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July 17, 2017, 02:52 AM | #26 | ||||
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Quote:
Obviously, there's something else going on there. Quote:
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Again, and I digress, if the OP is having issues close in, why introduce even more variables - such as wind &/or lighting or whatever - into the picture? All that does is make things even more difficult to sort out. Quote:
But - is that the issue or - is the issue one of the group size opening up? Perhaps the OP will return and shed some light on it. Last edited by Hal; July 17, 2017 at 02:58 AM. |
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July 17, 2017, 09:14 AM | #27 |
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Being the greatest revolver shooter who ever lived, I find no difference between a .38 and a .357 and I always hit the X-ring exactly centered.
Even mixing the rounds in the cylinder and not knowing which is which when I pull the trigger, I can immediately compensate during the dwell time in the barrel for the differences and adjust my aim accordingly. I am . |
July 17, 2017, 11:41 AM | #28 | |
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July 17, 2017, 12:33 PM | #29 |
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Hi Guys,
Thanks for the responses. I've been shooting for over 20 years but I don't shoot the revolver much. I really doubt it is flinching due to perceived recoil since I there really isn't much recoil with a heavy 6" stainless GP100. I'm sure the gun is capable of way better accuracy than I am. I will have to go back with different loads in .357 magnum and .38 special. I will also be more aware of the recoil and try some shots resting off the shooting table.
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July 17, 2017, 02:17 PM | #30 |
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IIRC Colts used to have a somewhat tighter twist-1 in 14"-IIRC-that made for greater accuracy with 38 Specials. Also what bullet weights are you shooting ?
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July 17, 2017, 03:24 PM | #31 |
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@SIGSHR,
I was shooting CCI Blazer 110 grain .357 magnum and the gun was an absolute tack driver with that load. I believe the .38 special load was 130 grain Aguila. I mixed the rounds up so I wasn't expecting one load over the other. I also have some.357 magnum from Remington (124 grain), some Geco (158 grain), and CCI (158 grain). I guess this warrants another trip to the range.
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July 18, 2017, 07:36 AM | #32 |
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Sounds like your GP doesn't like the .38 Special loads you've been feeding it. At 5, 7 and even 10 yds, there shouldn't be more than an inch or so between groups fired with either caliber. Too, you're talking about a spread group, not a change in impact, if I read your OP correctly. Rod
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July 18, 2017, 10:44 AM | #33 | |
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Adjustable sights can often compensate but sometimes the difference is simply too great. Rare, but it does happen, I've seen it. Around 30 years ago, a friend brought over an SAA clone in .357mag. I forget the name now, sorry. It was nicely made and finished. and it shot like a dream with 158gr @850fps .38 Special. I mean scary accurate, write your name with it accurate at 10yds. EVERY single .357 mag load we tried (and we tried about half a dozen, with FOUR different shooters), every one shot at least a foot low and left at the same distance. Every one. No idea why. Never saw another gun that had THAT much difference in point of impact change, but that one, did. The owner considered sending it off to be "fixed", but decided to keep it as a "38special only" gun, because it did shoot so well with .38s. Most of the time, a .357 will shoot somewhat better with .357s than .38s, but any individual gun can do just the opposite.
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July 18, 2017, 11:45 AM | #34 |
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@44 AMP,
Thanks for the above post. I feel better knowing others have experienced something similar to what I experienced. That is why I brought up this question in the first place. I will try and go later this week and will report back to you guys.
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July 18, 2017, 03:11 PM | #35 |
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I remember what the late Skeeter Skelton said about .38spl & .357. His working .357 load was 13.5 grains of 2400 under a 158 grains Thompson gc swc. The load was assembled in .38 spl cases and the bullet was seated out and crimped in the lower crimping groove. That load, he wrote, hit the same poi as the wadcutter loads they shot targets with.
I load a similar combo but in .357 cases instead of .38 cases and crimp in the top crimping groove. My load chronographs 1200 fps, which probably is the same velocity range as Skeeter's LEO ammo. This is my everything, day to day load for the .357. If and when the hammer drops, I have the same bullet over 15 grains of 2400 for about 1450 fps. Actual weights of these bullets are in the 160 plus grain range. And they do indeed have the same poi. |
July 18, 2017, 03:47 PM | #36 |
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I was going to make the exact same statement. If you are comparing loads you need to compare the same grain bullets. A 110 bullet can be vastly different than a 158gr at the same distance, but 158gr or 125gr at seven yards will not be drastically different in my experience as long as you are using the same grain bullet for each caliber. At 25 yds, you will see a substantial difference. The only way to really know is to experiment with your particular gun.
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