Will measure the load itself and see. Its not a + load, and it'd need 2 or 3 more g of powder to be at the max recommended load.
Altitude is probably a few hundred feet, but I'll confirm that. At the shorter distances 200-300 you're pretty even with the target, farther out, the berms are higher.
I don't have those specifics on the bore. Its a Remington 700 Sendero barrel.
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