Rimfire Firing-Pin Indent Copper Crusher (Part 1)
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Catalog & Order Form Lead Bullet Technologies
Lead Bullet Technologies F.I.G ENT., INC. 78592 Hwy 2 Moyie Springs, ID 83845 Catalog & Order Form LBT PREMIUM MOLDS LBT bullet designs are the most copied cast bullets in the world, because, when they are cast in molds manufactured by LBT they are the most accurate bullets available! However, copying the profile of an LBT bullet by cherrying or conventional lathe boring processes, as all other moldmakers do, does not result in molds or bullets that live up to LBT accuracy standards! You see, the heart of all molds, which is the cavities, are produced at LBT with a one of its kind, ultra precision, custom designed, custom built, reducing tracer lathe. This only machine in the world was engineered for the single purpose of producing molds with precision that no available machinery could match. - In the 23 years of its existence, no moldmaker or machine, or mold cutting method has come close to producing LBT quality! - Because of this, the advantages of purchasing your molds from LBT are: 1. Molds which drop their bullets easier then any other mold. 2. Bullets which are better balanced than can be produced in any other molds, because they are round and sound, or free of voids-which equals: 3. Accuracy that is untouchable by bullets from other manufactures molds, even if they have copied our superior designs! Not to mention the design features in LBT molds which ensure void free bullets, flat bases, and extra long service life. LBT sprue plates are designed to minimize the shrink voids and air pockets which unbalance bullets and destroy accuracy, and are equipped with spring hold downs at two points, which prevent the sprue plate from lifting off the mold and causing finned and out of square bases. -
Handloading the .327 Federal Magnum
Load Development The .327 Federal Magnum was introduced in a Ruger SP101 six-shot revolver. Brian Pearce ederal Cartridge has teamed jacketed bullet 1,400 fps and a Speer with Sturm, Ruger & Com- 115-grain Gold Dot hollowpoint Fpany to introduce a com- 1,300 fps; a Federal “Low Recoil” pletely modern .32-caliber cartridge load pushes an 85-grain Hydra- known as the .327 Federal Mag- Shok 1,330 fps. These velocities num. It is essentially a lengthened are advertised from a Ruger SP101 version of the .32 H&R Magnum revolver with a 31/16-inch barrel. For cartridge with a case length of 1.200 the record, those speeds are realistic, inches, but it’s loaded to signifi- as the test revolver used herein pro- cantly greater pressures of 45,000 duced greater velocities than factory psi. In spite of its name, it utilizes claims. the same .312-inch bullets as other The Ruger SP101 is a small- .32-caliber cartridges, including the frame, double-action revolver, and .32 S&W Long, .32 H&R Magnum when chambered in .327 Federal and .32 WCF (aka .32-20). Magnum, it features six shots rather The .327 Federal Magnum of- than five when the same gun is The .327 Federal Magnum (left) is essentially fers substantial performance and chambered in .38 Special or .357 a lengthened .32 H&R Magnum (right) but is advertised to drive a 100-grain Magnum. This is a stout and un- loaded to significantly greater pressures. 1 LOAD DEVELOPMENT • May-June 2009 loaddata.com Handloading the .327 Federal Magnum Case length for the .327 Federal Magnum is 1.200 inches. -
Bersa Thunder 9 Pistol
Dope Bag is compiled by Staff and Contributing Editors: David Andrews, Hugh C. Birnbaum, Bruce N. Canfield, Russ Carpenter, O. Reid Coffield, William C. Davis, Jr., Pete Dickey, Charles Fagg, Robert W. Hunnicutt, Mark A. Keefe, IV, Ron Keysor, Angus Laidlaw, Scott E. Mayer, Charles E. Petty, Robert B. Pomeranz, O.D., Charles R. Suydam and A.W.F. Taylerson. CAUTION: Technical data and information contained herein are intended to provide information based on the limited experience of individuals under specific condi- tions and circumstances. They do not detail the compre- hensive training procedures, techniques and safety pre- cautions absolutely necessary