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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

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Wayne59
.400 member

Reged: 20/06/15
Posts: 1219
Loc: Lagrange Ga. USA

New member seeking 577 infomation
#266863 - 23/06/15 11:11 AM

Hello to all. I am new to this forum so I guess I should introduce my self before I start asking questions. My name is Wayne and I live in Lagrange Ga. USA. I am a gun collector and shooter. I own several British single shots and a couple of double rifles and like most of you probable have more guns than I can use. I won't go as fare as saying that I am not an addict. Now for my first question. I am getting ready to build a 577 double rifle and I have been unable to find any twist rates for the Bpe guns. So any one with info on bullet lenths and weights along with twist rates and rifling depth would be of help. This is my first time on the forum so I will see if I can figure out how to work the search function. Thanks in advance for any help.

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DarylS
.700 member

Reged: 10/08/05
Posts: 27008
Loc: Beautiful British Columbia, Ca...

Re: New member seeking 577 infomation [Re: Wayne59]
#266868 - 23/06/15 12:07 PM

.577 BPE will normally shoot 500 to 650gr. bullets. With such, a slow twist will work fine- I'd think something from a 36" to 48" should suffice. Even slower will work as my .58 Hawken (66" twist) shot 675gr. RN bullets into 2" at 100 meters with 165gr. 2F.

I shortened the plunger of the Lyman #57730 mould creating a short hollow base with a very thick skirt, increasing the weight by just over 100gr. This mould is probably undersize for a BPE - but of course, much depends on the groove diameter of the available barrels.

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

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

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Wayne59
.400 member

Reged: 20/06/15
Posts: 1219
Loc: Lagrange Ga. USA

Re: New member seeking 577 infomation [Re: DarylS]
#266881 - 23/06/15 04:38 PM

I am getting ready to order the barrels. The maker is ordering a new finished reamer in .577 and they will be rifled to .585. Don't really want to use a mini ball mold. They do not hold enough grease. NEI makes a nice mold that cast 610 grains. Have you had any experience with them.

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CHAPUISARMES
.416 member

Reged: 16/01/08
Posts: 2908
Loc: DUBBO, NSW, AUSTRALIA

Re: New member seeking 577 infomation [Re: Wayne59]
#266888 - 23/06/15 06:31 PM

Hi Wayne,

Welcome aboard to NitroExpress. The members have a vast wealth of information between them and are more than welcome to share this information with everyone.

I believe that you have found the most informative and friendly forum on the web and where everyone shows respect to each other.

Again, welcome aboard,

Cheers for Australia,

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DarylS
.700 member

Reged: 10/08/05
Posts: 27008
Loc: Beautiful British Columbia, Ca...

Re: New member seeking 577 infomation [Re: CHAPUISARMES]
#266901 - 24/06/15 12:55 AM

At .585" groove depth, you'll need a dedicated mould of course.

As far as holding enough grease - if using REAL BP lube (BP Gold or SPG) as I did, the lubrication I applied was sufficient for repeated shots and group shooting with no loss of accuracy. Whenever shooting a smokepole (or BP ctg. gun), I loath having to wipe the bore until I am finished shooting the group or with patched round ball, shooting for the day.

Only the outside grease grooves were lubed. Good PROPER lube makes a difference and is fully capable of holding accuracy for a 5 shot group + a fouler if need be.

I'm sure you'll get it sorted out.

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

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

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Wayne59
.400 member

Reged: 20/06/15
Posts: 1219
Loc: Lagrange Ga. USA

Re: New member seeking 577 infomation [Re: DarylS]
#266913 - 24/06/15 06:25 AM

I will actually be shooting a nitro for black load in the gun. That is once I fire it with black to get a velocity reading for the gun. I already have a good lube. I make it from a mixture of bees wax Vaseline and peanut oil. Works great guns clean easy and dos'nt seem to matter weather its smokeless or black powder. I am thinking about a 1-44 twist and a 625 to 650 bullet.

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Birdhunter50
.375 member

Reged: 03/06/07
Posts: 815
Loc: Iowa,U.S.A.

Re: New member seeking 577 infomation [Re: Wayne59]
#266970 - 25/06/15 10:28 PM

Wayne,
Contact Pac-Nor barrels and tell them what you want, they are very good to work with. Bob

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