There are two questions I receive with some frequency 1. The .44 Magnum is one hard-hitting round, but there’s a time when serious handgun hunters turn toward more powerful calibers. If you can take it, the gun can take it. Jaywalker Member. I'd like to use the Deerslayer this fall for whitetail. 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. Also excessive pressure can be caused by brass being to long. 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. As a result, gunmakers offered fewer revolver models chambered in .44 Special for several years. We are often asked how performance/pressure parameters were established for our 45-70 Hammerhead Ammo. Rougher is -.009 thou, unless noted. (Refer to Hodgdon’s load data.) 2. Founded in 1926, SAAMI … The SAAMI maximum pressure standard for the 44 SW special is 15,500 PSI. My only compressed loads at present are a 44 Rem Mag Marlin 1894 loading with H110 and a 375H&H load with N150. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI). Bullet Pull and Heavy 44 Loads; 44Mag and/or 45 Colt, Which way to go? 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. I thought I would attempt … When do I anticipate developing some class ? those proved to 960 bar (transducer) or, previously, 850 bar (crusher)), or magnum proof shotguns (i.e. This is a CYA response as +P (plus pressure) would by definition exceed SAAMI MAXIMUM average pressure of 28,000 CUP. The .44 Magnum has earned a reputation as one of the most powerful handgun rounds available for home defense or hunting. But as for asking it to contain pressure far beyond that, NO THANKS! Joined: May 28, 2003 Messages: … Driftwood Johnson, SASS #38283 1,042 Posted June 21, 2011. Regarding the .44-40, today’s reloading manuals usually list recipes … Depending on the method of pressure testing the manufacturer uses. All Taurus revolvers can shoot +p except the M856, but is .44 magnum SAAMI recognized? All weapons manufactures adhere to the same standards. At the time, SAAMI used a non-linear unit of measurement known as a “copper unit of pressure” (c.u.p.) Discussion Starter • #1 • Sep 17, 2014. 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. 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. SAAMI (Small Arms and Ammunition Manufacturers Institute) The organization that establishes firearm standards in the United States. 44 Remington Magnum Pistol SAAMI Chamber Reamer. Standard pressure .38 Special was capped at around 18,900 c.u.p. The .44 Magnum is a serious handgun round and the second revolver cartridge to bear the name “Magnum” on its head stamp. 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. What are the pressure signs to look for when loading widely accepted, yet highly suspected, high pressure .45-70 loads in the 1895 Marlin ? Mag. Ruger would discourage any one from exceeding 36,000 psi. 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). If not in … The trim to length is equivalent to the minimum case length. 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? Some … Just can't seem to find reloading info for the carbine, but plenty for handguns. The classic “Skeeter Load” is a 240-250 grain LSWC with 7.5 grains of Unique in a 44 Special casing. I'm trying to find reloading data for the 300 gr Hornady XTP. 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. (now, 17,000 p.s.i.) The way the cases looked in the cylinder seems to indicate that the problem might be in only one or two chambers. 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. 44 Magnum Barrel Liners / Blanks. Max loads for .44 Magnum that RRH's and DW's can shoot are in the 1550 ft-lbs energy range. Some cartridges do not have either a PSI or CUP listed, and they are omitted. Threaded 5/8-24 NF on Chamber and Muzzle. If you … That is what it was designed for. 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. Perhaps the hotter CCI's take the pressures up into the SAAMI max range in order to achieve their higher velocities. pressures significantly in excess of the pressures associated with standard ammunition. .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. 3 Posts . L6: 3.700 inch = 93.98 mm Barrel Length: 26.0 inch = 660.4 mm Predicted Data for Indicated Charges of the Following Powders. So most manufacturers have downloaded some of their ammo, and you'll find that a lot of today's published reloading data is … (SAAMI) Bullet: .308, 180, Flatline - F T/R Useable Case Capaci: 81.648 grain H2O = 5.301 cm³ Cartridge O.A.L. 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. These cartridges, if they are to be fired from standard proof shotguns (i.e. When he talks, people … I suspect it had more to do with more accurate pressure measurement methods when electronic transducers took over from copper cylinders getting hammered shorter. 