to properly carry on simi- lar activity. Read the notice and disclaimer on the con- tents page. Always consult comprehensive reference manuals and bulletins for details of proper training requirements, procedures, techniques and safety pre- cautions before attempting any similar activity. BERSA THUNDER 9 PISTOL RGENTINA probably doesn’t come to Amind when one calls the roll of pistol- making nations, but Bersa, S.A., has been making pocket pistols there for many years. Now the firm has stepped up to the chal- lenge of a full-sized 9 mm with the new Thunder 9. There’s such a glut of 9 mm autoloaders these days that it takes some- thing a bit out of the ordinary to make a splash, and the Thunder 9 provides it, with The Bersa Thunder 9 seems several interesting features. to have been inspired by the When first examining the Thunder 9, we elegant but very expensive Walther P88. The Argentine- immediately were reminded of the Walther made Bersa offers many of P88 (July 1991, p. -
Firearm Evidence
INDIANAPOLIS-MARION COUNTY FORENSIC SERVICES AGENCY Doctor Dennis J. Nicholas Institute of Forensic Science 40 SOUTH ALABAMA STREET INDIANAPOLIS, INDIANA 46204 PHONE (317) 327-3670 FAX (317) 327-3607 EVIDENCE SUBMISSION GUIDELINE FIREARMS EVIDENCE INTRODUCTION Generally, crimes of violence involve the use of a firearm. The value of firearms and fired ammunition evidence will depend, to a significant degree on the recovery and submission techniques employed at the shooting event or later during autopsy. Trace evidence adhering to surfaces should be collected and submitted to the appropriate agency. This submission guideline is designed to assist you in your laboratory examination request decisions. Any situation not sufficiently explained to your specific needs may be handled on an individual basis by contacting the laboratory at (317) 327-3670 or the Firearms Section Supervisor at (317) 327-3777. A. The following is a list of items most commonly submitted to the Firearms Section for analyses: 1. Firearms 2. Cartridge Cases 3. Cartridges 4. Fired Bullets / Fragments 5. Shotshells 6. Wads 7. Slug / Pellets 8. Victim’s Clothing B. The I-MCFSA Firearms Section can conduct the following analysis: 1. Examination of firearms for function and safety, including test firing in order to obtain test bullets, cartridge cases and shot shells. 2. Comparison of evidence bullets, fired cartridge cases and shot shells to determine if they were or were not fired by the same firearm or the submitted firearm. 3. Examination of fired bullets to potentially determine caliber and possible make and type of firearm involved. 4. Imaging and comparing fired cartridge cases and test shots from firearms to similar exhibits recovered in unsolved crimes utilizing the NIBIN system (see NIBIN Submission Guideline #14). -
No. 772,809, PATENTED OCT, 18, 1904. W S
No. 772,809, PATENTED OCT, 18, 1904. w S. S. LEACH. -- SINGLE TRIGGER MECHANISM FOR DOUBLE BARREI, GUNS, APPLICATION FILED SEPT. 9, 1903. NO MODEL. - 2 SHEETS-SHEET 1. NS ar as f3. Yefázard - oAlfoppeys No. 772,809, PATENTED 00T, 18, 1904, S. S. LEACH, - s: SINGLE TRIGGER MECHANISM FOR DOUBLE BARREL GUNS, APPLICATION FILED SEPT, 9, 1903, NO MODEL. 2 SHEETS-SHEET a. Patented October 18, 1904, No. 772,809. UNITED STATES PATENT OFFICE. SAMUEL S HERIDAN LEACH, OF EVERETT, PEN NSYLVANIA. siNGLE-TRIGGER MECHANISM FOR DOUBLE-BARREL GUNs. SPECIFICATION forming part of Letters Patent No. 772,809, dated October 18, 1904. Application filed September 9, 1903, Serial No. 172,505. (No model.) particularly pointed out in the appended To a/(, Luhon it may conce77: claims, it being understood that various Be it known that I, SAMUEL SHERIDAN changes in the form, proportions, size, and . LEACH, a citizen of the United States, residing minor details of the structure may be made at Everett, in the county of Bedford and State without departing from the spirit or sacrific 5 of Pennsylvania, have invented a new and use ing any of the advantages of the invention. 55 ful Firearm, of which the following is a speci In the accompanying drawings, Figure 1 is fication. a side elevation of a firearm constructed in This invention relates to certain improve accordance with the invention. Fig. 2 is a ments in firearms, and particularly to that similar view of a portion of the firearm, IO class of firearms in which a rifle-barrel is as drawn on a larger scale and illustrating the sociated with an ordinary form of double-bar firing mechanism adjusted in position for ac rel shotgun. -
