Hey Jerry,
As Bruce advised, please read the section on Proofing Barrels starting on Page 514, Volume II of the Parker Story. The chart on page 515 sums up the information. The section tells how good a job that Parker did in proofing ALL barrels.
But, just because a Parker's barrels can handle 12,000 PSI doesn't mean the 110+ year old stock can withstand a few boxes of 1&1/2 oz turkey loads. Please remember that:
- High pressure will wreck barrels and actions
- High recoil comprised of the total weight of shot, wad, and power (somebody correct me if I let anything out) will wreck old stocks (especially our favorite Elsie sidelocks)
So, shoot lower pressure loads (-8500 PSI) for day-to-day practice.
If your barrels haven't been reamed too thin then they should be fine for an appropriate load for the barrels.
For me, I would not shoot as heavy a load in a #1 Frame 12 gauge as I would in a #3 Frame gun. The barrels of a heavier frame gun should be thicker than those of a lighter frame gun.
Respectfully,
Mark
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