Krag Collectors Association Forum Archive - System Information

(UTC)

Krag Collectors Association Forum Archive › General › Ammunition, reloading, shooting, etc › Trail Boss

(Moderators: KCA Forum Admin, Ned Butts, Tom Butts)

‹ Previous Topic | Next Topic ›

Page Index Toggle

Pages: 1

Trail Boss (Read 4561 times)

polska KCA Forum Member Offline Krag Enthusiast! Posts: 14 Location: usa Joined: Aug 18^th, 2014 Gender:	Trail Boss Aug 15^th, 2017 at 9:20am	Print Post
	Has any seen any load data using trail boss in their Krags. I have been searching for different rifle applications as it has very low pressure. I started searching as I have read people using it in low numbered 1903's.


	IP Logged

KWK KCA Forum Member Offline Posts: 25 Location: Illinois Joined: Jul 31^st, 2017	Re: Trail Boss Reply #1 - Aug 15^th, 2017 at 6:58pm	Print Post
	The .308 Win and the .30 Krag have nearly the same case capacity (about 57 gn) and nearly the same amount of bullet protrusion from the case (about 0.8"). The two will, then, likely be close in pressure. For the .308 Win, Hodgdon lists 14.0 gn of Trail Boss under the 150 gn Nosler BT as 27000 psi with 1400 fps from a 24" barrel. There are two other interesting low pressure loads in their .308 data, both for a 168 gn Sierra HPBT, namely 8.0 gn of either Titegroup or Clays, both producing about 1060 fps from 24" and about 26000 pressure.


	WWW IP Logged

Hoot KCA Forum Member Offline Krag Enthusiast! Posts: 69 Location: Diversityville, Liberal-sota Joined: Oct 11^th, 2016 Gender:	Re: Trail Boss Reply #2 - Aug 15^th, 2017 at 9:18pm	Print Post
	Here is what IMR has to say on their site: (You need to *Login* to view media files and links) Essentially, full case to the base of the seated bullet, not compressed, is the maximum load. 70% of that figure is the starting load. I have not personally run the numbers for the .30USG.


	IP Logged

wanttolearn KCA Forum Member Offline Krag Enthusiast! Posts: 5 Joined: May 5^th, 2017	Re: Trail Boss Reply #3 - Aug 31^st, 2017 at 2:14am	Print Post
	Hi, the link doesn't seem to work for me. May i confirm then that 14gr or 70% of the fill volume of a Krag 30-40 case is an appropriate load for a 150 gr lead projectile. Unfortunately my reloading manual does not list TrailBoss. thank you


	IP Logged

madsenshooter KCA Forum Member Offline Krag Enthusiast! Posts: 1079 Joined: Sep 10^th, 2009	Re: Trail Boss Reply #4 - Aug 31^st, 2017 at 4:05am	Print Post
	I poked around enough at the link above to find it, but can't link directly to it. Start load of 10gr, max load of 14gr. Start velocity 1186fps, max velocity 1477fps. Start load pressure of 25,800PSI, max load pressure of 27,100. I note this is with a 150gr jacketed bullet. With cast, velocity will be higher, pressure lower.


	IP Logged

wanttolearn KCA Forum Member Offline Krag Enthusiast! Posts: 5 Joined: May 5^th, 2017	Re: Trail Boss Reply #5 - Aug 31^st, 2017 at 2:01pm	Print Post
	thank you. i really appreciate it.


	IP Logged

Hoot KCA Forum Member Offline Krag Enthusiast! Posts: 69 Location: Diversityville, Liberal-sota Joined: Oct 11^th, 2016 Gender:	Re: Trail Boss Reply #6 - Sep 6^th, 2017 at 6:29pm	Print Post
	Well huh. That link doesn't work for me either. Here's (hopefully) another way to get to it => (You need to *Login* to view media files and links) The data sheet you want is about half way down the page under "Reduced Rifle Loads". Doesn't change any of the above information; just trying to get the link to work...


	IP Logged

Major KCA Forum Member Offline Krag Enthusiast! Posts: 1 Joined: Jul 29^th, 2017	Re: Trail Boss Reply #7 - Oct 8^th, 2017 at 3:45pm	Print Post
	Brand spanking new to 30/40 I'm trying TB @ 11.5 grains (70% formula) and 165 grain .311 hi-tech coated from Missouri Bullet... crimping @ 2.93 " also a 185 grain . 310 coated from Penn ( these have not arrived as yet.... What I'm after, is a comfortable plinking load that will feed reliably and hit the steel @ 50 yards maybe out to 70 yds.


	IP Logged

BCB KCA Forum Member Offline Krag Enthusiast! Posts: 9 Joined: Feb 5^th, 2017	Re: Trail Boss Reply #8 - Oct 9^th, 2017 at 9:33pm	Print Post
	I've used the 70% rule as previously mentioned. I have used TB in 13 different cartridges and honestly have not found it to be "gawd's" gift to the reloader. Accuracy for all was only so-so, but I think it works better in straight-walled cases. Mostly handguns... I have used 9.0 and 11.0 grains of TB with the NOE 311-202-RN (210+ grains) for velocities of 1003 fps and 1107 fps respectively... Accuracy was not great at all. I think the velocity was a tad too slow for the 210 grainer... Good-luck...BCB


	IP Logged

Page Index Toggle

Pages: 1

‹ Previous Topic | Next Topic ›