I have a question about Ruger Sp101

by Fivegunner @, LOWELL Mi., Monday, November 29, 2021, 09:01 (1090 days ago)

I have a early Ruger SP101 it is marked 125 gr, only , I forgot why only 125 gr, only ?? Why was it made for only this weight of bullet? can someone please tell me ? what make`s it different from my other SP101`s that I own? It`s been in the back of one of my safe`s for over 35 years. Thank you in advance Frank From Lowell Mi.:-D

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I have a question about Ruger Sp101

by JT, Monday, November 29, 2021, 09:19 (1090 days ago) @ Fivegunner

RECOIL. POSSIBILITY OF RECOIL CAUSING HEAVIER BULLETS TO JUMP THEIR CRIMP WHEN THE GUN WAS FIRED. S&W DID THE SAME CAUTION WITH SMALLISH .357s.,

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I have a question about Ruger Sp101

by Fivegunner @, LOWELL Mi., Monday, November 29, 2021, 12:56 (1090 days ago) @ JT

Thank you for the reply John, I have 3 other .357 mag SP101`s that will take heavier bullets. They look like they are the same size and weight , so I don`t understand what would be the differance in bullet pull?. Unless the ammo factorys found a way to make a better crimp. Or was it a learning process for Ruger and S&W ? . anyway Thank you

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I thought it was a shorter cylinder?

by Otony, Monday, November 29, 2021, 17:36 (1090 days ago) @ JT

Only room enough for 125 grain loads, a side effect of when the SP101 was only a .38 Special. Later SP101 revolvers have slightly longer cylinders.

Or am I wrong? If the cylinders are not longer, what could they change dimensionally to allow for heavier than 125 grain loads in later guns?

Otony

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I thought it was a shorter cylinder?

by JT, Tuesday, November 30, 2021, 01:29 (1090 days ago) @ Otony

DON'T BELIEVE THEY CHANGED ANYTHING JUST BACKED OFF THE 125 MAXIMUM WEIGHT BULLET. I WILL CHECK AND SEE.

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I thought it was a shorter cylinder?

by JT, Tuesday, November 30, 2021, 01:43 (1090 days ago) @ JT

OTONY IS CORRECT! from "RUGER AND HIS GUNS" R.L. WILSON: ".357 Magnum, five-shot. First production had shorter cylinder, barrel marked 125 GR. BULLETS ONLY. Later production can shoot all factory .357 Loads

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Only reason I recalled that tidbit…..

by Otony, Wednesday, December 01, 2021, 20:57 (1088 days ago) @ JT

…..is because a friend bought the 125 grain version just before the longer cylinder was introduced. He was indignant.

But I didn’t recall it easily, had to think on it for awhile….

Otony

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I have a question about Ruger Sp101

by Fivegunner @, LOWELL Mi., Thursday, December 02, 2021, 15:52 (1087 days ago) @ Fivegunner

YES! I just measured the cyinders the SP101 that is for 125 gr, only is 1.520 LOA, the other SP101`s (3) that can shoot longer bullets are 1.580. so its 60 thousand LOA. I want to thank you guys for putting up with Me. May GOD Bless you all.:-D

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