Acorn
Hunter
Which frame is stronger the SP101 or Single Six in .327? Not that I intend going thermo-nuclear just curious.
Single Six or SP101, strength
- Thread starter Acorn
- Start date
NikA
Hunter
I believe the frame materials are the same. Since you ask about the frame strength and not the overall strength, the weak point is most likely the thin part of the top strap right above the forcing cone. The weak point overall is likely the cylinder walls between chambers.
.327 FM SP-101 top strap dimensions: .576"x.169"
.327 FM Single Seven top strap dimensions: .682"x.210"
S7 has a slightly larger diameter cylinder at ~1.42" vs. ~1.35" for the SP. S7 obviously has an extra cartridge but a stronger custom cylinder could be made.
OAL will probably be a consideration for this cartridge: SP-101 has a larger frame window at 1.739" vs. 1.555" on the S7.
.327 FM SP-101 top strap dimensions: .576"x.169"
.327 FM Single Seven top strap dimensions: .682"x.210"
S7 has a slightly larger diameter cylinder at ~1.42" vs. ~1.35" for the SP. S7 obviously has an extra cartridge but a stronger custom cylinder could be made.
OAL will probably be a consideration for this cartridge: SP-101 has a larger frame window at 1.739" vs. 1.555" on the S7.
Hondo44
Hawkeye
The frames are probably irrelevant, both well over built for the cartridge, but you could compare dimensions.
Generally a SA will have the edge over a DA because of it's swing out crane/cyl. The Single Seven .327 is built on the .22 frame. Not sure about the SP 101.
In any revolver the cyl is the weakest link, specifically when the cyl notches are located over the chambers. Odd # chambers have the advantage in that regard because the notches are located between the chambers. Again, compare dimensions and where the cyl notches are located for a comparative evaluation.
They're likely about equal in strength.
Generally a SA will have the edge over a DA because of it's swing out crane/cyl. The Single Seven .327 is built on the .22 frame. Not sure about the SP 101.
In any revolver the cyl is the weakest link, specifically when the cyl notches are located over the chambers. Odd # chambers have the advantage in that regard because the notches are located between the chambers. Again, compare dimensions and where the cyl notches are located for a comparative evaluation.
They're likely about equal in strength.
NikA
Hunter
My measurements on Ruger revolvers indicate to me that Ruger engineers are doing it right: the minimum thickness at the cylinder notches have been the same or greater than the minimum thickness between charge holes. The offset cylinder stop location facilitates this design strength consideration.
The frame is not particularly relevant. The cylinder is where the boom happens. I doubt there is any significant difference in strength. Either will handle any sane loads. Ruger tends to overbuild in that respect. JMHO
