CHRONOGRAPHING SOME 25-20 AND 357 LOADS IN REVOLVERS

[45MAN]

BEEN GETTING CAUGHT UP ON GUN PROJECTS. THIS MORNING (4/18/20) I WENT OUT TO MY RANGE IN "NO MAN's LAND" ALONG THE RIO GRANDE. IT WAS AROUND 80 DEGREES. CHRONOGRAPHED SOME 158gr  BULLETS IN S&B 357 CASES, CCI 500 PRIMERS, 7.9grs OF UNIQUE, IN A RUGER SS LIBERTY 6.5 INCH BLACKHAWK. 4 SHOT AVERAGE FOR A RAINIER 158gr FP PLATED BULLET: 1,197fps, AND 4 SHOT AVERAGE FOR A MISSOURI BULLET COMPANY 158gr PC'ed #1 RANGER RNFP BULLET WAS: 1,275fps. THESE ARE PRIMARILY PRACTICE/PLAY/PLINKING LOADS, BUT ARE GOOD ENUFF FOR SERIOUS WORK TOO. THE PC'ed MBC BULLET/LOAD IS WHERE I LIKE MY CAST BULLET LOADS, HIGH 1,200's/UNDER 1,300fps. INITIAL ACCURACY TESTING IS OK, MAY HAVE TO TWEAK THE MBC LOAD.


THEN I CHONO'ed SOME 180gr MBC PC'ed WFN PUGNOSE BULLETS IN IMI CASES, WSPM PRIMERS, AND 13.2grs OF VV-N110 POWDER. SHOT THESE IN A 5 7/8ths INCH, S&W MODEL 27-2. 6 SHOT AVERAGE: 1,276fps, RIGHT WHERE I LIKE 'EM. INITIAL ACCURACY TESTING WITH THIS BULLET IN THIS REVOLVER HAS BEEN EXCELLENT. I AM DEVELOPING A LOAD WITH THE 180gr PUGNOSE FOR A 2 3/4 INCH SECURITY SIX, WHICH SEEMS TO SHOOT BETTER WITH HEAVIER BULLETS, BUT A BUDDY IS DOING SOME WORK ON IT RIGHT NOW. MEANWHILE, I MAY HAVE FOUND A NEW GENERAL PURPOSE LOAD FOR FIELD CARRY IN MY N FRAME 357's.


LASTLY I CHRONO'ed SOME 25-20/25 WCF LOADS IN A BOWEN 5.5 INCH BLACKHAWK. I HAD TO "RECALIBRATE' A POWDER MEASURE SO WAS TRYING LOADS TO CHECK MV, AND TO FUNCTION TEST/CHECK FOR SET BACK AND DIFFICULT EXTRACTION ISSUES. USING R-P CASES, H4227 POWDER, WSPM PRIMERS AND 85gr GC'ed FP, RANCH DOG, CAST BULLETS, 11.4grs OF H4227, 5 SHOT AVERAGE: 1,479fps, AND 11.6grs, 5 SHOT AVERAGE: 1,467fps. TOMORROW I AM GOING TO FUNCTION TEST/SHOOT ON PAPER, OFF A REST, A LOAD WITH 11.8grs OF H4227.

[sixshot]

Rey, those 180's out of that 6" model 27 sound like a dandy load to me. I should try a few 180's out of my model 27 just to see how they do. Mid 80's, that's some major heat buddy! We finally sneaked up to 63 & I wanted to go skinny dipping.... except there's still some ice on the lake.

Dick

[flyingzebra]

I'm all ears on the 25-20 loads.

[oddshooter]

45Man,

I'm a real fan of the Vihtavouri powders and especially the N110 and the N340.

It looks like you want the velocity that N110 gives you; 180's at 1275fps is a serious round, but one I would put in most of my 357's without hesitation. I'm guessing it's hard hitting with manageable recoil. I have to try this combo.

