ORIGINAL: handloader1
It sounds like a light crimp. What brand name are your dies? Did you trim all cases the same size? Sometimes if the cases are not all the same size, the case mouth (or crimp) may miss the cannelure. I like a heavy crimp on .44 Rem. Mags.; I will crimp them to the point just before the case turns into a accordion. Good luck.
ill second that, on my magnums wether it be a 357 or 44 mag I like a good tight crimp especially if their gonna be used in my lever guns because of the combination of recoil and spring tension in the magazine tube.