It's capable of taking down extremely large game. The SAAMI specs call for a limit on the .44 Magnum of 36k psi (40k CUP). While most pistol cartridges will … by ©RGI Media, Inc - Published with permission. Bullet Pull and Heavy 44 Loads; 44Mag and/or 45 Colt, Which way to go? On a final note, all my … L6: 3.700 inch = 93.98 mm Barrel Length: 26.0 inch = 660.4 mm Predicted Data for Indicated Charges of the Following Powders. I suspect it had more to do with more accurate pressure measurement methods when electronic transducers took over from copper cylinders getting hammered shorter. So most manufacturers have downloaded some of their ammo, and you'll find that a lot of today's published reloading data is … Discussion Starter • #1 • Sep 17, 2014. Ruger would discourage any one from exceeding 36,000 psi. 44 Magnum Threaded Barrel Rifled and also Chambered for 44 Magnum or 44 Special All the liners / blanks we sell have been tested and can withstand the pressure of the round they are chambered for standalone. .44 Magnum & .357 Magnum were both reduced at the same time. The .44 Magnum is a serious handgun round and the second revolver cartridge to bear the name “Magnum” on its head stamp. DOWNLOAD SAAMI Rimfire Cartridge/Chamber Drawings >> SAAMI, the Sporting Arms and Ammunition Manufacturers’ Institute, is an association of the nation’s leading manufacturers of firearms, ammunition and components. Chambered for 44 Magnum … These cartridges, if they are to be fired from standard proof shotguns (i.e. When do I anticipate developing some class ? SAAMI, QuickLoad, lever action rifles and other curiosities…. The trim to length is equivalent to the minimum case length. The industry Maximum average pressure for the 44 Magnum is 36,000 psi. Cartridges with +P Pressures, list both the standard and +P Pressure. That is why in .45 LC AND in .44 Mag there are RUGER REDHAWK/DAN WESSON/CUSTOM ONLY loads that cannot be safely shot in any S&W, Taurus, or Colt. Matching Maximum Pressure: 56000 psi, or 386 Mpa These calculations refer to your specified settings in … 44 Mag; 45 Colt ; 454 Casull ; 45-70; 540 BFR ONLY ; Terms & Conditions; Contact Page; Garrett's Commentaries. Pressures, Factory Loads 44-40 H.V. (now, 17,000 p.s.i.) J. Mag. At the time, SAAMI used a non-linear unit of measurement known as a “copper unit of pressure” (c.u.p.) That is what it was designed for. Company president Anthony Imperato states that the Big Boy can handle any loadings within the SAAMI pressure limit (36,000 PSI for the .44 Magnum). Condition: New product. Max loads for .44 Magnum that RRH's and DW's can shoot are in the 1550 ft-lbs energy range. View All; CHAMBER PRESSURE & THE MODERN 45-70 LEVER-GUN. Driftwood Johnson, SASS #38283. I've also tested lightly compressed loads in .270win (RL22) and 6.5CM (various powders). 44 Remington Magnum Pistol SAAMI Chamber Reamer. The .44 Magnum has earned a reputation as one of the most powerful handgun rounds available for home defense or hunting. The .44 Magnum is one hard-hitting round, but there’s a time when serious handgun hunters turn toward more powerful calibers. 41 37 .225 Win. Today’s SAAMI pressure limits for the .44-40 and many other vintage blackpowder rounds are typically specified in copper units of pressure (CUP). As a result, gunmakers offered fewer revolver models chambered in .44 Special for several years. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI). The classic “Skeeter Load” is a 240-250 grain LSWC with 7.5 grains of Unique in a 44 Special casing. All Taurus revolvers can shoot +p except the M856, but is .44 magnum SAAMI recognized? Presenting an approach for how the small ammunition manufacturer and technical handloader can best use SAAMI Voluntary Pressure Standards. Ken from … Outside Diameter Details .640″ Chambered for 44 Magnum. Founded in 1926, SAAMI … pressures significantly in excess of the pressures associated with standard ammunition. More details . Yes, a Ruger that has been factory chambered for 44 Magnum can be shot all day long with SAAMI spec 44 Magnum loads with no ill effects. 