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Post by contender on Dec 15, 2019 21:57:51 GMT -5
I haven't fooled with my S&W M25-2 in a long while,, and this thread reminded me I needed to pin gauge my cylinder throats. Yep,, mine measure at .455. Now I need to slug my barrel,, to see what it's like. Slowly but surely.
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groo
.327 Meteor
I yet live!!!!
Posts: 855
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Post by groo on Dec 27, 2019 23:58:43 GMT -5
Groo here Back in the day , I shot many Speer blaser 45 colt rounds. More accurate than they should have been. Then I recovered one and found they were hollow based soft bullets. Hornady and speer both list soft lead bullets for 45. There are casters that will sell softer bullets [ look for "cowboy"] And there is the berry plated 45 acp bullet that is hollow based [ 200gr] I have an early m-25 I droped at a traffic accident.[dont ask].. SSK recut the crown and the forcing cone [for lead bullets] The groups tightened greatly.... Don't give up yet...
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Post by ezekiel38 on Jan 1, 2020 19:38:22 GMT -5
Thanks Guys been loading up some 225 grain .452 HPs from soft lead just to see how they shoot. Waiting on weather as it is blowing steady at 28Knots and not a good day to venture forth. I will continue to play with this gun.
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Post by 45MAN on Feb 16, 2020 17:38:10 GMT -5
HAD MY 25-2 OUT OF THE VAULT FRIDAY. .452 CAST BULLETS ARE A SNUG FIT IN THE THROATS SO I GUESS I LUCKED OUT WITH IT. I ALSO HAD A 25-3 45 COLT OUT (THE 1976 125th SHORT CYLINDERED COMMERORATIVE), NOT SO LUCKY HERE AS THE THROATS ARE OBVIOUSLY OVER SIZE. SHOT IT YESTERDAY, SHOT JUST OK WITH .452 CAST BULLETS SO I AM GOING TO TRY SOME .454 BULLETS.
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Post by ddixie884 on Feb 16, 2020 18:27:25 GMT -5
I thought it was Grafs but it is Buffalo Arms that shows .455 250gr cup base bullets...........
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Post by 45MAN on Feb 17, 2020 7:42:43 GMT -5
BUFFALO ARMS SHOWS A SWAGED .455 250gr CUP CORE (MAYBE TOO SOFT FOR MY NEEDS) and A CAST 262gr .455 RNFP, WHICH MAY BE A PROBLEM SOLVER FOR BIG THROATS. BOTH THESE BULLETS ARE SOLD AS 455 WEBLEY BULLETS.
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Post by ezekiel38 on Feb 17, 2020 20:11:36 GMT -5
Cool on the oversize Webley slugs. Tp date the best load that I have used is a discontinued SPEER 45+P load for IPSC. It's a 200grain TC style bullet, jacketed but they shoot right at 2.5 inches at 50 ft. The game goes on.
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nicholst55
.375 Atomic
Retired, twice.
Posts: 1,047
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Post by nicholst55 on Feb 18, 2020 0:22:24 GMT -5
Graf's carries a .455" 262 grain RNFP made by Missouri Bullets that might be useful. Also, IF you can locate a source for them Remington makes/made a 250 grain RNFP intended for the .45 Colt that, IIRC, runs .455". Midway carried them at one time, but it doesn't look like they carry any Remington bulk bullets now.
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Post by 45MAN on Feb 18, 2020 7:37:11 GMT -5
NICHOLS55: THE GRAF/MBC .455 262gr BULLET LOOKS TO HAVE A LONG NOSE/SHORT SHANK, OK FOR SHORT CASES SUCH AS THE 455 WEBLEY, 45 ACP AND 45 AUTO RIM, BUT MAYBE TOO LONG IN A 45 COLT IN THE SHORT CYLINDERED 125th COMMEMORATIVE?? THE BUFFALO ARMS 262gr CAST BULLET LOOKS MORE "NORMAL". I MAY BE GETTING SOME .454 CAST ULLETS FROM A BUDDY LATER THIS WEEK, HOPING THEY WILL BE SNUG ENUFF FOR MY 125th.
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nicholst55
.375 Atomic
Retired, twice.
Posts: 1,047
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Post by nicholst55 on Feb 18, 2020 8:02:05 GMT -5
NICHOLS55: THE GRAF/MBC .455 262gr BULLET LOOKS TO HAVE A LONG NOSE/SHORT SHANK, OK FOR SHORT CASES SUCH AS THE 455 WEBLEY, 45 ACP AND 45 AUTO RIM, BUT MAYBE TOO LONG IN A 45 COLT IN THE SHORT CYLINDERED 125th COMMEMORATIVE?? THE BUFFALO ARMS 262gr CAST BULLET LOOKS MORE "NORMAL". I MAY BE GETTING SOME .454 CAST BULLETS FROM A BUDDY LATER THIS WEEK, HOPING THEY WILL BE SNUG ENUFF FOR MY 125th. One possible limiting factor is how large a bullet your revolver will chamber. As sloppy as the throats on the cylinders are, you may get lucky (if you can call it that) and it will accept .455" or maybe even .458" bullets - if you can find any short enough to work in the cylinder.