User Instructions for the Co-Ax® Primer Seater Issue 5
User Instructions for the Co-Ax® Primer Seater Issue 5 1.0 GENERAL INFORMATION 4.0 FILL PRIMERS IN FEED TUBE Co-Ax Primer Seater allows for fast, easy seating with a built-in primer Primers for U.S. cartridges come in two diameters — large (0.210”) and flipper and loading tray. It seats primers flat and coaxially with the small (0.175”) — and two general types — rifle and pistol. Rifle primers cartridge case for accurate alignment and penetration. have more rigid cups and a hotter flash than pistol primers. The unique design allows the operator to eliminate “slop” when working The Primer Seater comes with two sizes of the Feed Tube with a specific cartridge, translating into consistent seating, reliable (011521-011LG and 011521-011SM). To fill the Feed Tube with primers, ignition, and reduced misfires. you may use the Primer Seater tray or the Primer Tube Loader (sold separately), as described below. Case priming is a critical handloading operation because, in order for ammunition to perform efficiently, consistent powder ignition is 4.0.1 FILL PRIMERS IN BUILT-IN TRAY mandatory. Crushed, broken-tipped, or protruding primers may be dangerous or cause variations in pressure. The case must be primed 1. Empty the primers from their package into the Seater’s tray. before adding new powder, so that your gun’s propellant powder is 2. Place the Large or Small Tube into the built-in channel, as shown in contained at the bottom of the case. Fig. 1. The anvil of the primer should face the slotted side of the Tube. -
Saturday, April 18, 2020
– Large, Grey Eagle/St. Rosa, MN Area – Collectible Tractors and 84 Firearms and Firearms, Collectible Tractors & Equipment Equipment Accessories Sell at 12:00 Noon Lifetime As we are transitioning into retirement, we will sell the following at auction located Collection Collectibles, Shop 1¼ miles north of St. Rosa, MN on County #17 & 35; or being 4 miles north of Melrose, MN on County 13, then 4 miles Equipment, Tools and east on County 17, then ¼ mile north on County 35; or being 1.75 miles south of Grey Eagle, MN on County 33 to the Rock Tavern, Miscellaneous then 4 miles south on County 47 & 35 to home #43311. Follow the Mid-American Auction Co. signs; roads will be plainly marked. Gas Engines, Antique Collectible Tractors & Collectible Items & Farm Equipment 2020 Nice Copper Clad Gas/ Farmall Super Saturday, April 18, Wood Combination C, PTO, Good Kitchen Range, One Metal, Auxiliary Sale Time: 10:30 A.M. Boser’s Lunch Wagon Owner Hydraulics, Sells with Woods 6-Ft. NOTE: The Voits have lived in this area for many years and are well known throughout the community. Don has enjoyed using and Mid-Mount Finishing collecting firearms as well as being an avid hunter and outdoorsman since he was a small boy. Don is also known as a fabricator making Mower, Tractor countless attachments to existing equipment as well as manufacturing many unique new items for customers, friends and neighbors Ser. #122435 1944 John Deere Hand-Crank Styled Model throughout Central Minnesota. After seeing his shop and expertise in many fields, I don’t think there is anything he couldn’t repair Model D Kohler B Tractor, PTO, Cultivator Lift, Good Metal, or make better. -
High-Speed Measurement of Firearm Primer Blast Waves
