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Seeking Green Mountain .38-55 load recipes (Read 5333 times)

Nick_of_Time Participating Member Offline Posts: 19 Joined: Jul 19^th, 2012	Seeking Green Mountain .38-55 load recipes Nov 23^rd, 2014 at 7:22pm	Print Post
	Hey Folks, I'm having a gunsmith create a .38-55 gun on an original Ballard action using a new Green Mountain 1-in-12 barrel for BPCR silhouette shooting. It'll be a few months, but in the meantime I need to find a bullet mould, etc. So I'd be interested in hearing from people who have similar setup - what load (bullet diameter, weight, etcs.,) works well for you? Thanks, -Nick


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ssdave Frequent Elocutionist Offline Posts: 2130 Location: Eastern Oregon Joined: Apr 16^th, 2004	Re: Seeking Green Mountain .38-55 load recipes Reply #1 - Nov 23^rd, 2014 at 8:01pm	Print Post
	My wife's 12 twist .38-55 BPCR, we are using .38-55 Starline long brass, chamber custom cut to match that brass and the 365 grain NASA bullet by Old West Bullet Molds. I'm loading 4198 powder, chronographed to 1375 fps. This is to duplicate the ballistics of our .38-72 blackpowder load. I think it took about 24 grains of IMR4198 to meet that velocity. I am using puflon as a filler over the powder. It seems to work about equally well with or without, but slightly lower SD in velocity with it. dave


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: Seeking Green Mountain .38-55 load recipes Reply #2 - Nov 23^rd, 2014 at 9:01pm	Print Post
	Have had good success in a 13.25" twist barrel with the BACo 360gr Money bullet and 48gr of 3F Swiss in the Winchester and long Starline case (Win seems to be a bit better). Also, a Brooks 340gr Money bullet with 47gr of 3F Swiss. Both are excellent out to 600yd.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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art_ruggiero Frequent Elocutionist Offline Posts: 1220 Location: CT Joined: Dec 14^th, 2008	Re: Seeking Green Mountain .38-55 load recipes Reply #3 - Nov 24^th, 2014 at 12:32pm	Print Post
	the lyman bullet 330 grains, shoots very well in both my 38/55 rifles art


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Leo1885 Junior Member Offline Posts: 85 Location: Beaverton, OR Joined: Sep 30^th, 2007	Re: Seeking Green Mountain .38-55 load recipes Reply #4 - Nov 25^th, 2014 at 1:24pm	Print Post
	I'm using Buffalo Arms' 330 grain Creedmore (JIM377325C1), 30/1, SPG, over 46 grains Swiss 3f (compressed), and CCI LP primer. I forgot to include .03" over powder wad.
	« Last Edit: Nov 26^th, 2014 at 3:00pm by Leo1885 »

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JS47 Frequent Elocutionist Offline Posts: 1265 Location: Arizona Joined: Oct 12^th, 2012	Re: Seeking Green Mountain .38-55 load recipes Reply #5 - Nov 26^th, 2014 at 10:58pm	Print Post
	I'm in the process of putting a 38-55 BRC barrel on my CPA. I test fired it for function yesterday using the plain old Lyman 375248 bullet cast of wheel weights. I used 18 grains of some old 296 that needs to be shot up, looking for around 1400 fps. After 3 fouling and bag fiddling shots the next 7 went into 3/4" at 90 yds. That wasn't supposed to happen with fixed ammunition and a random test fire load. I don't know what to think about it other than if you can't be good, be lucky. JS


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: Seeking Green Mountain .38-55 load recipes Reply #6 - Nov 27^th, 2014 at 9:11am	Print Post
	Am guessing they won't let the OP use those smokeless loads in BPCR silhouette.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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Lefty38-55 Senior Forum Member Offline Posts: 366 Location: New England Joined: Sep 11^th, 2013	Re: Seeking Green Mountain .38-55 load recipes Reply #7 - Nov 28^th, 2014 at 3:34pm	Print Post
	JS47 wrote on Nov 26^th, 2014 at 10:58pm: ... 38-55 ... fired it for function yesterday using the plain old Lyman 375248 bullet cast of wheel weights. I used 18 grains of some old 296 that needs to be shot up, looking for around 1400 fps. After 3 fouling and bag fiddling shots the next 7 went into 3/4" at 90 yds. FWIW my CPA 38-55 using their basic 28" barrel, will put that same bullet cast 20:1 (over 4759) thru the same ragged hole at 100Y using fixed ammo, albeit that was scoped and benched ...

	All of my single shots shoot one tiny ragged hole with cast bullets ... it's just the following shots that tend to open up my groups ...
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JS47 Frequent Elocutionist Offline Posts: 1265 Location: Arizona Joined: Oct 12^th, 2012	Re: Seeking Green Mountain .38-55 load recipes Reply #8 - Nov 28^th, 2014 at 10:51pm	Print Post
	[ FWIW my CPA 38-55 using their basic 28" barrel, will put that same bullet cast 20:1 (over 4759) thru the same ragged hole at 100Y using fixed ammo, albeit that was scoped and benched ... That's good to know. I may not need to order another mold. I have a throater on order but I think I'll play with it awhile as is before I change anything. I tried the same load today with the aperture sights. It shot into 1 3/4". Maybe the 12 degree temperature had something to do with the larger group. JS
	« Last Edit: Nov 28^th, 2014 at 11:16pm by JS47 »

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Hiwall55 Senior Forum Member Offline Posts: 468 Location: west central Illinois Joined: Jun 30^th, 2012	Re: Seeking Green Mountain .38-55 load recipes Reply #9 - Nov 30^th, 2014 at 5:54am	Print Post
	Hi Nick,my CPA 38-55 with long brass shoots very well with the lyman postel over 44 grs. Of Swiss 1.5 with a .060 poly wad.same load with a BACO 360 grain custom money bullet for Rams .


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