If the GOP nominates a pro-abortion, pro-gun candidate, they willfully forfeit the conservative vote. It is their choice.
I think you mean anti-gun.
I'm a conservative. I have voted for Newt Gingrich, Saxby Chambliss, Alan Keyes, Phil Gramm and Johnny Isakson in general elections and primaries. I'm supporting Fred Thompson's candidacy (if he runs).
I will vote for Giuliani against any Democrat in the field, and so will many other conservatives.