Alas, one should be careful what one wishes for, because his choice of words mimics the wording of Othello in Shakespeare's play:
When you shall these unlucky deeds relate,It seems that Greg has loved his western fiction, his idealized gunslinger image, not wisely but too well.
Speak of me as I am; nothing extenuate,
Nor set down aught in malice. Then must you speak
Of one that lov'd not wisely but too well;
Greg uses the word shootist, without correctly understanding either its origin or its meaning.
The OED - for those of you unused to the slang, that is the Oxford English Dictionary, unabridged in this case, educates us on the word shootist:
shootist, n.Since Greg is clearly not competing in target shooting and not in hunting shooting either, we can only assume that he wishes, posing as a 'shootist' for us to disparage him for doing so. Greg wants to emulate the Hollywood fiction, not the historic fact --- and we are right to tease him for doing so. His concept is pure fiction, classic Hollywood hype, and not factual history.
Etymology: < SHOOT v. + -IST suffix.
One who shoots game, or who competes in a shooting-match; one skilled
in shooting. Chiefly jocular or disparaging.
1864 Gold Hill (Nevada) News 15 Jan. 3/1 (heading) A Shootist.
1872 M. SCHELE DE VERE Americanisms 657 The man whose rifle brought down the largest amount of
game became known as a famous shootist.
1899 F. V. KIRBY Sport E. Central Afr. iv. 47 Unfortunately it would not be the shootist and his party who
1976 National Observer (U.S.) 4 Sept. 18/2 J. B. Books, the protagonist of Wayne's new movie, The
Shootist,..not only restores the legend but expands it, giving the man and his memory grace and
dignity. A shootist is a man good with a gun, and J. B. Books is a retired marshal who was good
enough to kill 30 men.
Second edition, 1989; online version September 2011. <http://photo.pds.org:5004/view/Entry/178513>; accessed
08 December 2011. Earlier version first published in New English Dictionary, 1914.
Oxford University Press