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Proto-Concept C07

2020–2024 · Game Improvement · 4–PW · 7-iron 31°

Proto-Concept C07 irons
Photo: Proto-Concept

Factory specifications

Factory specifications for Proto-Concept C07, club by club
ClubLoftLieLengthBounce
422°61°38.5"3°
525°61.5°38"4°
628°62°37.5"5°
731°62.5°37"6°
835°63°36.5"6.5°
939°63.5°36"7.5°
PW44°64°35.75"8.5°
Build
pocket cavity (forged SAE8655 face on S20C body, 3-level face-thickness variation), SAE8655 chromium-molybdenum steel face, S20C carbon steel body
Source
Maker’s standard RH men’s steel build, via loftchart.com

Loft progression

Proto-Concept C07 loft by club: 4 22°, 5 25°, 6 28°, 7 31°, 8 35°, 9 39°, PW 44°0°10°20°30°40°50°22°4+325°5+328°6+331°7+435°8+439°9+544°PW
Loft for each club, 4 to PW. The small numbers are the loft added from one club to the next.

Have this set?

Bring it by and we’ll check it against this sheet on the loft-and-lie machine, or get a trade-in offer on the spot. Numbers here are the maker’s standard right-hand, men’s steel-shaft build.