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Post by oddshooter on Feb 18, 2020 11:38:20 GMT -5
I have the 25-5 with 8 3/8" barrel and pin gauged .454+ throats (large for caliber). As I recall, the groove measured at .4495", which I thought was kinda tight. A small bore and big chambers seemed like the worst combo.
I first tried some .452 bullets at 240gr and got what looked like keyholing and flyers. 4" groups @25 yards. I tried some .454/.455 and the forcing cone looked like it got some lead deposits and still had large groups. 2"+
I found some .453 bullets at about 10-12 BHN, but I wasn't happy about the accuracy, 2". I then tried without the lube and I powder coated them. The PC took them to .454 which seemed perfect. I got good accuracy and no leading with squeaky clean bore. 1" or less. It took some playing around to find a workable combo.
I was concerned with getting a bullet big enough to fly out of its chamber straight, but would swage? into the forcing cone without issues (spitting/pressure). I specifically chose the soft bullets to meet that criteria.
I don't really know if any of that is standard practice or correct at all, but the end result is nice small groups at 25 yards and ringing steel at 100+. Sometimes, dumb luck pays off.
Prescut
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Post by bradshaw on Feb 18, 2020 12:50:33 GMT -5
I have the 25-5 with 8 3/8" barrel and pin gauged .454+ throats (large for caliber). As I recall, the groove measured at .4495", which I thought was kinda tight. A small bore and big chambers seemed like the worst combo. I first tried some .452 bullets at 240gr and got what looked like keyholing and flyers. 4" groups @25 yards. I tried some .454/.455 and the forcing cone looked like it got some lead deposits and still had large groups. 2"+ I found some .453 bullets at about 10-12 BHN, but I wasn't happy about the accuracy, 2". I then tried without the lube and I powder coated them. The PC took them to .454 which seemed perfect. I got good accuracy and no leading with squeaky clean bore. 1" or less. It took some playing around to find a workable combo. I was concerned with getting a bullet big enough to fly out of its chamber straight, but would swage? into the forcing cone without issues (spitting/pressure). I specifically chose the soft bullets to meet that criteria. I don't really know if any of that is standard practice or correct at all, but the end result is nice small groups at 25 yards and ringing steel at 100+. Sometimes, dumb luck pays off. Prescut ***** Prescut.... you make an example why we must experiment and, again, why The TARGET is the final arbiter of ACCURACY. In essence you saved a revolver with a bullet. In the process, you accord another attribute to the POWDER COAT cast bullet. Dick Thompson mentions the slight thickness. Lee Martin and I have talked about----without stepping beyond theory. Now, you make the case Country Simple. At the same time, don’t be in a hurry to swap oversize chamber exits for an oversize groove diameter; especially to the excess described. Accuracy aside, another problem of loose throats/tight bore shows up as reduced velocity, which is aggravated by a generous cylinder/barrel gap. Good work, David Bradshaw
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Post by 45MAN on Feb 19, 2020 7:06:30 GMT -5
ODDSHOOTER: VERY HELPFUL INFO. MISSOURI BULLET CO. OFFERS CAST/PC'ed BULLETS IN 12 BHN (COWBOY BULLETS) AND 18 BHN (ACTION BULLETS), SAME BULLETS JUST DIFFERENT BHN. MBC ALSO OFFERS CUSTOM SIZING.
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Post by oddshooter on Feb 19, 2020 10:41:09 GMT -5
Thank you, David, for that reminder that the target is the final arbiter. I sometimes get lost in the technical aspects of handloading for a particular situation and forget to just focus on the goal. I love to measure everything and try to analyze, extrapolate, and interpret. I really need that nowadays to keep my mind active. Although, calculating the recipe I can forget that the proof is in the pudding. You have to taste it.
You have to go shoot it to discover if you have found that elusive goal of the entire exercise: ACCURACY. Your kind words assuaged some of my fears about breaking standards.
45MAN, Missouri Bullets has been on my buy list for awhile. Good bullets at great prices. Giving you a choice of 18 or 12 BHN is a big bonus; as is the choice of custom diameters. Adding a choice of their Hi-Tek coating is pretty sweet as well. I usually shoot a new sixgun right after the first cleaning. I wait to slug the barrel and pin gauge the cylinders after discovering if I need to. I like to test how dumb luck can occasionally happen.
To the OP, Ezekiel, Don't give up the ship quite yet; I'm betting after you pin gauge the cylinders, you'll find the magic bullet to kill the vampires and the large groups.
Prescut
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Post by ezekiel38 on Feb 19, 2020 12:44:27 GMT -5
Thanks Presut still working on the solution. I do know that one cylinder is tighter than the other five, noticably so. Need to invest in some pin gauges.
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