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bonanza
.400 member

Reged: 17/05/04
Posts: 2335
Loc: South Carolina

H-777 in BPE cartridges.
#144061 - 21/10/09 12:36 PM

Any concern with using H-777 in a .577 BPE?

I want to try it.

--------------------

"Speak Precisely" G. Gordon Liddy.

"Life is absurd, chaotic and we must define its purpose with our actions" Abert Camus

"I''m the dude playing a dude disguised as another dude."

"Yo! Mr. White"

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CptCurl
.450 member

Reged: 01/05/04
Posts: 5284
Loc: Fincastle, Botetourt County, V...

Re: H-777 in BPE cartridges. [Re: bonanza]
#144065 - 21/10/09 12:54 PM

As I recall, Sherman Bell counseled against it. Said he got erratic results and that it is far more corrosive than black.

Other than that, I dunno.

Curl

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RoscoeStephenson.com

YOUR DOUBLE RIFLE IS YOUR BEST FRIEND.

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SharpsNitro
.375 member

Reged: 12/08/08
Posts: 729
Loc: Arizona, USA

Re: H-777 in BPE cartridges. [Re: bonanza]
#144070 - 21/10/09 02:09 PM

I don't know about doubles but I've used 777 in a 45-70 single shot. It seemed to work well, it burns cleaner than BP and doesn't foul like BP. Accuracy seemed good too. As Curl says it does seem to be more corrosive; all you need to do is not let your brass or barrel sit too long before cleaning. It cleans up real easy with a little hot water; a few patches dunked in hot water got my bore completely clean. For brass, I would dump them in a bucket of hot water to dissolve the residue. Rinse them real well, let them dry and tumble them. I did leave some in the hot soak too long (a day or two I think and they were pretty corroded).

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88MauSporter
.375 member

Reged: 06/06/07
Posts: 530
Loc: Alaska / Texas

Re: H-777 in BPE cartridges. [Re: SharpsNitro]
#144071 - 21/10/09 02:28 PM

I have used 777 in some BP cartridges. In my .50, I had high pressure signs with very moderate compression. Be very careful with the seating of the bullet. I used an card wad under the lead bullet.
Daryl has warned of immediate pitting and frosting of the bore of new barrels by one shooting session with Pyrodex. Not sure about the 777.. I do note that the velocities with 777 are higher than most BP substitutes.

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"A hunter should not use a rifle that will kill an animal when everthing goes right; you should use one that will do the job when everything goes wrong." 88MauSporter

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bonanza
.400 member

Reged: 17/05/04
Posts: 2335
Loc: South Carolina

Re: H-777 in BPE cartridges. [Re: 88MauSporter]
#144112 - 22/10/09 07:04 AM

Forget it then. I'll stick with NFB.

--------------------

"Speak Precisely" G. Gordon Liddy.

"Life is absurd, chaotic and we must define its purpose with our actions" Abert Camus

"I''m the dude playing a dude disguised as another dude."

"Yo! Mr. White"

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DarylS
.700 member

Reged: 10/08/05
Posts: 27009
Loc: Beautiful British Columbia, Ca...

Re: H-777 in BPE cartridges. [Re: bonanza]
#144157 - 23/10/09 03:53 AM

Good choice, Bonanza.

I have heard of pressure excursions with heavy loads of T-7 in large bores, but others say they use up to 175gr. ina Pedersoli 12 bore - I certainly wouldn't. Hodgdon says to reduce BP loads by 15% to 20% IIRC. Since it is probably a percholate powder, it's fouling by itself will be corrosive - just like Pyrodex - sounds like it with brass.

I tried T-7 in my 14 bore rifle and it was erratic in accuracy.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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