I took my Swiss M78 out for some range time. It has been an excellent shooting rifle. I have a lot of CCI Large Pistol Magnum primers so I gave them a try. I tried them with and without Dacron filler and there was no appreciable difference. Loads are 18 grains of 2400, Lee 310 (actually weigh about 295), sized .427, without gas checks, and lubed with Liquid Alox. Cases are .348 trimmed to 1.65 OAL 2.2.I also tried a home made target with a horizontal and vertical line. I like this target for iron sights at 50 yards and think I will have a print shop make me up a bunch of them.