Cas City Forum Hall & CAS-L
CAS TOPICS => CAS FAQ => Topic started by: N40W111 on March 27, 2008, 11:53:38 AM
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Hi all...
New to CAS and just getting my guns. I already have a Cimarron P Jr. in .38 and a Marlin 1894C in .357. I have a little Lee Loader (the little red box unit) in .38 special that I want to use to start my first reloadings. I also have a box of 125 LRNFP cast bullets that I want to use.
Here's the question:
I also bought a bottle of Trail Boss powder but I can't seem to find a reliable data sheet for this powder using Lee dippers. I'm kinda thinking that the .7 dipper with the 125 gr. might work but don't want to blow the gun. Do any of you have a conversion chart for Lee dippers using Trail Boss? Will I get an acceptable load with the above recipe?
Thanks.
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Never used "Trail Boss" in my reloads. Mr. Lee in his book "Modern Reloading Second Edition" doesn't list "Trail Boss"
in his powder selections for your particlar loading. However Hodgedon does. Their 2008 Annual Manual Reloading has it listed on pg.161. I suggest you buy a scale either a balance type or electronic and weigh your charge(s).
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I also bought a bottle of Trail Boss powder but I can't seem to find a reliable data sheet for this powder using Lee dippers. I'm kinda thinking that the .7 dipper with the 125 gr. might work but don't want to blow the gun. Do any of you have a conversion chart for Lee dippers using Trail Boss? Will I get an acceptable load with the above recipe?
Thanks.
I have used the .7 dipper for .38 specials under a 130 grain bullet, and a good crimp using Lee Factory Crimp Die.
Loading data from Hodgson lower level specifies 3.0 grains. The .7 dipper comes out a little higher, see the calculations below, and my scale confirmed this.
TB as it has been termed "little termite doughnuts" is hard to strike off of a dipper, and your loads may vary by as much as +/- .1 grain. Now saying that, my friend and I have hit every thing the barrel was pointed at. It is good for the CAS shooting. Used this load in his Remington Conversions, and in a Rossi lever action with no ill effects. He has even scored well shooting in a pistol competition for score (10 - 15 yards).
Also known as we ain't out shooting the quality of this load!
Here is the VMD and calculation information for Trail boss: (found here: http://www.thehighroad.org/archive/index.php/t-220900.html)
IMR Trail Boss VMD is .2172
Multiply charge in grains by VMD for volume in CC
Example: 3 x .2172 = 0.6516
Your 0.7 CC dipper will get you about 3.22 grains of TB.
Full calculation is .7 dipper / .2172 TB VMD = 3.2228360957642725598526703499079 grains
Trail boss reloading data:
http://www.imrpowder.com/trailboss.html
On Lee Precision's website, VMD data:
http://www.leeprecision.com/cgi-data/instruct/VMD'S.pdf
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This info, gentlemen, is exactly what I was looking for. I really appreciate the responses. I just bought a Lee Hand Press this weekend and until I can buy some scales, I'm gonna just use the dippers to load with but didn't want to go ahead until I got some info.
Much appreciated!
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Glad to assist in the spread of knowledge.
Lord knows I have gained since I started reading, searching and asking.
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Soo I had a slow moment and decided to fill out what all the Lee dippers might be using trail boss.
Calculated out to a few decimal points and then rounded up. Verified the Lee measurements also round up on their calculations to 1 decimal point. My formulas are at the bottom as needed to check my math, please do your own math before relying on my word for this. It is what I use, but I do not want any one relying on my math and blowing some part of their anatomy off. :o
Lee Dipper TRAIL BOSS Calculated to:
0.3 1.4 grains 1.38121547
0.5 2.3 grains 2.302025783
0.7 3.2 grains 3.222836096
1 4.6 grains 4.604051565
1.3 6.0 grains 5.985267035
1.6 7.4 grains 7.366482505
1.9 8.7 grains 8.747697974
2.2 10.1 grains 10.12891344
2.5 11.5 grains 11.51012891
2.8 12.9 grains 12.89134438
3.1 14.3 grains 14.27255985
3.4 15.7 grains 15.65377532
3.7 17.0 grains 17.03499079
4 18.4 grains 18.41620626
4.3 19.8 grains 19.79742173
Trail Boss VMD = 0.2172
Calc for CC gn*vmd=cc
Calc for gn cc/vmd=gn
Calc for VMD cc/gn=vmd
I did this on an excel spread sheet so I did not have to burn up any pencils figuring it all out.
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Howdy Athena Jake ??? 8)
Thanks for taking the time to do this, and sharing it with us , this will come in handy, and i'll keep a copy of this with my notes on loading ;) :D
tEN wOLVES ;) :D ;D
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45 Colt can take 4.5 - 5.8 gr TrailBoss. According to the above table, the only dipper that could be used would be No. 1 for 4.6 gr, which is a very light load at the bottom end of the chart, which might work for some people.
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I often make my own dippers from range pick-up cartridge cases. Try the cheaperundirt .40 S&W case. Glue or solder a handle & Roberts yer Fatherz Bruther. If it's not exactly to your liking, use a file!
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I believe the Lee Dipper Set has a sliding chart in it for most powders.
Necromancy anyone?
wM1
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I often make my own dippers from range pick-up cartridge cases. Try the cheaperundirt .40 S&W case. Glue or solder a handle & Roberts yer Fatherz Bruther. If it's not exactly to your liking, use a file!
I have done so, myself. But to get a specific charge I slowly melt solder into the bottom of the brass case dipper to reduce the internal volume, instead of filing it down.
Also, as I saw the chart above by Athena Jake, I thought, don't recall seeing this years ago and I should save it to the reloading folder on my computer. Turns out I did so 9 years ago and forgot.
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I have done so, myself. But to get a specific charge I slowly melt solder into the bottom of the brass case dipper to reduce the internal volume, instead of filing it down.
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By Golly, Abilene I like that! I never thought of it myself, but now you have my little grey cells working overtime
on a strange and nepharious necrophineous diabolical project....
yhs
prof marvel
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Perfesser, I would be sure to let the lead cool completely before checking the measurement!
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Perfesser, I would be sure to let the lead cool completely before checking the measurement!
:D :D