44 Mag; 45 Colt ; 454 Casull ; 45-70; 540 BFR ONLY ; Terms & Conditions; Contact Page; Garrett's Commentaries. These … Perhaps it … and the higher pressure .38 Special +P was capped at about 22,200 c.u.p. The pressure can't be increased, for there is no margin left. COAL stands for … .44 Magnum & .357 Magnum were both reduced at the same time. The document even includes info on pressure terminology, headspace gauges, and test barrels. The trim to length is equivalent to the minimum case length. Barrel Liner Specifications . As for compressed loads, I haven't seen issues. 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. It is all too easy to … In .44 Mag, that means any load over about 1250 ft-lbs of energy, or anything in the +P or +P+ category. Both are within book values but compressed to around 105-110% load density. That load will usually exceed the SAAMI pressure … by ©RGI Media, Inc - Published with permission. 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. Compared with .22 Magnum, with its higher case capacity, peak pressure would probably mirror that of the CCI hot loads, up near the SAAMI … Some cartridges do not have either a PSI or CUP listed, and these values are omitted. Most pressure curves I've seen for black powder show peak pressure in about 90 - 125 microseconds, vs. smokeless in 150 - 250 microseconds. Pressures, Factory Loads 44-40 H.V. View All; CHAMBER PRESSURE & THE MODERN 45-70 LEVER-GUN. The first level is up to the actual SAAMI … More details . 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) … Outside Diameter Details .645″ for 20 & 28″.620″ for 11″ and Shorter Liners. (1903-1938,) - 22,000 CUP (Exceeds SAAMI MAP) 44 Magnum - 22,100 up to 40,000 CUP PART 2, https://youtu.be/IKudU8QPdco 57 50 49 .22-250 65 59 … The .44 Remington Magnum made the scene in 1956, while Ruger and Smith & Wesson vied for the distinction of being the … Condition: New product. 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. Max chamber pressures are set at relatively lower levels corresponding to the reduced strength capabilities of firearms that are more than a century old. Ken from … A. Smith. Link to post Share on other sites. 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. Items that are in stock will ship within 7 days. J. That said, their very heaviest .44s are not recommended; the slow-twist barrel may not … The industry Maximum average pressure for the 44 Magnum is 36,000 psi. CARTRIDGE: .300 Win. While most pistol cartridges will … Cartridges with +P Pressures, list both the standard and +P Pressure. 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. Cartridges with +P Pressures, list both the standard and +P Pressure. On a final note, all my … Magnum cartridges, such as .357 Magnum or .44 Magnum, are usually developed by greatly increasing the working pressure of an existing cartridge, and the resulting cartridges are typically different in some small manner to prevent them from being chambered in firearms not specifically designed for them.For example, the .357 Magnum is slightly longer … Presenting an approach for how the small ammunition manufacturer and technical handloader can best use SAAMI Voluntary Pressure Standards. I've also tested lightly compressed loads in .270win (RL22) and 6.5CM (various powders). It should be since the .44 Magnum operates at about 2.5 times the maximum SAAMI pressure of the .45 Colt. 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. 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. At The Range. Recently the .44 Special … All the top-end reloading data with pressure-tested data shows .44 Magnum loads maxing out at 35,000 psi (or 38,000 CUP). Driftwood Johnson, SASS #38283. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI). In recent years the .44 Magnum… Thanx. Outside Diameter Details .640″ Chambered for 44 Magnum. 41 37 .225 Win. Matching Maximum Pressure: 56000 psi, or 386 Mpa These calculations refer to your specified settings in … The SAAMI specs call for a limit on the .44 Magnum of 36k psi (40k CUP). It's capable of taking down extremely large game. 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. SAAMI, QuickLoad, lever action rifles and other curiosities…. rc rcmodel, Dec 24, 2012 #11. 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. (Now chambered full SAAMI Specifications) Rifle dimensions for our 44 Magnum Barrel Liners … The SAAMI pressure limit for the 44 Special is 15,500 psi. 59 50 51 .223 55 62 52 54 .219 Zip. 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. 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. 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