Results 1 to 7 of 7

Thread: ROT Smith Hoyt reline

  1. #1
    fullertc is offline
    Team:
    29th Wisconsin Volunteer Infantry
    Member
    5036V
    Join Date
    Dec 2008
    Location
    Eagle, MI
    Posts
    96
    Region:
    Western - Illinois and Wisconsin

    ROT Smith Hoyt reline

    I'm reading a 1/3 turn in a 22" bbl which should put me a t 1:66 twist. Am I wrong? Using the Greenhill formula, that may be a little too long. What are your measurements? I'm trying the T/C Maxi ball sized to .515. What loads with what twists are you shooting? Thanks.
    Tom Fuller, 5036V,
    29th Wisconsin Inf.

  2. #2
    Gary Vikar is offline
    Team:
    Visitor (non-N-SSA Member)
    Member
    n/a
    Join Date
    Nov 2006
    Location
    Chesterfield, MI
    Posts
    115
    Region:
    Visitor
    That's is Hoyt normal twist for his Barrels. Bobby told me that this rate was the best for a skirmisher as you could pretty well shoot any bullet in it. I found the the hodgdon Bullet (North-South skirmish bullet) works the best using 42 grain of 2f or 3F. Midway has the mold in stock https://www.midwayusa.com/product/1010242234?pid=637400
    Gerhardt Vikar Sr.
    Richmond Purcell's Battery
    NWT198

    Former National IG
    Former NWT Regional Commander.

  3. #3
    fullertc is offline
    Team:
    29th Wisconsin Volunteer Infantry
    Member
    5036V
    Join Date
    Dec 2008
    Location
    Eagle, MI
    Posts
    96
    Region:
    Western - Illinois and Wisconsin
    Thank you, Gary, but how do you get 42 gr of powder in a Smith tube? Typo? I ran a tight patch from the muzzle of my Smith Hoyt relined 22" bbl and it turned 1/3 as it exited the breech. I multiplied it by 3 to get 1:66". The bullet moulds that I have are outside of the "specs" according to Greenhill, give or take some?
    Tom Fuller, 5036V,
    29th Wisconsin Inf.

  4. #4
    sfoster is offline
    Team:
    Chesapeake Artillery, 4th Maryland Artillery
    Member
    13905 228-PT
    Join Date
    Jan 2007
    Location
    Manassas
    Posts
    57
    Region:
    Potomac - Virginia, Maryland and Delaware
    The mold in his link is for a .578"minie. Perhaps so is the load.

  5. #5
    Gary Vikar is offline
    Team:
    Visitor (non-N-SSA Member)
    Member
    n/a
    Join Date
    Nov 2006
    Location
    Chesterfield, MI
    Posts
    115
    Region:
    Visitor
    Quote Originally Posted by fullertc View Post
    Thank you, Gary, but how do you get 42 gr of powder in a Smith tube? Typo? I ran a tight patch from the muzzle of my Smith Hoyt relined 22" bbl and it turned 1/3 as it exited the breech. I multiplied it by 3 to get 1:66". The bullet moulds that I have are outside of the "specs" according to hill, give or take some?


    I thought it was for a musket. 28 grains of 3f, a paper wad over the black powder. Next 7 grains of grits. I use a .515 bullet .50 cal Lyman mold. Also a Larry Romano Spencer bullet. The bullet is one of Larry prototype with excellent results. Era Gone by was a new copy of the original C.W. smith that shoots well also. The lube I use is SPG. Also SPG a new lube for hot weather.

    http://erasgonebullets.webstarts.com...0_caliber.html
    Gerhardt Vikar Sr.
    Richmond Purcell's Battery
    NWT198

    Former National IG
    Former NWT Regional Commander.

  6. #6
    Join Date
    Dec 2004
    Location
    Sherman's Kitchen, GA
    Posts
    980
    Region:
    Deep South - Georgia, Louisiana, Tennessee, Mississippi and Texas

    Sir Alfred George Greenhill (1847-1929)

    You really depend on Greenhill's equation? You might want to read his 1908 treatise "Notes on Dynamics," which was used to describe the elliptical flight of lead-steel artillery projectiles, not lead-alloy bullets. Greenhill's work was mainly on elliptical functions, and was interested in their applications to dynamics, hydrodynamics, elasticity, and electrostatics.

    Greenhill's "equation" negates friction caused by a projectile passing through the air; negates the earth's gravitational pull on the projectile; negates frictional forces of air acting counter to the rotation of the projectile; negates the inverse square law relative to gravity; assumes a terminal velocity of 2000 feet per second of a 6-inch ellipsoidal (egg-shaped) metallic shot that is 3.5 calibres in length, and a weight of 0.2 pounds (but of unknown mass density), then assumes the air density is 800 times the specific gravity of the metal. So if you want to base your new bullet design on "Greenhill's equation," good luck. There are other "equations" that have been attributed to Greenhill, but his equation relative to his Notes on Dynamics, was never intended as applicable to lead-alloy bullets. Greenhill taught in the Artillery College of the Royal Military Academy at Woolwich from 1876 to 1908.
    First Cousin (7 times removed) to Brigadier General Stand Watie (1806-1871), CSA
    1st Cherokee Mounted Rifles | Principal Chief of the Cherokee Nation 1862-66

  7. #7
    gemmer is offline
    Team:
    Visitor (non-N-SSA Member)
    Member
    N/A
    Join Date
    Aug 2011
    Location
    North Carolina
    Posts
    346
    Region:
    Visitor
    When Bobby relined my Erma Gallagher for the Smith/Maynard bullet I asked him to the same twist as a Smith with a .515 groove. I really don't know what the twist is, but it shoots the Lee Smith/Maynard from Lodgewood extremely well. It's a .518 mould and I size to .517. It's chambered for Gallagher cases.

Similar Threads

  1. Pietta Smith Carbine with Hoyt reline and accessories
    By 2kycav in forum Wanted/For Sale Items
    Replies: 0
    Last Post: 10-14-2019, 10:12 AM
  2. Original Lorenz for sale. Hoyt reline
    By SyLibby in forum Wanted/For Sale Items
    Replies: 1
    Last Post: 07-05-2019, 04:39 PM
  3. Fs original smith barrel with bobby hoyt reline
    By Bruce Cobb 1723V in forum Wanted/For Sale Items
    Replies: 0
    Last Post: 03-03-2017, 12:53 PM
  4. FS/ Richmond Carbine Hoyt Reline SAC card
    By twines in forum Wanted/For Sale Items
    Replies: 1
    Last Post: 08-23-2016, 04:27 PM
  5. Erma Gallagher FS w/brass - Hoyt Reline - SPF
    By oscarlovel in forum Wanted/For Sale Items
    Replies: 2
    Last Post: 08-04-2011, 06:26 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •