Are those closed-backstrap or open similar to Hogue Bantams?
http://www.smith-wesson.com/webapp/...&langId=-1&parent_category_rn=16268&training=
Miko
http://www.smith-wesson.com/webapp/...&langId=-1&parent_category_rn=16268&training=
Miko
Is Uncle Mike's J-Frame Boot grip open-backstrap?
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Technosavant
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The one on the 642 is an open-backstrap design, and those look like they are the same thing.
Dain Bramage
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The one on the model 431 is also open at the backstrap. In fact, you use a little wedge tool at the backstrap to spread the grips and get them off.
Eightball
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Out of curiosity....what real difference does open/closed backstrap make? 
SouthpawShootr
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No more than about 3/16th of an inch increase in the circumference of the grip with a covered backstrap. I prefer a covered backstrap with lightweight hardkicking guns. You really do feel that open backstrap under recoil.
Now, so far as I know, niether Uncle Mikes Bootgrips nor Hogue Bantam grips (very nice BTW, I have them on my 649) come with a close backstrap and the grip ending flush with the bottom of the gripframe. Typically both UM and Hogue extend and extra "finger" or so past the bottom of the gripframe when their grips cover the backstrap. This makes concealment harder to a minuscule degree. Surprisingly, Taurus factory snubbie rubber grips cover the backstrap and the grip stops at the bottom of the gripframe.
Out of curiosity....what real difference does open/closed backstrap make?
According to a calculation I saw, a 12+ oz 340 if not held firmly while shooting a 357, achieves velocity of 45 feet per second in the milliseconds that a bullet is travelling in the barrel. The firmer the gun is held, the lower the velocity but unless it is welded to the bones, it will be substantial.
Basically, the effect is similar to someone hitting you with a hammer - a 12 oz hammer moving anywhere from 15 to 40 feet per second. That is exactly what it felt like when I shot those two 357s.
A 1/16 inch of rubber would make a lot of difference in how one feels that blow.
miko
According to a calculation I saw, a 12+ oz 340 if not held firmly while shooting a 357, achieves velocity of 45 feet per second in the milliseconds that a bullet is travelling in the barrel. The firmer the gun is held, the lower the velocity but unless it is welded to the bones, it will be substantial.
Basically, the effect is similar to someone hitting you with a hammer - a 12 oz hammer moving anywhere from 15 to 40 feet per second. That is exactly what it felt like when I shot those two 357s.
A 1/16 inch of rubber would make a lot of difference in how one feels that blow.
miko
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