RSCB 5-10 Scale Parts Question

[frjeff]

Have this scale. It is missing the little nylon screw that is used to hold the micrometer poise in place. Can it be used without the screw?

RCBS no longer has parts for this old model. Can anyone share the screw specs that I might find one somewhere?
thanks ……..

 

[PhilC]

Sure can, all it does is lock the barrel. Set it where you want and press on. Might be able to find a brass screw at a hardware store if you really feel the need.

 

[frjeff]

Sure can, all it does is lock the barrel. Set it where you want and press on. Might be able to find a brass screw at a hardware store if you really feel the need.

Thank you kind sir. So, in and of itself it has little to no impact on weight? Still will zero, etc.?

 

[JFrank]

Thank you kind sir. So, in and of itself it has little to no impact on weight? Still will zero, etc.?

you’ll need to find a similar weight screw or adjust the counter weight in the pan.

 

[frjeff]

you’ll need to find a similar weight screw or adjust the counter weight in the pan.

Thanks.

 

[BoydAllen]

Level the scale frame. I have a good cast iron head combination square that has a good level. Set the scale to zero and adjust the pan holder weight until the scale indicates perfect balance. You should be fine.

 

[frjeff]

Level the scale frame. I have a good cast iron head combination square that has a good level. Set the scale to zero and adjust the pan holder weight until the scale indicates perfect balance. You should be fine.

Thanks.
New to all of this, so what do I use to add weight to the pan holder. Something like shotgun shot?
Thank you.

 

[6MMsteve]

Thanks.
New to all of this, so what do I use to add weight to the pan holder. Something like shotgun shot?
Thank you.

yes that will work you will need to halve and qtr them, can use plastic beads for the final tune...but there maybe others chime in that have much better ways, it's going to be sealed so a mix of lead and plastic may be ok,

 

[frjeff]

yes that will work you will need to halve and qtr them, can use plastic beads for the final tune...but there maybe others chime in that have much better ways, it's going to be sealed so a mix of lead and plastic may be ok,

Thank you.

 

[SSL]

Thanks.
New to all of this, so what do I use to add weight to the pan holder. Something like shotgun shot?
Thank you.

@6MMsteve is right. I had to replace the pan on my old Ohaus severalyears ago and it wasn't perfectly the same weight as the lost one. Used shotshell shot in whole pieces, quartered and even finished with 'lead dust' from sawing a cast bullet and adding minute amounts of the resulting dust to perfect the balance.

 

[6MMsteve]

Thank you.

after you get it set, take a bullet say 100 grs or 150 and use it for your master wt that way you will always know where your scale is, that you know your safe and the scale is working, I use a 150 smk and it goes to the same spot every time just a tad over so I know I'm good, and weigh with just the pan set at zero, for your zero zero wt...keep the bullet in a little case next to your scale for reference, I do 2 weighs zero zero, and the 150 gr bullet...zero zero will be your main wt.. this is where your working on your new pan..I confused myself

 

[frjeff]

after you get it set, take a bullet say 100 grs or 150 and use it for your master wt that way you will always know where your scale is, that you know your safe and the scale is working, I use a 150 smk and it goes to the same spot every time just a tad over so I know I'm good, and weigh with just the pan set at zero, for your zero zero wt...keep the bullet in a little case next to your scale for reference, I do 2 weighs zero zero, and the 150 gr bullet...zero zero will be your main wt.. this is where your working on your new pan..I confused myself

 

[frjeff]

Got it
Thanks

 

[BoydAllen]

Thanks.
New to all of this, so what do I use to add weight to the pan holder. Something like shotgun shot?
Thank you.

For fine adjustments whole shot are coarser than I like. I cot little pieces of plastic off of the corner of an expired credit card, putting then in the pan until the scale is perfectly zeroed with its frame level, then I put the pieces in with the shot in the pan holder.

 

[frjeff]

For fine adjustments whole shot are coarser than I like. I cot little pieces of plastic off of the corner of an expired credit card, putting then in the pan until the scale is perfectly zeroed with its frame level, then I put the pieces in with the shot in the pan holder.

Great idea.

 

[Webster]

after you get it set, take a bullet say 100 grs or 150 and use it for your master wt that way you will always know where your scale is, that you know your safe and the scale is working, I use a 150 smk and it goes to the same spot every time just a tad over so I know I'm good, and weigh with just the pan set at zero, for your zero zero wt...keep the bullet in a little case next to your scale for reference, I do 2 weighs zero zero, and the 150 gr bullet...zero zero will be your main wt.. this is where your working on your new pan..I confused myself

For a standard to check my scale I made a piece of SS sheet metal cut and sanded to about 32 grains. Weighed it on a lab scale to 4 decimals. Engraved the wt. on it. I wanted a wt. about the same as a typical powder charge. A SS washer would work fine. Been using it for over 40 years. I see guys on this website buying very expensive Bureu of Standard weights. It doesn't matter if the powder weighs 33.5 and it's actualy 33.65. If the wt. checks always the same that's all that matters.

 

[Rsadams]

Check eBay stuff comes up all the time... Even if you find a stock nylon screw you will probably still have to recalibrate the scale...

 

[Murray Brook]

I use lead shot to zero my scale and when I get slightly over just rub one of the shot ball on a file till you get the weight needed to zero. JMW

 

[hpshooter]

I foumd a plastic screw at an industrial fastner house that fit the weight. My old fumble fingers would invariably bump into the weight and change the setting by a .1 or so. Too risky IMO to chance especially if you are loading to the warm side or older weaker actioned firearms.

 

[6MMsteve]

For a standard to check my scale I made a piece of SS sheet metal cut and sanded to about 32 grains. Weighed it on a lab scale to 4 decimals. Engraved the wt. on it. I wanted a wt. about the same as a typical powder charge. A SS washer would work fine. Been using it for over 40 years. I see guys on this website buying very expensive Bureu of Standard weights. It doesn't matter if the powder weighs 33.5 and it's actualy 33.65. If the wt. checks always the same that's all that matters.

I concur safe is safe...if a bullet isn't safe then uno, sounds like you r safe as safe can be. I like the sanding pc it's cool