Trying to determine choke in VH

[Bindlestiff]

check the FAQ "What are chokes and why do I need to know?" it may help answer your question.

[Austin W Hogan]

0.696 seems to be the prevalent value for full choke in fluid steel Parkers. Bore diameters vary, and so do choke tapers.

Have some fun and fire a few shots at the patterning board; that is the only real way to find out.

Best, Austin

[Bill Murphy]

Your measuring device is not working well. A dime should not drop through a .691 bore. A dime is .705.

[Tom Taylor]

After Bill Murphys advice I obtained a better instrument to measure the chokes.
Left is .722 and Right is .720
From what I can determine these are close to skeet choke.
Is this a common choke for a 1924 VH 12 gauge with 28 inch barrels