Ruger GP 100 vs. Security Six

[SIGSHR]

Let a friend shoot my trusty old 6" Stainless Security Six he was impressed, then he asked me how does it compare to the GP100.
So what ARE the differences?

 

[629 shooter]

One of the big differences is the grip frame where the SS has the Smith style "skeletonized" frame the GP100 has the smaller grip extension. The GP100 has a front locking "mechanism" (Ruger's terminology) on the yoke. The GP100 utilizes a non-rotating ejector rod. The GP100 has the plunger style front sight which can easily be changed. Of course the barrel profile is the most obvious.

 

[LarryH]

...and it's heavier, doesn't feel as good in my hand as my Security Six and, to me, just doesn't balance as well as the Security Six. But it is a fine handgun.

 

[Tamara]

The GP100 is a lot sturdier, but that sturdiness comes at the expense of svelteness.

 

[SIGSHR]

Thanks for your answers. Are the lockworks the same?