High-speed measurement of firearm primer blast waves Michael Courtney, Joshua Daviscourt, Jonathan Eng U.S. Air Force Academy, 2354 Fairchild Drive, USAF Academy, CO, 80840 [email protected] Amy Courtney Force Protection Industries, Inc., 9801 Highway 78, Ladson, SC 29456 [email protected] Abstract: This article describes a method and results for direct high-speed measurements of firearm primer blast waves employing a high-speed pressure transducer located at the muzzle to record the blast pressure wave produced by primer ignition. Key findings are: 1) Most of the lead styphnate based primer models tested show 5.2- 11.3% standard deviation in the magnitudes of their peak pressure. 2) In contrast, lead-free diazodinitrophenol (DDNP) based primers had standard deviations of the peak blast pressure of 8.2-25.0%. 3) Combined with smaller blast waves, these large variations in peak blast pressure of DDNP-based primers led to delayed ignition and failure to fire in brief field tests. Keywords: rifle primer, blast pressure, primer strength, muzzle velocity variations I. Introduction measurement method presented could be used, Over the years various surrogates have been used to together with mass sorting and measurement of quantify and compare performance of rifle primers velocity standard deviations to determine which including measuring velocity and standard deviation hypothesis is better supported in a given cartridge when the primer alone propelled a projectile from a and load. gun barrel,(1) measuring velocity, pressure, and standard deviation produced by a given primer in combination with a given powder charge and bullet,(2)(3) and measuring the size of the visible primer flash in photographs.(2)(3) This article presents a method and results for direct high-speed measurements of rifle primer blast waves employing a high-speed pressure transducer located at the Figure 1: Left: High-speed pressure transducer (on top) muzzle to record the blast pressure wave produced and signal conditioning unit. -
The DIY STEN Gun
The DIY STEN Gun Practical Scrap Metal Small Arms Vol.3 By Professor Parabellum Plans on pages 11 to 18 Introduction The DIY STEN Gun is a simplified 1:1 copy of the British STEN MKIII submachine gun. The main differences however include the number of components having been greatly reduced and it's overall construction made even cruder. Using the simple techniques described, the need for a milling machine or lathe is eliminated making it ideal for production in the home environment with very limited tools. For obvious legal reasons, the demonstration example pictured was built as a non-firing display replica. It's dummy barrel consists of a hardened steel spike welded and pinned in place at the chamber end and a separate solid front portion protruding from the barrel shroud for display. It's bolt is also inert with no firing pin. This document is for academic study purposes only. (Disassembled: Back plug, recoil spring, bolt, magazine, sear and trigger displayed) (Non-functioning dummy barrel present on display model) Tools & construction techniques A few very basic and inexpensive power tools can be used to simulate machining actions usually reserved for a milling machine. Using a cheap angle grinder the average hobbyist has the ability to perform speedy removal of steel using a variety of cutting and grinding discs. Rather than tediously using a hacksaw to cut steel sheet, an angle grinder fitted with a 1mm slitting disc will accurately cut a straight line through steel of any thickness in mere seconds. Fitted with a 2mm disc it can be used to easily 'sculpt' thick steel into any shape in a fraction of the time it takes to manually use a hand file. -
219 Zipper [PDF]
219 ZIPPER .365 12° .253 .506 .422 .252 .063 1.359 1.621 1.938 219 ZIPPER RIFLE: . F.N. Mauser Custom BULLET DIAMETER:. 0.224" BARREL: . 27", 1 in 14" Twist MAXIMUM C.O.L.: . 2.260" CASE: . Remington MAX. CASE LENGTH: . 1.938" PRIMER: . Federal 210 CASE TRIM LENGTH: . 