NMexJim
Member
My suggestion would be to try a few of the less expensive methods and see what works for you. Most of my 223 and even 308 brass is once fired GI stuff and I normally discard after 5 loadings. After watching countless videos and before online days I tried a few methods, the most recent being induction heating. It's like cooking a steak where you cross a fine line between excellent and overdone. In my case there wasn't much if any real gain to be had so I just stopped pursuing it but for others there is a good enough gain to make it worthwhile. Again, my advice is try several methods, find what works for you and then run with it. Be it induction or using a torch flame with a suitable gas it becomes a matter of, as mentioned, dwell time verse heat.
Best of Luck
Ron
This is true. I use a .243 for varmint hunting. I load in lots of 100 and keep track of my firings. I bump my shoulders back .002.
When I feel resistance in bolt lift, then I know it's time to anneal. That my brass is getting hard. If you don't shoot alot then you may never need to.