Chronograph speeds for .30-40 Trail Boss loads

Started by Niederlander, June 01, 2021, 06:55:44 PM

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Niederlander

Gentlemen,  Has anyone chronographed the 220 grain cast bullets with Trail Boss?  I use 13 grains in my loads, but I don't have a chronograph.
"There go those Nebraskans, and all hell couldn't stop them!"

Niederlander

I would even be satisfied with loading manual velocities if anyone has those.
"There go those Nebraskans, and all hell couldn't stop them!"

Coffinmaker


:)  Niederlander  ;)

I must admit, Imma dry hole for your question.  First Disclaimer:  I don't own a Chronograph Machine.  I have never own'ed a Chronograph Machine and admit I don't have a use for a Chronograph Machine.

Second Disclaimer:  I don't shoot Trail Boss.  In fact I have not shot a "smokeless" Fad, Heathen new fangled propellent in several Lustrum.  When I did shoot that Fad Heathen stuff, I hated Trail Boss.

Last Disclaimer:  I realize I have provided no help to the OP whatsoever.  None.  Nada.  Zip.  Zero.  A dry hole.  Of course, I knew that when I started this missive.  One must understand, it's Tuesday Evening.  I'm tired and bored and needed something to do.  If you have read this missive to this point . . . it's too late.  You're already here and can't recover.  I have found however, so long as my projectiles reach all the way to the Wiley Steels, at Seven Yards, Chronograph information is superfluous.  Just don't matter at all.

Drydock

My chrono died a short while back and has not yet been replaced.  However I seem to recall that 11.5 grains of TB ran around 1280 or so with a 200 grain Lee bullet.  I've since gone to a lighter bullet and Unique powder in my Krag Skirmish loads.

Make sure you get that front sight good and tight!
Civilize them with a Krag . . .

Major 2

Niederlander  I'll get to my notebook in the morning , And it may help some .  :-\

I have chrono'ed my 30/40 TB loads  w/ 13 grains TB but I only have .311 -193 grain bullets ...  nothing heavier sorry


I use TB in all my 30 Cal.s   

when planets align...do the deal !

Niederlander

"There go those Nebraskans, and all hell couldn't stop them!"

LongWalker

I got 1210 fps with a 220 gc cast bullet, but a couple of qualifiers: sporterized rifle cut down to ~24" (I can check if you want), and I'm not certain the chamber leade is the same as a military barrel.  Accuracy was nothing to write home about, I suspect the velocity was too low for the bullet. 
In my book a pioneer is a man who turned all the grass upside down, strung bob-wire over the dust that was left, poisoned the water, cut down the trees, killed the Indian who owned the land and called it progress.  Charles M. Russell

Pitspitr

If you need a  figure that is more accurate more accurate for your rifle, bring it over this weekend.
I remain, Your Ob'd Servant,
Jerry M. "Pitspitr" Davenport
(Bvt.)Brigadier General Commanding,
Grand Army of the Frontier
BC/IT, Expert, Sharpshooter, Marksman, CC, SoM
NRA CRSO, RVWA IIT2; SASS ROI, ROII;
NRA Benefactor Life; AZSA Life; NCOWS Life

Major 2

Here you go Sir

1361 FPS   consistent ( a high of 1367 FPS  )  I'm pleased with the groupings.

13 grains Trail Boss  GC

Hunters Supply 30 Caliber 193 grain Flat Point Lead Bullet
Diameter .311 - sized with GC

Constabulary/Cadet Rifle
when planets align...do the deal !

Niederlander

"There go those Nebraskans, and all hell couldn't stop them!"

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