Gp100 44 special info from Real Guns

[Bill1944]

The most significant differences between the 357 Magnum version and 44 Special version are in cylinder size and capacity. To maintain strength margins, the 44 Special version was changed from a six round cylinder to five and increased in diameter from the 357 Mag's 1.550" to 1.586" for the 44 Special and increasing 357 Mag cylinder length from 1.562" to 1.625". Both the 357 Mag and 44 Special cylinders have an outside chamber wall thickness of 0.086", which says a lot for the 44 Special with only 15,500 psi operating pressure, compared to the 357 Mag at 35,000 psi.

[shoot-n-lead]

The weak point on most revolver cylinders is the locking bolt cut...the GP100 .44 Special is probably the same.

[dubber123]

The weak point on most revolver cylinders is the locking bolt cut...the GP100 .44 Special is probably the same.

The bolt cut on 5 shot revolvers generally falls between chambers instead of directly over one. I'm guessing this holds true on the GP44.

[shoot-n-lead]

The bolt cut on 5 shot revolvers generally falls between chambers instead of directly over one. I'm guessing this holds true on the GP44.

I don't think that it is squarely on the webbing...but, regardless, the bolt cut is the weakest point in the cylinder.