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10-05-2021, 03:34 PM | #13 | ||||||
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I have tapered reamers to open chokes and just recently did a VH 12 gauge Parker s/n 2218xx for a friend. I’ve done this work for a while now on many maker guns and can tell a factory bore by its uniformity and surface finish. Right bore on that Parker was .742” dia and choke .713” for 29 points of constriction = 3/4 choke (I-Mod). Left bore was .732 with choke .694” for 38 points = Full choke. Both bores and original chokes appeared “factory” to me. I’ve seen mismatched barrel bores occasionally and chalk it up to the maker wanting to salvage a barrel tube that was damaged during the bore finishing operation, and then the shop overbored to clean up the scratch, gouge, chatter marks or whatever. Just my take here gents.
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The Following 2 Users Say Thank You to Frank Srebro For Your Post: |
10-05-2021, 05:32 PM | #14 | ||||||
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I own a CHE 12ga #3 frame that the factory letter states 2 7/8" chambers and made for #1 shot. It is over bored in both barrels to .740/.742 and chokes of .040. I believe the barrels were overbored so #1 shot patterned properly. Any opinions on my theory?? My other possible explanation is when the gun was returned to "take dents out of barrels", the factory polished the bores by .010 and recut the chokes.
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The Following 6 Users Say Thank You to Craig Larter For Your Post: |
10-05-2021, 09:22 PM | #15 | ||||||
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that's a nice gun and I really like guns with long chambers....charlie
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