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Just curious. What was the steel spec and heat treatment method for Rem 03A3 receivers? The had/ have a reputation for a tough case that is difficult to drill and tap.
Just curious what they were made from, eg 4140, 4640, 8620 etc and what heat treatment was used.
Just curious what they were made from, eg 4140, 4640, 8620 etc and what heat treatment was used.