9mm 115gr Lead shooting low
You are Unregistered, please register to use all of the features of FirearmsTalk.com!    


Firearm & Gun Forum - FireArmsTalk.com > Gear & Accessories > Ammunition & Reloading > 9mm 115gr Lead shooting low

Reply
 
LinkBack Thread Tools Display Modes
Old 04-30-2013, 03:14 AM   #1
Feedback Score: 0 reviews
 
aandabooks's Avatar
 
Join Date: Sep 2010
Location: Central Illinois
Posts: 1,590
Liked 355 Times on 212 Posts
Likes Given: 64

Default 9mm 115gr Lead shooting low

My 115gr lead round nose reloads are shooting 6" low out of two different pistols. SR9 and M&P 9c. But my 147gr FP lead reloads are shooting to point of aim. I am reloading with Bullseye in both and am running middle of the road charges. Not that there is a tremendous amount of range.

Do I need to up the 115 loads a little higher? Also for some reason the 115s call for an OAL of 1.050" and the 147s are 1.155". Maybe I'm seating too deep on the 115s and leaving too large a gap until the bullet gets to rifling?


aandabooks is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 04-30-2013, 04:51 AM   #2
Moderator
FTF_MODERATOR.png
Feedback Score: 1 reviews
 
robocop10mm's Avatar
 
Join Date: Jul 2007
Location: Austin,Texas, by God!!
Posts: 10,623
Liked 3268 Times on 1688 Posts
Likes Given: 338

Default

Believe it or not a light, fast bullet will shoot low through a handgun. This is counter intuitive, but the light fast bullet leaves the barrel before recoil has started moving the muzzle up. Going faster will only make matters worse.


__________________
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball
robocop10mm is offline  
 
Reply With Quote
Old 04-30-2013, 05:14 AM   #3
Feedback Score: 0 reviews
 
Join Date: Sep 2012
Location: The Edge of Darkness
Posts: 6,495
Liked 4795 Times on 2681 Posts
Likes Given: 1736

Default

The elapsed time in the barrel is longer for the heavier bullet. The muzzle rise is higher in the arc before the exit. The lighter bullet has a shorter lap time in the barrel exiting at a lower point in the muzzle rise. A higher front sight is needed to compensate for the heavier bullet.
nitestalker is offline  
 
Reply With Quote
Old 04-30-2013, 05:40 AM   #4
Feedback Score: 0 reviews
 
bigjim's Avatar
 
Join Date: Oct 2009
Location: Elk Grove Village, IL
Posts: 560
Liked 206 Times on 131 Posts
Likes Given: 164

Default

I think what they are saying is if you are going to stick with the 115 grain bullet, you need to change your point of aim.

Jim
bigjim is offline  
beaglesam Likes This 
Reply With Quote
Old 04-30-2013, 06:46 PM   #5
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
Gonzilla's Avatar
 
Join Date: Jan 2012
Posts: 1,918
Liked 325 Times on 250 Posts
Likes Given: 150

Default

Fear not, I have been there and done that trying to adapt to other peoples reloads. New powders, new bullets or it could even be you shooting at different ranges.

The cheapest solution is install high quality - adj sights ! Low n left or high n right - No Problem...

The only problem is if the load shoots outside of the adj range of the rear sight. (Front Sight height counts as well). Like everything in life - there is a formula for that - App to follow...

Note: most 9mm shoot better w heavier rds. SPR. Armory test for accuracy w 124 gr. fodder. Try changing grips as well - it worked for me w my XDM 4.5" (like changing hold on rifle)



Last edited by Gonzilla; 04-30-2013 at 06:53 PM.
Gonzilla is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
9mm Reman LAX - 115gr Bigcountry02 In Stock 0 04-08-2013 04:49 PM
Shooting lead in Glocks coachclark Glock Forum 25 03-08-2013 05:52 PM
115gr or 124gr 9mm 99monguse Ammunition & Reloading 5 12-06-2012 08:05 AM
shooting sand or fine lead shot down the barrel to remove fouling? blackdragon Blackpowder & Musket 13 03-11-2012 03:13 PM
Shooting lead in an AR. Rick1967 AR-15 Discussion 4 12-11-2010 11:58 PM



Newest Threads