12:09:25 GMT -5
If you have a Cabelas or B-Pro near you, you should be able to buy a set of scale check weights OTC. Any one who owns and uses any type of scale, be it digital or a balance beam type should have a set of check weights. We are talking about spending less than $25 to insure your safety, especially that of your eye sight, because IMHO your eyes are the part of you most at risk for a traumatic injury in the event of a powder induced catastrophic fire arm failure, and unlike fingers and limbs, eyes CAN NOT be re-attached and can not be replaced with a prosthetic. Something to think about.
I personally have three BB scales, a RCBS 5-0-5, a RCBS 10-10, and a Redding. I use the 10-10 100% of the time and use the 5-0-5 to DBL check the 10-10 and my PACT digital as well. FWIW the Redding is a POS compared to either of the RCBS scales.
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Post by wilmsmeyer on Oct 31, 2010 13:51:43 GMT -5
Bullets this large and mass produced can vary .5 - 1 grain. Still, weighing a 300 grain bullet will be fine for calibrating your scale IMO. If your scale is off 1 grain on a big 300 gr bullet, it will only be off 2 or 3 tenths on a charge weighing 50 grains.
JMO
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Post by Richard on Oct 31, 2010 18:23:33 GMT -5
Just take three or four different bullets of stated weight and weight them? If they all come within a tenth or two, that is fine for SM powder weights. Due to variations in weight with these non-match quality bullets we shoot, condition and temperatures in our barrels, you will not notice any difference if you load is 60.0 or 60.2 gr.. Just shoot precisely measured loads over any of the over counter chronographs and you will be getting velocity reading that can vary 25 and 50 fps or more. And even if your scale is off a tenth or two, it will weight every charge the same which is more important. Richard
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Post by tdillinger on Oct 31, 2010 18:47:28 GMT -5
What Richard said but with more enthusiasm.
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Post by bigdaddyg on Oct 31, 2010 20:10:27 GMT -5
Thanks guys Ill be running book loads to start and Ill pack the scales off to the gun shop to have them checked look like new but better safe than booom
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