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most accurate gp100 357 mag round?

This is a discussion on most accurate gp100 357 mag round? within the Ammo Dump forums, part of the Firearm Forum category; As in other thread, I am looking for the most accurate 357 round for the Gp 100 Are these revolvers best suited for a 158g ...


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Old October 17th, 2010, 06:13 PM   #1
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most accurate gp100 357 mag round?

As in other thread, I am looking for the most accurate 357 round for the Gp 100 Are these revolvers best suited for a 158g bullet?
Or should I be looking for a 125g bullet? Just curious. i would like to become most proficient with this 4" revolver ( most accurate). Is there a "designed" round/cartridge that is inherent in the desgin/performance of this gun?



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Old October 17th, 2010, 10:31 PM   #2
 
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There is no "most" accurate round.
You'll need to try several in your own gun to see what works best in it.
They all have their own personality.
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Old October 17th, 2010, 10:37 PM   #3
 
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I am interested in seeing how this works out for ya MidLife as I am currently working on buying a .357 revolver
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Old October 18th, 2010, 11:05 AM   #4
 
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I've got four GPs & I've worked with a fifth.
None showed any clear preference for bullet weight.
One particular load might work great in three, still good but less fine in the others, and so on.
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Old October 18th, 2010, 11:31 AM   #5
 
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I carry mine loaded with the middle weight Hornady 140 Gr. XTP's #90552 because they have proven to be very consistant performers in my 6" GP, both in accuracy & expansion. But, . . . . . . . to be honest with you, I really have not found any factory loads that have disappointed me in my GP. Some loads may shoot to a different P.O.A. but all are consistantly uniform groups. I've never had the opportunity to "machine Rest" my GP, so I figure I'll never know which load is actually the "Most" accurate, largely due to my personal inability to shoot with the degree of accuracy my GP is capable of.
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Old October 20th, 2010, 05:52 PM   #6
 
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I like the Fiocchi 142 gr. Spiral Point, but it depends on what kind of accuracy you are demanding from the gun......to me accuracy is if I can keep my rounds in the boiler room of a B-27 silhouette at 25 yards in DA with a 2-hand hold, or turn an X-ring into a ragged hole at 25 from a solid sand bag rest shooting SA. I don't shoot a whole lot of .357's though, so it's not like I have tried everything.

I know Armscor is not the most accurate out of any gun.......

What I call accurate ammo might not meet the needs of someone trying to shoot dime sized groups.......
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Old October 20th, 2010, 06:02 PM   #7
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My mission is to become "proficient" (read accurate) in the firing of my handgun.
As a recent comment at the range was stated: "I'd love to consistently hit the button on the shirt, but, as long as I'm hitting the shirt, that's good enough".
I want to practice with a simialr weight and velocity of what will be in the gun for SD.
I find most factory ammo is 125 g and high velocity. I also think that a heavier bullet may be more deisgned for this particluar revolver with a slightly lower velocity. Confused a littel
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Old October 21st, 2010, 04:59 AM   #8
 
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I also have fired the fiocchi 142 grain conical with good accuracy. It also burns very clean and the price is right. Almost any .357 load seems to shoot more accurately than .38's, especially very slow moving bullets.
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Old October 21st, 2010, 05:08 AM   #9
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I tend to favor 158 gr bullets as that's what the voices tell me to shoot. Seriously whatever gives you good accuracy and is fun for you to shoot, then go for it. Half the fun is just getting there so shoot a lot and enjoy it as the GP can take it. If you are looking for accuracy then support yor wrist with bags and that should help you decide which is most consistent.
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Old October 21st, 2010, 08:38 AM   #10
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>>I tend to favor 158 gr bullets as that's what the voices tell me to shoot<<

Ditto that........
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Old October 21st, 2010, 04:20 PM   #11
 
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Unless you break out the tape measure and shoot from a Ransom Rest, you're probably not gonna see much difference among quality ammo makers. If I see a reasonably tight cluster on the taget then it makes me happy. Most decent ammo out of most of my guns can produce more accuracy than I am capable of hitting with anyway

I mean American Eagle may shoot a little better in some of my .357's than others, but only two kinds of ammo has stood out as "inaccurate" and that is A-Merc and a bad lot of Armscor .357 158 gr. I have since shot 1,000's of Armscor .38 Special 158 gr. ball and it is good range ammo.
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Old October 24th, 2010, 12:24 AM   #12
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Quote:
Originally Posted by 41 Magnum View Post
I carry mine loaded with the middle weight Hornady 140 Gr. XTP's #90552 because they have proven to be very consistant performers in my 6" GP, both in accuracy & expansion. But, . . . . . . . to be honest with you, I really have not found any factory loads that have disappointed me in my GP. Some loads may shoot to a different P.O.A. but all are consistantly uniform groups. I've never had the opportunity to "machine Rest" my GP, so I figure I'll never know which load is actually the "Most" accurate, largely due to my personal inability to shoot with the degree of accuracy my GP is capable of.

Very well put.
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Old October 24th, 2010, 07:28 AM   #13
 
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I've found that .38 Special Wadcutters are particularly accurate in my GP100. This is compared to the usual FMJ round nose I typically use for target shooting (either .38 Spl or .357 Mag).

I also find that the 148-158 grain .357 bullets seem to be a bit more accurate than the 125 grain; I also like them because they are "middle of the road" bullet weights in .357 so it seems like the revolver would be "optimized" for these, but that's just a guess.

I've also found that Buffalo Bore's 180 LFN shoot accurately but due to recoil and cost, I don't usually take them to the range.

Last edited by Tater; October 24th, 2010 at 07:35 AM.
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Old October 24th, 2010, 08:23 AM   #14
 
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If you want to really draw out the accuracy of any gun, reload. If that's not an option, there is no one answer fits all for a particular gun. I could line up 5 different identical GP's and they'd all shoot different with the exact same load. Your revolver is unique and it's going to take practice with different rounds to find out what shoots the best. Luckily, that's the fun part!
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Old October 26th, 2019, 01:04 PM   #15
 
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Accuracy at 50 yards with a 6" GP 100 357 magnum!

I have been using 158 grain Winchester J.H.P.-Notched bullets over 13.4 grains of 2400 and the same bullet over 7.5 grains of WIN. 231 with a C.C.I. 550 magnum primer. Ruger GP 100 6". They both shoot about a 3" group at 25 yards. I am looking to go out to 50 yards.
Obviously I reload. Is there a better combination to get a better group out at 50 yards or am I pushing it too much?
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