Regulating Shield Sights for 147gr Ammo - Page 2 - MP-Pistol Forum

Regulating Shield Sights for 147gr Ammo

This is a discussion on Regulating Shield Sights for 147gr Ammo within the MP SHIELD Pistols forums, part of the Smith & Wesson MP Forum category; I have decided to give the Federal HST 150 grain JHP a try. Given that most self-defense civilian shootings occur at 10 yards or less, ...


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Old March 29th, 2017, 07:23 PM   #16
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I have decided to give the Federal HST 150 grain JHP a try. Given that most self-defense civilian shootings occur at 10 yards or less, what can I expect as far as my POI with the Shield using this ammo compared to lighter bullets? At these short distances is the POI really any different (using the same aim) than shooting a 115 or 124 grain grain bullet? I have no desire to practice beyond 10 or 12 yards as the Shield is not a long distance target pistol.
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Old March 29th, 2017, 07:39 PM   #17
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I understand that you want to change your sights, but there might be an easier solution that will pay dividends. Stiffen your wrist, don't limp wrist it.

I shoot big boomers; think hand cannons; regularly so that when I shoot more normal handguns the recoil is meaningless.

If you have a handgun with more recoil shoot it and then return to the Shield and you'll see a difference if you keep the same wrist stiffness. Don't confuse jerking the trigger or anticipating the recoil and pulling down with wrist stiffness.

The dividends? Semi-autos need something to push against to operate at their best. A stiff wrist gives them that so you'll get fewer or no malfunctions.
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Old March 31st, 2017, 04:43 PM   #18
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Diego, if I had to make a guess, which this is, your 150g ammo will probably hit about 3" high at 10 yards if you hold a combat sight picture as intended with the Shield.

Brian K, did you even read the entire thread? This is not about limp-wristing the gun. If you shot heavier bullets in your hand cannon, even with your built up grip strength, they would shoot higher than a lighter bullet, assuming common factory loading specs. It's physics, not physiology, at work here.
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Old March 31st, 2017, 07:33 PM   #19
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I know you're writing from your experience but you are out of your experience, quite frankly, and writing anyway and giving us the benefit of that.

Yes, I did read the thread, did you think about what I wrote? I didn't mention limp wristing; you did. The fact is that a stiff wrist prevents the gun from recoiling more than it normally would and results in a lower bullet impact. The gun starts to recoil a nanosecond after the primer fires, before the bullet even leaves the barrel.

OK, I'll take it further. I didn't mention curing limp wristing because that's definitely not what I meant. I know how to write that, and I'm not afraid to write it. If a normal shooter with a normal non-limp wristed shooting hand further stiffens the wrist to basically make the hand/wrist a more or less rigid extension of the arm, that's what I mean. It might also be possible to learn to do with lifting weights, but I don't know that for fact. I learned to do it by firing handgun producing over 50 ft/lbs of recoil and they kick like a mule (.308 and .375/06 JDJ). I see no reason other big boomers wouldn't also produce the same wrist control. Then when moving to a more sedate recoiling handgun it's like shooting a .22 as far as wrist movement. That has an effect on the bullet impact.

Last edited by BrianK; March 31st, 2017 at 08:19 PM.
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Old April 1st, 2017, 12:06 PM   #20
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Quote:
Originally Posted by BrianK View Post
3/30/2017: I understand that you want to change your sights, but there might be an easier solution that will pay dividends. Stiffen your wrist, don't limp wrist it. ...
Quote:
Originally Posted by BrianK View Post
4/1/2017: Yes, I did read the thread, did you think about what I wrote? I didn't mention limp wristing; you did. ...
Not going to get into a running dialogue with you about what you said or when. Thank you for your comments about increasing my wrist strength as a possible solution to my problem.
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Old April 1st, 2017, 01:17 PM   #21
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Whoops, I did write limp wrist it. Sorry, my apology. I didn't go back far enough. That's not what I meant. I just meant to strengthen the wrist as one possible solution.
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Old April 1st, 2017, 02:32 PM   #22
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Some may find this article of interest; particularly the last paragraph.

The Effects of Bullet Weight, Velocity and Trajectory on Point of Impact

You are welcome.

Caution: Pseudo-science and / or amateur photos may be embedded in this post.

Last edited by mp9werks; April 1st, 2017 at 03:19 PM.
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Old April 1st, 2017, 03:42 PM   #23
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Yup, generalities. That means there are exceptions. I gave them. Anyone shooting really big boomers uses exactly what I gave to do so. Most folks have no clue what a really big hand cannon is like and what it results in when returning to pipsqueak loads. That article doesn't cover it. I didn't need to read very far to get that.
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Old April 1st, 2017, 04:18 PM   #24
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Originally Posted by 4dsjw View Post
I see that a lot of people like using the 147gr 9mm ammo that is out there, as do I. So I can't be the only one that has run in to the issue of the POI being higher than the POA (@ 15 yards). Does anyone have a good way to get the POA and the POI to be the same with 147gr ammo? Or does everyone just use a 6 o'clock hold?

For this discussion assume that the front sight is tritium or fiber optic, etc,. and cannot be altered. A taller front sight could be installed, but the existing sight cannot be modified. Thanks for your thoughts.
I have some Speer 147 grain loads that I had bought from a coworker, but usually don't go out of my way to buy 147's. I tend to stick, in 9mm anyway, to nothing heavier than 124's. Now, when it comes to .40 S&W, I go the other way. I do not like 155's, can tolerate 165's, but prefer 180's.
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