With either the RCBS or the Forster, you can buy a 3-in-1 cutter. It will trim length, plus deburr the inside and outside, simultaneously. I own both. I much prefer the Forster. You can see the cutter here Reloading Tools | Gunsmithing Tools | Reloading Press | Reloading Dies | 3-in-1 Cutter The Forster is calibre specific (note I said calibre, not cartridge). Therefore there is one to do .224" calibre case mouths (.222 R, .22-250 etc), another to do 7mm case mouths ... The Forster cutter is setup at the factory and doesn't ever need adjusting. The Forster stand comes in three lengths, the standard length does up to .308 Win. If you have a longer cartridge (e.g. .30-06) you need the longer stand. The Forster 3-in-1 works brilliantly and is a real time saver. But each cutter head is about £40.
The RCBS takes a different approach. The cutter is also calibre specific (and there is a wider choice of calibres) but you have to spend 10 minutes setting it up. The cutter trims length and deburrs inside the case mouth. You have to adjust the outside deburring cutter to the correct height. It's a bit of a fiddle but not a great fiddle. My external cutter fails to properly deburr the outside. I have written to RCBS about it and need to send them some close up detailed photographs. Even if I hadn't experienced this problem, I much prefer the simplicity of the Forster. The RCBS 3-in-1 cutter heads are a similar price to the Forster heads.
-JMS