3 Posts . Joined: May 28, 2003 Messages: … to evaluate internal case pressures (now superseded by the more precise pounds per square inch, or p.s.i.). So if it is a book load, it is safe in a Contender, the much stronger Encore and every revolver that is chambered for that cartridge. The 44 Mag in its SAAMI restricted pressure range is a different beast and it is a good and proven killer but with the above mentioned loads it is leaving quite a bit of killing potential on the table. Recently the .44 Special … Depending on how it's loaded, the .44 Magnum delivers between 900 and 1,500 foot pounds of energy; by contrast, the .45 ACP's power ranges between 400 and 600 foot pounds. 59 50 51 .223 55 62 52 54 .219 Zip. Most pressure curves I've seen for black powder show peak pressure in about 90 - 125 microseconds, vs. smokeless in 150 - 250 microseconds. Jaywalker Member. It should be since the .44 Magnum operates at about 2.5 times the maximum SAAMI pressure of the .45 Colt. The hype and excitement surrounding the introduction of the .44 Magnum in the mid-1950s eclipsed the .44 Special, causing the latter to fall out of popularity with firearms manufacturers. (now … There are two questions I receive with some frequency 1. Link to post Share on other sites. Depending on the method of pressure testing the manufacturer uses. The SAAMI maximum pressure standard for the 44 SW special is 15,500 PSI. And they found out what the pressure really was. 57 50 49 .22-250 65 59 … (1903-1938,) - 22,000 CUP (Exceeds SAAMI MAP) 44 Magnum - 22,100 up to 40,000 CUP PART 2, https://youtu.be/IKudU8QPdco It is a tribute to the quality of modern .45 Colt brass that it has proven safe (in Blackhawk and Contender guns only) with maximum pressures about 57% greater than the SAAMI limit. I can see where you could get near the velocities of Buffalo Bore using the higher end of SAAMI 38 Spl +P specs (MPSM), perhaps with 2400 and 158 gr swc. If you’re a glutton for shooting expensive ammo, Buffalo Bore makes Big Boy-safe .44 Magnums that deliver nearly 2,000 lb-ft of muzzle energy. CARTRIDGE: .300 Win. The .44 Remington Magnum made the scene in 1956, while Ruger and Smith & Wesson vied for the distinction of being the … These … What are the pressure signs to look for when loading widely accepted, yet highly suspected, high pressure .45-70 loads in the 1895 Marlin ? (SAAMI) Bullet: .308, 180, Flatline - F T/R Useable Case Capaci: 81.648 grain H2O = 5.301 cm³ Cartridge O.A.L. That load will usually exceed the SAAMI pressure … (Now chambered full SAAMI Specifications) Rifle dimensions for our 44 Magnum Barrel Liners … Perhaps the hotter CCI's take the pressures up into the SAAMI max range in order to achieve their higher velocities. My only compressed loads at present are a 44 Rem Mag Marlin 1894 loading with H110 and a 375H&H load with N150. +P vs. magnum cartridges. those proved to 960 bar (transducer) or, previously, 850 bar (crusher)), or magnum proof shotguns (i.e. Buffalo Bore Outdoorsman 38-44 SAAMI psi limits The MPSM (probable sample mean) for the 38 Spl +P 158 gr is 21.5k psi while MAP (average) is 20k psi. Rougher is -.009 thou, unless noted. Items that are in stock will ship within 7 days. But as for asking it to contain pressure far beyond that, NO THANKS! The pressure can't be increased, for there is no margin left. COAL stands for … 20 thoughts on “Unsolved: 44 Magnum Over-Pressure Mystery” Keith Yates says: June 13, 2019 at 6:03 pm One thing I didnt hear you mention was how heavy of a roll crimp was used. A. Smith. When he talks, people … Some … The way the cases looked in the cylinder seems to indicate that the problem might be in only one or two chambers. Driftwood Johnson, SASS #38283 1,042 Posted June 21, 2011. Because there are modern firearms that can safely shoot more powerful ammunition than the SAAMI limits, the firearm/ammunition industry has recognized three levels of ammunition for the 45-70. At The Range. In recent years the .44 Magnum… For the person who reloads and is willing to slightly exceed the SAAMI limits, the 44 Special is capable of both excellent accuracy and excellent terminal performance. The first level is up to the actual SAAMI … In .44 Mag, that means any load over about 1250 ft-lbs of energy, or anything in the +P or +P+ category. (Refer to Hodgdon’s load data.) .218 Bee 46 40 41 .22 Rem Jet 37 40 .221 Rem 46 52 5.6x50R 49 44 .222 50 54 46 46 .222 Mag. All weapons manufactures adhere to the same standards. This is a CYA response as +P (plus pressure) would by definition exceed SAAMI MAXIMUM average pressure of 28,000 CUP. