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  #1  
Old 04-14-2017, 06:58 PM
doubs43
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Tale of the Scale - A bit Long



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A recent thread I started on why I use a balance beam scale created a lot of interesting replies from knowledgeable reloaders. One experienced long range shooter noted that most balance beam scales will have variances of minus .1 to plus .1 grains or greater giving a margin of as much as .2 grains or more between loads. That much variation is too much for accurate long range shooting.

On his suggestion I've purchased a Gempro 250 electronic scale with accuracy of .02 grains... that's 2/100th of a grain. The Gempro allows the reloader to be exact to a degree that the balance beam scale doesn't. The Gempro uses a system that stabilizes better than the average electronic scale and is much more sensitive.

Once I had set up the Gempro 250 scale, allowed it to stabilize and calibrated it, I was anxious to compare it to the RCBS 10-10 balance beam scale to see just how much variation the 10-10 was giving me. I set up the 10-10 as I normally would and weighed out 10 loads of 42.7 grains of H-4895 with the same care I normally take.

Fully expecting as much as .2 grains variation in my loads, I was very surprised at the results. Three were dead on, one was 42.68 and two were 42.76. The rest were 42.72 or 42.74 grains. The extreme spread of all my loads was .08 grains or 8/100's. It was very easy to adjust the loads to be exactly 42.70 grains.

While I now intend to use the Gempro 250 to get exact loads each time, it's nice to know that I have a backup balance beam scale that will keep me within .1 grains as long as I'm careful.

I also want to thank MikeinCO for his great advice to get the Gempro 250.

Last edited by doubs43; 04-14-2017 at 07:40 PM.
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  #2  
Old 04-17-2017, 05:03 PM
LongRange1

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if you ever want more accuracy out of your beam give scott parker a call and have him tune it up for you...he is THE man when it comes to scales.

with that said i just upgraded several things on my bench the scale being one of them.

i went right past the gempro because i figure if im spending the money i want something thats going to cut time at the bench and this set up does just that...its basically a RCBS charge master on steroids LOL....the draw back is..IT IS NOT CHEAP!!

http://www.affordablescales.com/and/...i#.WPUq3vnyvIU

the auto trickler...

http://www.autotrickler.com/

i know a few guys using the 120i with a little dandy trickler and they say they love the set up so with the auto trickler and the other up grades ive made i should be able to cut a bunch of time spent at the bench.

Last edited by LongRange1; 04-17-2017 at 05:05 PM.
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  #3  
Old 04-17-2017, 08:02 PM
mikeinco2014

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yep that is THE scale for most long range shooters, tho a few do go to the .01 , next step and cost up.

i do not get in a rush so i have passed on the auto trickler.
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  #4  
Old 04-17-2017, 09:04 PM
LongRange1

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I'm not in a rush per say but I am trying to cut time at the bench.

I'm also probably a little more anal about my loading then most so the time is self inflicted so any time I can cut is good.


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Old 04-17-2017, 09:27 PM
mikeinco2014

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the match i shot on sunday was 875 to 2023 yards.
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Old 04-17-2017, 09:55 PM
gkcs

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Quote:
Originally Posted by LongRange1 View Post
if you ever want more accuracy out of your beam give scott parker a call and have him tune it up for you...he is THE man when it comes to scales.

with that said i just upgraded several things on my bench the scale being one of them.

i went right past the gempro because i figure if im spending the money i want something thats going to cut time at the bench and this set up does just that...its basically a RCBS charge master on steroids LOL....the draw back is..IT IS NOT CHEAP!!

http://www.affordablescales.com/and/...i#.WPUq3vnyvIU

the auto trickler...

http://www.autotrickler.com/

i know a few guys using the 120i with a little dandy trickler and they say they love the set up so with the auto trickler and the other up grades ive made i should be able to cut a bunch of time spent at the bench.
I didn’t do the jump straight to an expensive scale like you but bought a Gempro 250 first. Have now replaced it with an A&D Fx300i. Would have got the 120i but the supplier only had the Fx300i in stock.

Brilliant scales. Very fast. Has also shown up how variable my Chargemaster is. Your auto trickler looks nice.

I batch sort my brass by weight and used to hate the chore. Weigh the case, write down value, enter all values into spread sheet, manipulate the date. Took ages. With the A&D I connect it straight to my desktop PC and as fast as I can weigh cases it inputs the values into an Excel spreadsheet all ready for sorting.

I shoot long range F Class.

