This proves an internal source inconsistency, not which bottle specification is correct. Resolve exact market/release labels before using either value in Academy catalog data. Useful as a provenance and error-checking exercise; do not silently substitute a guessed number.
Comparison of two entries in the supplied2018 guide; both page images were enlarged to verify the numerical fields and prose.
The Fine Oak10 metadata lists46% ABV at PDF280. The Fine Oak15 entry at PDF282 lists43% ABV but describes its proof as slightly higher than the10-year-old. Those statements are internally inconsistent.
282
280
The Macallan — Fine Oak10 and Fine Oak15
Checked against sequentially read supplied PDF screens and rendered pages; screen locators differ from printed pagination. Canonical attachment/local copy hash matches. Verified means source fidelity only; complete-edition collation and browser rendering remain open.
Evidence
The Fine Oak10 metadata lists46% ABV at PDF280. The Fine Oak15 entry at PDF282 lists43% ABV but describes its proof as slightly higher than the10-year-old. Those statements are internally inconsistent.
Location and context
Supplied PDF screens280–282; The Macallan — Fine Oak10 and Fine Oak15.
Comparison of two entries in the supplied2018 guide; both page images were enlarged to verify the numerical fields and prose.
Researcher assessment
This proves an internal source inconsistency, not which bottle specification is correct. Resolve exact market/release labels before using either value in Academy catalog data. Useful as a provenance and error-checking exercise; do not silently substitute a guessed number.
Provenance
No access · 
Verification is limited to faithful representation of this supplied copy. This record does not certify technical accuracy, current specifications or publication of an Academy lesson.