1.928" Winchester introduced the 219 Zipper in 1937, seven years after the Hornet and two years after the powerful 220 Swift. Chambered in the fi rm’s Model 64 lever action varmint version of the famous Model 94, it never delivered the tack-driving accuracy customers demanded and consequently never became widely popular. Winchester discontinued manufacturing the Model 64 after WW II and the 219 Zipper became an orphan in 1961 when Marlin stopped chambering its Model 336 for the cartridge. The Zipper is now completely a handloading proposition since both Remington and Winchester have discontinued producing ammunition. A necked down 25-35 WCF (which can also be formed from 30-30 brass), the 219 Zipper was and is a respectable performer. Top velocities possible for the cartridge are only 100 fps lower than those which can be developed in the 224 Weatherby Varmintmaster. The Hornady 53 grain V-MAX™ or the 55 grain Spire Point are fi ne choices for the 219 Zipper and the cartridge is large enough to propel the wind-bucking 60 grain SP or HP up to an impressive 3300 fps. H 4895 is a very good powder throughout the entire range of available bullet weights and especially with the heavier selections. Hornady 22 caliber V-MAX™ bullets are extra potent in the Zipper. -
Amicus Brief
No. 09-256 444444444444444444444444444444444444444444 IN THE Supreme Court of the United States ____________________ DAVID R. OLOFSON, Petitioner, v. UNITED STATES OF AMERICA, Respondent. ____________________ On Petition for a Writ of Certiorari to the United States Court of Appeals for the Seventh Circuit ____________________ BRIEF AMICUS CURIAE OF MONTANA SHOOTING SPORTS ASSOCIATION AND VIRGINIA CITIZENS DEFENSE LEAGUE IN SUPPORT OF PETITIONER ____________________ E. STEWART RHODES DAVID T. HARDY* 5130 S. Fort Apache Rd. 8987 E. Tanque Verde Suite 215-160 No. 265 Las Vegas, NV 89148 Tucson, AZ 85749 (702) 353-0627 (520) 749-0241 *Counsel of Record September 30, 2009 Attorneys for Amici Curiae 444444444444444444444444444444444444444444 TABLE OF CONTENTS Page TABLE OF AUTHORITIES.......................iii INTEREST OF AMICI CURIAE.................... 1 S UMMARY OF ARGUMENT...................... 2 A RGUMENT................................. 5 I. THE COURT OF APPEALS AFFIRMANCE OF OLOFSON’S CONVICTION, DESPITE THE CONFLICT WITH STAPLES, PLACES MILLIONS OF GUN OWNERS AT RISK OF BECOMING “FELONS- BY-CHANCE,” IN DEROGATION OF THEIR RIGHT TO KEEP AND BEAR ARMS AND THEIR RIGHT TO DUE PROCESS, WHENEVER THEIR FIREARM HAPPENS TO MALFUNCTION AND AS A RESULT, DISCHARGES MORE THAN ONE SHOT AFTER A SINGLE PULL OF THE TRIGGER................ 5 A. The Courts Below Adopted a Definition of “Automatically” at Odds With Staples, Sweeping in Any and All Malfunctioning Semiautomatic Firearms That Fire More Than One Round Per Trigger Pull, Even Where the Firing is Out of Control of the Shooter, or Where the Firearm Jams and Stops Firing Before the Trigger is Released or the Firearm is Empty.. 5 B. All Semiautomatic Firearms Are Susceptible to a Wide Variety of Malfunctions That Can Cause More Than One Round to Fire Per Trigger Pull ......................... -
Driving Bands
These are the bands placed around projectiles to prevent the forward loss of gas around the projectile. They are usually made from copper, gilding metal and sometimes sintered iron. The modern day has intruded here also and they will now be encountered in plastic versions. Their use and introduction can be traced back to the time when cylindrical projectiles first appeared. The original round cannonball because of its requirement to be loaded from the muzzle had no method of sealing the bore. In fact had the ball been tight enough to seal the bore you wouldn't have been able to load the weapon at all. All this changed when the Cylindro-ogival projectile arrived on the scene along with the not-new breech loading weapons. (They had been tried many years before but failed through the inability of the gunners to adequately seal the breeches). A round cannonball needs no stabilizing. Because of its spherical shape it is inherently stable. Ask any cricketer, golfer or baseballer. On the other hand the Cylindro-ogival projectile is inherently unstable. It will not fly very well at all unless it is stabilized in some way. The two basic methods of stabilizing an elongated projectile are: • Fin stabilization and, • Spin stabilization. Both of these methods are in current use in the world today. To provide adequate stability for a projectile using fins there needs to be FIN STABILISATION. some sort of protection for the fins. The arrow of your ancient bowman would not survive in the bore of a cannon without some form of protection.