Trying to determine choke in VH

[Tom Taylor]

Hoping someone can answer this question
I am trying to determine how a VH 12 gauge is choked.
I measured the interior of the bore at the muzzle with a micrometer.
The right barrel is 0.701 and left is 0.691.
A dime will drop through either barrel
Any advice is welcomed.
THANKS

[Bindlestiff]

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

[Double Play]

Originally Posted by Tom Taylor

Hoping someone can answer this question
I am trying to determine how a VH 12 gauge is choked.
I measured the interior of the bore at the muzzle with a micrometer.
The right barrel is 0.701 and left is 0.691.
A dime will drop through either barrel
Any advice is welcomed.
THANKS

Tom,
The typical bore measurement for a 12 gage is .729 which would make your chokes .028 (Improved Mod) and .038 (Full).

[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

[Dean Romig]

Tom, the only way to truly determine the choke is to measure constriction in thousandths from the bore diameter to the last 1/4" or less of the choke.

[Bill Murphy]

Have you checked to see whether the barrel length of your VH is the same as when it was manufactured? Such light constrictions are unusual for uncut Parkers.

[Tom Taylor]

It appered uncut to myself and a gunsmith I trust with a good reputation.
I went by his shop to have him measure since my I was off on my choke measurements.
The barrel measured 28 inches
The owner many years ago was an active quail hunter back when this area of Va still had birds.
I am waiting on a nice day to shoot it on paper to see what it does, been too cold with snow recently.

THANKS