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Trying to determine choke in VH
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 |
check the FAQ "What are chokes and why do I need to know?" it may help answer your question.
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Quote:
The typical bore measurement for a 12 gage is .729 which would make your chokes .028 (Improved Mod) and .038 (Full). |
Chokes
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 |
Your measuring device is not working well. A dime should not drop through a .691 bore. A dime is .705.
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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 |
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.
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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.
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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 |
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