Revolver for firing high velocity ammunition

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame;
• a barrel connected to the frame and having a longitudinal, cylindrical bore extending there through and a forcing cone formed in a rearward end of the barrel, wherein a surface of said forcing cone is provided with a reflective finish for reducing erosion from hot gases when the firearm is discharged;
• at least one chamber operatively aligned with the barrel for housing a round of ammunition having a cartridge casing, wherein the chamber is adjustably spaced apart from the rearward end of the barrel by way of at least one removable spacer disposed between the frame and barrel;
• wherein the frame is provided with a firing pin aperture extending through a bushing-less integral bolster face portion of the frame proximate a rearward side of the at least one chamber, said bolster face portion being hardened for supporting the casing during discharge, wherein
• the frame includes a main portion and a shroud connected to the main portion, said barrel being disposed in the shroud;
• the shroud, includes a fore-facing flange positioned proximate a forward end of the shroud;
• and
• the at least one removable spacer is an annular spacer abutting the shroud flange, wherein the width of the spacer is selected to provide a desired spacing between the barrel and chamber.

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame;
• a barrel connected to the frame and having a longitudinal, cylindrical bore extending there through and a forcing cone formed in a rearward end of the barrel, wherein a surface of said forcing cone is provided with a reflective finish for reducing erosion from hot gases when the firearm is discharged;
• at least one chamber operatively aligned with the barrel for housing a round of ammunition having a cartridge casing, wherein the chamber is adjustably spaced apart from the rearward end of the barrel by way of at least one removable spacer disposed between the frame and barrel;
• wherein the frame is provided with a firing pin aperture extending through a bushing-less, integral bolster face portion of the frame proximate a rearward side of the at least one chamber, said bolster face portion being hardened for supporting the casing during discharge, wherein
• the frame further includes a main portion and a shroud connected to the main portion, said barrel being disposed in the shroud;
• the shroud includes a fore-facing flange positioned proximate a forward end of the shroud;
• the at least one removable spacer is an annular spacer abutting the shroud flange, wherein the width of the spacer is selected to provide a desired spacing between the barrel and chamber;
• and
• wherein the barrel includes a rear-facing flange positioned proximate a forward end of the barrel for abutting the spacer.

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame;
• a barrel connected to the frame and having a longitudinal, cylindrical bore extending there through and a forcing cone formed in a rearward end of the barrel, wherein a surface of said forcing cone is provided with a reflective finish for reducing erosion from hot gases when the firearm is discharged;
• at least one chamber operatively aligned with the barrel for housing a round of ammunition having a cartridge casing, wherein the chamber is adjustably spaced apart from the rearward end of the barrel by way of at least one removable spacer disposed between the frame and barrel;
• wherein the frame is provided with a firing pin aperture extending through a bushing-less, integral bolster face portion of the frame proximate a rearward side of the at least one chamber, said bolster face portion being hardened for supporting the casing during discharge;
• wherein an inner wall of the barrel that defines the bore is provided with gain-twist rifling;
• and
• wherein the gain-twist rifling comprises a plurality of alternating lands and grooves in the inner wall, wherein the grooves have a twist rate that varies along the length of the barrel from a slow rate at the rearward end of the barrel to a higher rate at a forward end of the barrel, and wherein the width of the lands increases as the twist rate increases.

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame;
• a barrel connected to the frame;
• and
• at least one chamber operatively aligned with the barrel for housing a round of ammunition, wherein the chamber is adjustably spaced apart from a rearward end of the barrel facing the chamber by way of at least one removable spacer;
• wherein said spacer is located at a forward end of the barrel opposite said rearward end of the barrel.

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame;
• a barrel connected to the frame;
• at least one chamber operatively aligned with the barrel for housing a round of ammunition, wherein the chamber is adjustably spaced apart from a rearward end of the barrel facing the chamber by way of at least one removable spacer disposed between the frame and barrel;
• wherein the frame includes a main portion and a shroud connected to the main portion, said barrel being disposed in the shroud;
• the shroud includes a fore-facing flange positioned proximate a fore end of the shroud;
• and
• the at least one removable spacer is an annular spacer abutting the shroud flange, wherein the width of the spacer is selected to provide a desired spacing between the barrel and chamber.

A firearm for firing high velocity ammunition, the firearm comprising:

• a frame
• a barrel connected to the frame;
• at least one chamber operatively aligned with the barrel for housing a round of ammunition, wherein the chamber is adjustably spaced apart from a rearward end of the barrel facing the chamber by way of at least one removable spacer disposed between the frame and barrel;
• wherein the frame includes a main portion and a shroud connected to the main portion, said barrel being disposed in the shroud;
• the shroud includes a fore-facing flange positioned proximate a fore end of the shroud;
• the at least one removable spacer is an annular spacer abutting the shroud flange, wherein the width of the spacer is selected to provide a desired spacing between the barrel and chamber;
• and
• wherein the barrel includes a rear-facing flange positioned proximate a fore end of the barrel for abutting the spacer.