face it, there's no better seater than the Forster unless you use something like a Wilson inline die. Believe me, I've tried too many others in the past.
The Forster seater can be made better with a little work. If you have a custom chamber, then use the reamer to create a better seater. The seater plugs often need a tweak when using high B.C. bullets.
My first use of the Forster seater came by accident. I was shooting a custom barreled T/C in .222 Rem. N.M. with a .246 chambered neck. Brother loaned me an RCBS die set, and was shooting M.O.A. at one hundred yards. I wanted something better as I planned on shooting crows out to 250 yards. Ferris Pindell traded a home built .222 in line die he had that was a near exact fit to my chamber. Boom! I was well into the .65" five shot range at 100 yards with zero load development. While this was going on I picked up a new Forster die set at a gun show. Fred Sinclair sent me a micrometer head, and the experiment was on. I soon found the Forster seated bullets very accurately, and with little run out. The difference was about two tenths. I later got the T/C into the mid to high fives with a 50 grain bullet over XMR2015BR and BLC2. Turns crows into a black cloud of feathers at 200 yards! Had I to do over, I'd have reamed a seater sleeve
gary