Last edited by gkcs; 04-17-2017 at 10:02 PM.
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  #7  
Old 04-17-2017, 10:15 PM
LongRange1

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Quote:
Originally Posted by mikeinco2014 View Post
the match i shot on sunday was 875 to 2023 yards.


Nice!!

1845yds is my longest shot and impact...I stopped chasing the distance and got more into the tactical/PRS type matches and still shoot 1000yd F-open.



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  #8  
Old 04-17-2017, 10:33 PM
LongRange1

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Originally Posted by gkcs View Post
I didnít do the jump straight to an expensive scale like you but bought a Gempro 250 first. Have now replaced it with an A&D Fx300i. Would have got the 120i but the supplier only had the Fx300i in stock.

Brilliant scales. Very fast. Has also shown up how variable my Chargemaster is. Your auto trickler looks nice.

I batch sort my brass by weight and used to hate the chore. Weigh the case, write down value, enter all values into spread sheet, manipulate the date. Took ages. With the A&D I connect it straight to my desktop PC and as fast as I can weigh cases it inputs the values into an Excel spreadsheet all ready for sorting.

I shoot long range F Class.


I've done just about every sort of prep you can think of and have kept what actually showed results down range and tossed the rest aside...like I say above I'm more into tactical/PRS but still shoot some F-class.

If I was a bench rest shooter or like mikeinco above I'd be doing a lot of the things I tossed like sorting bullets,weighing case with H2o and sorting,trimming meplats and tipping bullets etc.


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  #9  
Old 04-18-2017, 12:37 PM
doubs43
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Fellows, thanks for all the great replies. I value the information that experienced shooters are willing to provide. I'm in my 70's but still willing to learn when my own experience at a particular discipline is limited.

Time isn't an issue for me so the GemPro 250 is fine. I use an auto-scale to run off a close load and then top it off on the GemPro.

The longest distance our range offers is 350 yards. I wish it were longer but shooting good groups at 350 can be a challenge with the wind currents we have. The winds were so severe this past Saturday at our match that high score at 200 yards was a 244-4X. My 242-5X placed third behind a 244-3X.

Our range is below. The hills and valleys, much of them unseen in the picture, cause the wind currents to move in various directions all at the same time. It does make things interesting.

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Old 04-18-2017, 05:24 PM
LongRange1

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beautiful area doubs....id get claustrophobic with all those tall green things...i think there called trees??? LOL J/K!!

heres part of our range out to 850yds...the public side goes out to 970yds and we have a F-class range out to 1000yds...plus pistol pits ect...



this is where i shoot near my house...about 10mins from my drive way....yardage is pretty much unlimited....

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  #11  
Old 04-18-2017, 06:08 PM
mikeinco2014

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is that a mcmilian stock in urban camo ?
a5 ? or ??
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  #12  
Old 04-18-2017, 06:11 PM
mikeinco2014

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this is mine
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  #13  
Old 04-18-2017, 07:23 PM
LongRange1

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Originally Posted by mikeinco2014 View Post
is that a mcmilian stock in urban camo ?

a5 ? or ??


Yes to all...with the terry cross hardware...




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  #14  
Old 04-18-2017, 07:24 PM
LongRange1

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this is mine


Mike that's a nice rifle what cal and what action?


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  #15  
Old 04-18-2017, 08:11 PM
mikeinco2014

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stiller tac 300 commercial version of the stiller mk 13 action used on the SEAL mk 13 sniper rifle. mine is a loose copy:
lija mk13 mod 7 bbl blank, in stock,
mcmillian a5 stock with adj cheek and lop spacers,
stiller tac300 action with 20moa rail,
stiller bottom metal with ai mag,
thunderbeast 9" suppressor,
armegeadon heat shield on the surpressor
a timney trigger as i am a dealer.
5.5-22x56 nf
300 win mag...sorta****
some notes to 300 wm owners.....
DO NOT TRY THIS AT HOME.
the mk 248 mod 1 ammo is not your average 300 wm ammo.
its COAL is 3.50 vs std 3.340
its pressure limit is 68,100 vs the 64000 of std wm. so plus p
( they adjust powder volume to provide desired vel)
with the bullet(220 sir mk) it will chamber in std chambers,
they do have a special reamer, but i do not know how SPECIAL.

currently shooting about .6 at 3000 fps


say mk 13 mod me
Quote:
Originally Posted by LongRange1 View Post
Mike that's a nice rifle what cal and what action?


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Last edited by mikeinco2014; 04-18-2017 at 08:16 PM.
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