Any Idea As To How Old These Are?

[Austin W Hogan]

I think I may have posted these before. This is 20 ga version was purchased in the late 1950's. My best friend and neighbor was a real heavy load man. He had a Browning Auto 5 Magnum and a Browning 20 to match. These loads required a special buffer ring in the Browning to prevent the bolt from over returning. If he forgot to change rings the Browning became a single shot using heavy 1 oz 20 ga loads.

Best, Austin

[Mike Stahle]

Got an answer to the age question on another forum.
They were made week 6 in 1946.

Next question, what exactly is maximum load?