ICL cartridges (ICL stands for Increased Case Load) are rare hunting wildcat cartridges developed by Arnold & Vern Juenke, gunsmiths who owned Saturn Gun Works in Reno, Nevada. ICL cartridges are wildcats based on conventional cases in use at the time. They feature a 45 degree shoulder and the sides are straightened out compared to the parent cartridge. Most of the cartridges are considered improved cartridges since they simply create more powder space while maintaining the same caliber as the parent cartridge. Most of the line of cartridges carries an animal name in addition to a numeric designation. It is one of the most complete lines of wildcats, having a large number of cartridges with a variety of calibers. Quality Cartridge is the only manufacturer making new brass cases correctly headstamped for many ICL cartridges. .22 caliber cartridges .22 ICL Gopher Based on an improved .22 Hornet, it is similar to the K-hornet. Performance using a bullet is . .218 ICL Bobcat Based on the .218 Bee. It's similar to the Mashburn Bee and the R-2 Lovell and can move a bullet at .224 ICL Benchrester Based on the .250-3000 Savage case, with performance similar to a .219 Wasp. Performance for a bullet is , for a bullet is , and for a bullet is approximately , .219 ICL Wolverine Based on a .219 Zipper Improved, the Wolverine is useful for varmint hunting, such as woodchucks. Performance with a bullet is approximately and with a bullet is approximately .224 ICL Marmot The Marmot is based on the .220 Swift with improved characteristics such as steeper sides and shoulder angle, but is not improved in the sense that you cannot fire form factory ammunition in its chamber. Performance with a bullet is approximately and with a bullet is approximately . P.O. Ackley noted that it is more efficient than standard .220 Swift improved cartridges, and not over-bore. .24-.26 caliber cartridges .25 ICL Magnum The .25 ICL is a necked-down improved version of the .264 Winchester Magnum. It is similar to the .257 Weatherby. Performance with a bullet is approximately and with a bullet is approximately . .25-35 ICL Coyote Based on the .25-35 Winchester and similar to the .25/35 Ackley Improved. Can also be made by necking-down .30-30. P.O. Ackley calls it "efficient and surprising". Performance with a bullet is approximately and with a bullet is approximately . .257 ICL Whitetail