Block tubing, got some questions.

McMaster shows seamless soft copper tubing. But only in standard sizes.

I also found brass tube in 9/16 OD, never worked with brass before, but if it work hardened while I was peening it anneals at low temps.

Still want to open it up to 5/8, leaning towards making a mounting plate for the mag base, that will give me a big enough footprint as well as we m the extra inch in height I need.

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