Possum Hollow Kwick Case trimmer and RCBS X-Dies Another Option to Consider
Lone_Gunman.
Both SlamFire1 and ocabj are correct that either the Gracey or the Giraud make short work of trimming brass. Unfortunately both are very expensive, however, I believe I have found the next best option under $50. It's called the Possum Hollow Kwick Case trimmer ($20), a Sinclair power adapter ($14), and a RCBS Deburring tool ($11). The Possum Hollow Kwick Case trimmer uses the neck and shoulder datum to trim the case to the correct Lent just like the Gracey and the Giraud, but it doesn't deburr or chamfer the case so that is why you need the RCBS Deburring tool which also fits in the Sinclair power adapter. I can trim, deburr, and chamfer 1,000 rounds in just over an hour. Also if you will use the RCBS X-Die to full length resize instead of a standard full length die you will only need to trim your brass once, before you ever run it through the X-Die. The mandrel in the X-Die is designed so that it doesn't stretch your during resizing so you never have to trim the brass again- ever! If you have the money to spend or you process thousands of rounds of brass a month then buy either Gracey or the Giraud. However, if you are on a budget or would rather spend the $365 for something else consider the Possum Hollow Kwick Case trimmer. I maintain a 5,000 round inventory for my AR and since I have switched to X-Dies for full length resizing I only trim new brass I brass buzzard at the range or buy to add to my inventory which isn't much since I am on my 10th reload on some of my brass and none of it has grown to it's maximum length or split. occasionally I will have to toss case into the scrap barrel because the primer pocket gets enlarged.