Author Topic: Chronograph speeds for .30-40 Trail Boss loads  (Read 1529 times)

Offline Niederlander

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Chronograph speeds for .30-40 Trail Boss loads
« on: June 01, 2021, 06:55:44 PM »
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!"

Offline Niederlander

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #1 on: June 01, 2021, 07:09:29 PM »
I would even be satisfied with loading manual velocities if anyone has those.
"There go those Nebraskans, and all hell couldn't stop them!"

Offline Coffinmaker

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #2 on: June 01, 2021, 07:41:57 PM »

 :)  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.

Offline Drydock

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #3 on: June 01, 2021, 08:20:47 PM »
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 . . .

Offline Major 2

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #4 on: June 01, 2021, 08:33:59 PM »
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 !

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Re: Chronograph speeds for .30-40 Trail Boss loads
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Offline Niederlander

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #5 on: June 01, 2021, 09:48:41 PM »
That should be close enough. Thanks!
"There go those Nebraskans, and all hell couldn't stop them!"

Offline LongWalker

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #6 on: June 02, 2021, 01:30:36 AM »
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

Offline Pitspitr

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #7 on: June 02, 2021, 07:10:38 AM »
If you need a  figure that is more accurate more accurate for your rifle, bring it over this weekend.
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Offline Major 2

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #8 on: June 02, 2021, 09:43:54 AM »
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 !

Offline Niederlander

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Re: Chronograph speeds for .30-40 Trail Boss loads
« Reply #9 on: June 02, 2021, 09:57:23 AM »
Thanks, Gentlemen!
"There go those Nebraskans, and all hell couldn't stop them!"

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Re: Chronograph speeds for .30-40 Trail Boss loads
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