If they look fine and you aren't trimming them, then there doesn't seem to be any reason I can think of to chamfer or deburr what's already chamfered and deburred. I've certainly never bothered.
I just inside chamfer the case mouth enough to make it shiny again as a way to show that the case is ready to be loaded. Really only requires a slight touch.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: High Binder</div><div class="ubbcode-body">I use a three way trimmer so my brass gets trimmed to length, chamfered and debured ever single time and all in one two-second operation.</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: tigerfan9</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: High Binder</div><div class="ubbcode-body">I use a three way trimmer so my brass gets trimmed to length, chamfered and debured ever single time and all in one two-second operation.</div></div>
What tool are you using? </div></div>
RCBS Trim Pro Case Trimmer 3-Way Cutter. It's awesome, I use one for each caliber I reload for.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Beef</div><div class="ubbcode-body">Only chamfer and deburr if you've trimmed, its a wasted effort otherwise. </div></div>
I've found tumbling in stainless will peen casemouths enough, even after just one hour, that I can feel the difference whether or not I inside-chamfered, when I seat bullets.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body">I've found tumbling in stainless will peen casemouths enough, even after just one hour, that I can feel the difference whether or not I inside-chamfered, when I seat bullets. </div></div>
If I let the batch go for the whole 3-4 hours in SSM, the chamfer is totally gone, and I usually have to redo them all.