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SP101 barrel lengths

This is a discussion on SP101 barrel lengths within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; Originally Posted by Magnum357 Why not? Not disputing, just curious. Underwood ammo tests one of their loads out of a 3 inch SP. According to ...


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Old March 14th, 2017, 04:45 PM   #31
 
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Quote:
Originally Posted by Magnum357 View Post
Why not? Not disputing, just curious. Underwood ammo tests one of their loads out of a 3 inch SP. According to them, it chronographed 1500fps out of that gun, and 1700 out of a 6 inch GP.
Tamer recoil with .357 mag ammo, longer sight line and better complete powder burn with the longer barrel with factory ammo. If you're handloading than it's a different story for powder burn since you're loading for your particular firearm. I've been shooting .38 spl and .357 mags with 6" barrels with factory and hand loads and never had a problem with residual powder in the bore. The uniformed call them dirty ammo when they buy factory ammo and the powder has not been fully consumed because they are shooting it in a shorter barrel. Hence my recommendation for the 4.2" barrel for OWB carry and performance.



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Old March 14th, 2017, 05:32 PM   #32
 
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I can now corroborate what others said, there's little felt difference between the 2 1/4" and 3.1" SP101s. Sight radius is the main difference, but the fixed sights aren't really adequate for precision target work beyond about 15 yards. Too hard to see and align them against a dark target. Regardless, they are both a pleasure to shoot in .38. But even the Diamond Pro grips can't make .357 pleasant.

I shot about 20 rounds through the 2 1/4", and 90 through the 3", at distances from 5 to 20 yards.
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Old March 14th, 2017, 05:38 PM   #33
 
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I personally think that the most useful SP101 would be a 3", but one they do not make: that would be one with the same barrel as on the 4.2" .357, but in a 3" version.

IMHO, it would be a truly rugged "kit gun" that could handle the .357 with no issues, and be just short enough to stow in a lot of places the 4.2 " can't fit.

d
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Old March 14th, 2017, 06:43 PM   #34
 
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I only have one SP 101 .357 Mag.3",so I can only spek about it.I love it.
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Old March 15th, 2017, 04:48 AM   #35
 
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Quote:
Originally Posted by JohnR2 View Post
I can now corroborate what others said, there's little felt difference between the 2 1/4" and 3.1" SP101s. Sight radius is the main difference, but the fixed sights aren't really adequate for precision target work beyond about 15 yards. Too hard to see and align them against a dark target. Regardless, they are both a pleasure to shoot in .38. But even the Diamond Pro grips can't make .357 pleasant.

I shot about 20 rounds through the 2 1/4", and 90 through the 3", at distances from 5 to 20 yards.
I'm actually a fan of fixed sights. They don't get "out of adjustment", they're a lot tougher in general and far less likely to snag on something. However, they don't provide quite the same "clean" sight picture as most adjustable sights. The rear sight being the chief culprit. Painting the flat, rear facing surfaces of the rear sight can help a little bit on a stainless gun.
The Novak style fixed rear sight is about the best compromise between the utility of a fixed sight and the better sight picture of a typical adjustable sight. Unfortunately it adds bulk and requires a taller front sight. It's also not an option for all revolvers.

That 3" SP101 will serve you well and I bet with some more trigger time, you'll find that you can extract some more accuracy out of it. Practice with 38 Special loads and keep your bullet weights close to 158 grains. That SP101 will deliver.

Great new gun, Enjoy.
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Old March 15th, 2017, 04:50 AM   #36
 
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Quote:
Originally Posted by deafrn View Post
I personally think that the most useful SP101 would be a 3", but one they do not make: that would be one with the same barrel as on the 4.2" .357, but in a 3" version.

IMHO, it would be a truly rugged "kit gun" that could handle the .357 with no issues, and be just short enough to stow in a lot of places the 4.2 " can't fit.

d
If you mean a 1/2 lug 3" SP101 - I'M WITH YOU !
That would be a cool kit gun.
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Old March 15th, 2017, 07:53 AM   #37
 
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Originally Posted by Petrol and Powder View Post
I'm actually a fan of fixed sights. They don't get "out of adjustment", they're a lot tougher in general and far less likely to snag on something. However, they don't provide quite the same "clean" sight picture as most adjustable sights. The rear sight being the chief culprit. Painting the flat, rear facing surfaces of the rear sight can help a little bit on a stainless gun.
The Novak style fixed rear sight is about the best compromise between the utility of a fixed sight and the better sight picture of a typical adjustable sight. Unfortunately it adds bulk and requires a taller front sight. It's also not an option for all revolvers.

That 3" SP101 will serve you well and I bet with some more trigger time, you'll find that you can extract some more accuracy out of it. Practice with 38 Special loads and keep your bullet weights close to 158 grains. That SP101 will deliver.

Great new gun, Enjoy.
I like fixed sights too, for sheer ruggedness.

It's almost the size of my GP100, though there's a very noticeable weight difference.

Last edited by JohnR2; March 15th, 2017 at 08:01 AM.
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