Roger felt that the excess air space in the case was the problem and eliminated all loads with more than 1/4 inch or more air space between the powder and the base of the bullet. In his second article Roger works up to a max of 57 grains of IMR 4831 with the 105 grain projectile for 3,224 fps with no problems. Velocity was 2,800 feet per second, a pedestrian load for the. Roger found that he could minimize the problems by elevating the muzzle prior to firing, seating the bullet backwards or increasing the jump to the lands. This should have been a mild load but blew primers, case heads and extractors. Roger used 49 grains of IMR 4831 in fire formed cases with Speer 105 grain spitzer projectiles. Roger's first article dealt with his struggles with start loads. It was basically a 6 mm-06 Max with the shoulder moved forward and increased to 35 degrees. The 240 Gibbs was a wildcat from the 1950's developed by Rocky Gibbs. I will retrieve the issue from the banana box storage system and report any additional bits I find.Īrticles appeared in Handloader Magazine in 19 written by Roger Stowers about loading for the 240 Gibbs. There was an excellent article on SEE in Handloader Magazine some years back from memory in line with what shooternz has given above. They probable other theories, Until it happens in controlled condition no one knows, So don't load below recommend start loads and you can't go wrong, well you can but that is another story.Greetings All, ![]() Igniting it all at once, No two is that the primer fires and starts the projectile moving it stops when it hits the rifling and then the powder ignites and hits a pressure spike, One is that the powder lays flat on the bottom of the case while in the chamber below the flash hole when the primer fires the flash does the length of the powder The right weather conditions to trigger it, One thing every one agrees on that it is light charges of slow burning powder that causes it, there are two main theories ![]() So it must be rarer than getting struck by lightening, The labs maybe too well controlled Temperature and Humidity wise for it to happen it may need ![]() Solid copper Controlled Fracturing bullets meet the criteria of states and jurisdictions calling for lead free projectiles.Photos pop up on websites once in a while of rifles having S.E.E Secondary Explosive Effect or detention, The labs have never managed to duplicate it I consider the Controlled Fracturing to be the ULTIMATE self-defense bullet and the 9mm 115 grain Controlled Fracturing is what I carry daily.Ĭontrolled Fracturing bullets are currently available in the following caliber diameters. Unlike traditional expanding bullets which mushroom and dramatically limit the bullet's penetration and provide only one wound path, Lehigh Defense's Controlled Fracturing ammunition creates an initial energy transfer, multiple wound paths, and a deep penetrating base with a sharp front cutting edge for extreme terminal performance. The bullet shank, now back to bore diameter, continues penetrating straight and deep along the initial impact path. Controlled Fracturing bullets are produced from solid copper and are pre-stressed at specific points so that after a predetermined penetration depth, the razor-edge petals deploy, releasing an energy spike and then separate and radiate outward from the primary path of the bullet. These bullets are designed to deliver maximum terminal performance. Lehigh Defense originated Controlled Fracturing Technology.
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