I found an older VV manual from 2002 you might be interested in:

pdf.textfiles.com/manuals/FIREARMS/vihtavouri.pdf


Prescut

[45MAN]

Apr 18, 2020 15:47:25 GMT -5 45MAN said:

BEEN GETTING CAUGHT UP ON GUN PROJECTS. THIS MORNING (4/18/20) I WENT OUT TO MY RANGE IN "NO MAN's LAND" ALONG THE RIO GRANDE. IT WAS AROUND 80 DEGREES. CHRONOGRAPHED SOME 158gr  BULLETS IN S&B 357 CASES, CCI 500 PRIMERS, 7.9grs OF UNIQUE, IN A RUGER SS LIBERTY 6.5 INCH BLACKHAWK. 4 SHOT AVERAGE FOR A RAINIER 158gr FP PLATED BULLET: 1,197fps, AND 4 SHOT AVERAGE FOR A MISSOURI BULLET COMPANY 158gr PC'ed #1 RANGER RNFP BULLET WAS: 1,275fps. THESE ARE PRIMARILY PRACTICE/PLAY/PLINKING LOADS, BUT ARE GOOD ENUFF FOR SERIOUS WORK TOO. THE PC'ed MBC BULLET/LOAD IS WHERE I LIKE MY CAST BULLET LOADS, HIGH 1,200's/UNDER 1,300fps. INITIAL ACCURACY TESTING IS OK, MAY HAVE TO TWEAK THE MBC LOAD.


THEN I CHONO'ed SOME 180gr MBC PC'ed WFN PUGNOSE BULLETS IN IMI CASES, WSPM PRIMERS, AND 13.2grs OF VV-N110 POWDER. SHOT THESE IN A 5 7/8ths INCH, S&W MODEL 27-2. 6 SHOT AVERAGE: 1,276fps, RIGHT WHERE I LIKE 'EM. INITIAL ACCURACY TESTING WITH THIS BULLET IN THIS REVOLVER HAS BEEN EXCELLENT. I AM DEVELOPING A LOAD WITH THE 180gr PUGNOSE FOR A 2 3/4 INCH SECURITY SIX, WHICH SEEMS TO SHOOT BETTER WITH HEAVIER BULLETS, BUT A BUDDY IS DOING SOME WORK ON IT RIGHT NOW. MEANWHILE, I MAY HAVE FOUND A NEW GENERAL PURPOSE LOAD FOR FIELD CARRY IN MY N FRAME 357's.


LASTLY I CHRONO'ed SOME 25-20/25 WCF LOADS IN A BOWEN 5.5 INCH BLACKHAWK. I HAD TO "RECALIBRATE' A POWDER MEASURE SO WAS TRYING LOADS TO CHECK MV, AND TO FUNCTION TEST/CHECK FOR SET BACK AND DIFFICULT EXTRACTION ISSUES. USING R-P CASES, H4227 POWDER, WSPM PRIMERS AND 85gr GC'ed FP, RANCH DOG, CAST BULLETS, 11.4grs OF H4227, 5 SHOT AVERAGE: 1,479fps, AND 11.6grs, 5 SHOT AVERAGE: 1,467fps. TOMORROW I AM GOING TO FUNCTION TEST/SHOOT ON PAPER, OFF A REST, A LOAD WITH 11.8grs OF H4227.

WELL "TOMORROW" (4/19/20) CAME AND WENT AND I DIDN'T GET BACK TO THE 25-20 UNTIL TODAY (8/8/20). THE 11.8grs OF H4227 AND THE 85gr RANCH DOG BULLET FUNCTIONED AND SHOT OK, BUT I HAVE DECIDED TO GO WITH THE LOAD OF 11.4grs OF H4227, ESPECIALLY AFTER I HIT A 6 1/2 INCH SWINGER AT, 65 YARDS, 4 TIMES IN A ROW, ALBEIT OFF A REST, BUT NOTRWORTHY NONETHELESS. HAVE A 100 OF THIS LOAD LOADED UP, A COMMITMENT I GUESS.