I'm new in sharps , i wanted one Pedersoli sharps 1874 hunter version , pistol grip , shotgun butt stock , 30'' octagonal barrel . 45-70 gov't . 

But i wanted to rechambered it in .45-90 or .45-100 . 
Do someone here have try high pressure load in this sharps . 
Some people told the modern sharps are strong like ruger # 1 , but pedersoli answer me to load at 18 000 psi maximum with light bullet , or only use factory ammo of 29 000 psi and less . but also told me the sharps have been tested over 30% of factory ammo pressure without issue . But they can told me to use that pressure . So i look in internet and only find one time a pedersoli sharps blow out and blow hand of the shooter in same time , that happen in competition made each year . So i wanted one long time ago , i always dream to have one , but i wanted something capable of moderne pressure and moderne velocity , hi have before ruger #1 rebarreled with 32'' barrel chamber in .45-100 , and the 500 grain i take the load data of the 458 win mag , and with the 32 inch barrel the 500 gr excape the muzzle at 2400 fps . but s not sharps i sale it . And this 2016 i wanted to have my sharps for 2017

Venom,

Somebody managed to split a Pedersoli Sharps action apart at the Quigley a couple years ago.  This was with an overload of smokeless powder.  Even with modern alloys, the Sharps is still an antiquated design, with few of the safety features of a modern single shot rifle.  They were designed and built around the ballistics of black powder.  As the cartridges get longer (.45-70 to .45-90 to .45-100), it gets harder to get a safe smokeless load that is as high in velocity than the .45-70 "high-speed" loadings, which is why the old chamberings died out in the smokeless powder era.

A modern Sharps repro will no doubt stand a high pressure proof load or two, but a steady diet of such loads is eventually going to do some damage.  The longer brass cases in the Sharps calibers do not have the thick web at the base that modern brass like the .458 has. If you hot-rod the long case with smokeless powder and it bursts around the base, remember that the end of that firing pin is pointed right at your shooting eye, covered only by a little piece of sheet metal.

We had a writer, back in the 1980's, who liked to go on and on about the wonderful modern steels that the old gun designs were now made of, and the great advances in metallurgy that resulted in brass cases that were so much stronger than in the old days, and the marvelous modern powders with their progressive burning characteristics that allowed high velocities to be reached safely.  He had a modern Winchester 94 barreled with a strong modern steel barrel, chambered it in .32 Special and announced that, using brand new brass cases, by the time he was done with load development, the old girl was going to be on the tail of the 8mm Mauser.

The final chapter of the story was him sitting in tears at the shooting bench, with the breech of his expensive new rifle brazed shut, and smoke coming out of all the wrong holes in the action.  All that modern marvelousness didn't help the old design reach max velocities after all, although they probably kept his face intact.  He at least had the class to document this, and he is still writing, though much more cautious in his reloading now.

If you want a Sharps side hammer, stick with its design limitations.  If you want a Sharps to hot-rod, get a modern Sharps-Borchardt repro, (accepting all risks since you are still going into unknown territory) or, better still, see if you can buy that Ruger back. 

"Somebody managed to split a Pedersoli Sharps action apart at the Quigley a couple years ago.  This was with an overload of smokeless powder." 

A Ballard came apart at The Quigley Shoot a couple of years ago, but I don't remember ever seeing or hearing of that occurring at that event with a Sharps of any manufacture.

If Pedersoli  recon that the action is only safe for black powder pressures, why not just take their word for it. To me this all looks like an accident waiting to happen.
Mike.
PS  They say it's not possible to make something idiot proof because idiots are so ingenious.

Shiloh has a barrel and action  that the barrel had split open
4 to 5''.......the action is as good as a new one ,no damage!
this was caused by a compressed smokeless charge ! Recoil
knocked the shooter out cold! He suffered No Damage! 

You form your own opinion on this one ....Ol Deuce

Pedersoli answer me , but i see someone give the same steel number . but here what they answer me 

The frame is forged and made of 18 CrMo4 and it is the same material used for all the frames of our cartridge rifles.
It is a low carbon steel that enables a cementation and a hardening, such to have a hard surface and a soft "heart".

Barrels' steel ISO Standards 30CrMo4 

So what they same to tell is the action are Ok for lever action load data but not tested for over that . 
The action same to be more stronger than the Marlin one , but without a proof of it , i will not buy sharps rifle except if i find Shiloh sharps but is something almost impossible in canada . Shiloh sharps have been tested for over 70 000 psi without issue , and is egual of a Ruger number 1 or Browning/Winchester b78/1885 action .  So if i wanted something modern , can take high pressure load , better to go with a Browning Modern High wall b78 or 1885 . Because Shiloh sharps are just too rare in canada to try to buy one .

70 000 psi was the answer shiloh give me . 
I ask to know at what pressure rifle was tested and they answer me ''we tested at about 70 000 psi without issue'' ''our sharps are one of the tougher on the market today'' 

and i ask if it was true is about same strengh then a ruger #1 and they told me ''any of the load use in Ruger #1 , our's sharps can take it without problem''

I have 1000 round of .45-70 gov't loaded for marlin 1895 action , for the most of it is 400 gr @ 1900 fps to 2000 fps , 460 gr 1800 fps - 1900 fps  , 500 gr 1600-1700 fps out of my 18.5'' barrel . So i wanted another rifle can take same ammo without problem , to not injured my self  . 
For what i know the only one can handle that and still look like the old days of west is the Browning/winchester 1885 high wall . I have custom one before in .50-90 sharps smokeless load , 600 gr @ 2300 fps out of 26 inch barrel . 700 gr @ 2100 fps . No signs of pressure , but in the 50-90 sharps those load are about 45 000 cup . so is not too high in pressure .