I used a Yo-Dave kit and had mine down to a safe 6 0z. I am not sure that is possible with all 452's because there may be enough difference in manufacturing tolerances that some may go that low and others not, but as inexpensive as the kit is it would be worth a try.

drover

223 Rem, my favorite cartridge - you can't argue with truckloads of dead PD's and gophers.

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