Robert,
Thanks. from this image it is clear that they are the same size, so there may be no way to answer this question. I would love to attend the Southern, but I doubt that it will be possible this year. I do not think my wife will feel up to the trip and I can not leave her here alone. If this changes I will be here. If I can come I will bring my bore gauges. I am still very much interested in learning more about Parker's use of full length tapered bores. Do any of your lifter guns have this feature?
So far I have found full length taper bores in Serial Numbers:
3451 - 11 bore barrels; 11A chambers
3561 - 11 bore barrels; 11A chambers
3620 - 11bore barrels; 10A chambers
3752 - 10 bore right, 11 bore left; 11A chambers
3451 to 3752must have spanned a very short period of time--but there may be lower and higher serial numbers that just have not yet been measured. It would be nice if we could get info on the patterning of these guns from the records.
I know this data only for # 3561 --- the right barrel delivered 120 pellets and the left delivered 125 pellets from 1 and 1/8 oz of #8 shot into 24" diameter circle at 45 yds.
I would love to hear of other Parker's with full length tapered bores and the difference in dates of completion of 3451to 3752.
Yours,
Richard
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