Welcome to Part 4 of the Saga of the .220Redline! Long before endeavoring to build this wildcat, I’ve accepted that running a cartridge nearer the edge of traditional reasoning is not without consequences. Sparking off almost 70 grains of smokeless powder down a .224 caliber hole is rather extreme!
… all three kills were nearly identical: a .224″ entrance, Jell-O-lungs, and a modest exit hole…
…Bullet selection would be from various 69-80.5grain bullets on hand, from Hornady, Berger, Sierra & ‘Swampworks’ line of custom JLKs… Then, I set out about seeing how fast a 75 JLK might go. Turns out, RL-33 yielded a whopping 4088 fps! That load showed…
…being an avid predator hunter, I’ve gravitated toward ‘hotrod’ type cartridges… Maximum point blank range and terminal performance on critters are key elements for a ‘hotrod’ to improve upon, over factory available cartridges. Ideally, the performance gains should justify the extra time, effort & expense of wildcatting… What if I necked a SAUM case down to .224…