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI). Please Select Reamer Type: Reamers are available in Carbide for production run needs: Please contact a sales associate if you have any questions or if you would like to order a carbide reamer. Rifled and also Chambered for 44 Magnum All the liners / blanks we sell have been tested and can withstand the pressure of the round they are chambered for standalone. those proved to 1370 bar (transducer) or, previously, 1200 bar (crusher)) must not exceed the maximum admissible service pressure of 74 MPa (new units megapascals, in place of the old 740 bar) … Thanx. That said, their very heaviest .44s are not recommended; the slow-twist barrel may not … All the top-end reloading data with pressure-tested data shows .44 Magnum loads maxing out at 35,000 psi (or 38,000 CUP). If you can take it, the gun can take it. Threaded 5/8-24 NF on Chamber and Muzzle. Cartridges with +P Pressures, list both the standard and +P Pressure. Regarding the .44-40, today’s reloading manuals usually list recipes … The small ammunition manufacturer and the serious handloader are more and more able to get reasonably accurate chamber pressure readings from strain gage pressure test equipment. I've read that SAAMI lowered the maximum chamber pressure for .357 Mag because manufacturers were putting out smaller .357s - even with new materials like scandium and titanium, a J-frame probably isn't as strong as a steel N-frame. Barrel Liner Specifications . rc rcmodel, Dec 24, 2012 #11. and the higher pressure .38 Special +P was capped at about 22,200 c.u.p. I'm trying to find reloading data for the 300 gr Hornady XTP. Also excessive pressure can be caused by brass being to long. Outside Diameter Details .645″ for 20 & 28″.620″ for 11″ and Shorter Liners. He said they have extensively tested it and determined it to be strong enough to withstand the pressures given by standard .44 Magnum factory ammunition. 2. Perhaps it … Such pressures may affect the useful life of the firearm or exceed the margin of safety built into many revolvers and could therefore be DANGEROUS. Max chamber pressures are set at relatively lower levels corresponding to the reduced strength capabilities of firearms that are more than a century old. Just can't seem to find reloading info for the carbine, but plenty for handguns. Some cartridges do not have either a PSI or CUP listed, and these values are omitted. SAAMI (Small Arms and Ammunition Manufacturers Institute) The organization that establishes firearm standards in the United States. piezo crusher SAAMI CIP SAAMI CIP other .17 Hornet 50 .17 Mach 4 60* 52 .17 Fireb 55 .17 Rem 63 62 52 53 .204 Ruger 58 59 .22 Short 21 .22 Long 24 .22 LR 24 .22 WMRF 24 5.6x35R 39 35 .22 Hornet 49 44 43 41? Firearms chambered for the 44 Mag must be able to stand the SAAMI Specifications that are established for that cartridge which is 36,000 PSI or 40,000 CUP's. If not in … Some cartridges do not have either a PSI or CUP listed, and they are omitted. The SAAMI pressure limit for the 44 Special is 15,500 psi. Both are within book values but compressed to around 105-110% load density. The trim to length is equivalent to the minimum case length. 44 Magnum Barrel Liners / Blanks. Compared with .22 Magnum, with its higher case capacity, peak pressure would probably mirror that of the CCI hot loads, up near the SAAMI … Standard pressure .38 Special was capped at around 18,900 c.u.p. 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