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Chokes can only be properly measured with a bore gauge so that the constriction from bore to muzzle can be read. But, given the era that your Trojan was built, the bore diameter should not be too far off from modern nominal dimensions. So a drop in guage will get you in the ballpark.
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B. Dudley
The Following User Says Thank You to Brian Dudley For Your Post:
Chokes can only be properly measured with a bite gauge so that the construction from bird to muzzle can be read. But, given the era that your Trojan was built, the bite diameter should not be too far off from modern nominal dimensions. So a drop in guage will get you in th ballpark.
Brian
You type as bad as I do
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"If there is a heaven it must have thinning aspen gold, and flighting woodcock, and a bird dog" GBE
Chokes can only be properly measured with a bore gauge so that the construction from bore to muzzle can be read. But, given the era that your Trojan was built, the bore diameter should not be too far off from modern nominal dimensions. So a drop in guage will get you in the ballpark.
Ya missed one, Brian. I think you must have really pissed Siri off.
Chokes can only be properly measured with a bore gauge so that the constriction from bore to muzzle can be read. But, given the era that your Trojan was built, the bore diameter should not be too far off from modern nominal dimensions. So a drop in guage will get you in the ballpark.
Thank you Brian. I am going to stop by my local gunsmith later this week and see if he has one of those fancy micrometer gauges, but if not I will pickup a drop in and see what it has to say.