Rifle shoots high

Sabot · 07-04-2009, 12:58 AM

I bought a K-31 from Wideners, it's in good condition, not great. I took it to the shooting range today for the first time. It shoots 7" high at 100 yards, consistently. Why? How can I fix this? I can only adjust elevation up, not down. Please help me to understand and fix the problem.

frenchy · 07-04-2009, 01:27 AM

Quote:

Originally Posted by Sabot

I bought a K-31 from Wideners, it's in good condition, not great. I took it to the shooting range today for the first time. It shoots 7" high at 100 yards, consistently. Why? How can I fix this? I can only adjust elevation up, not down. Please help me to understand and fix the problem.

well i don't owen a k-31 so i can't look at the rear sight but if you can make the knoch? a LITTLE deeper that will bring the muzzle down but if you shoot different ammo who knows where it'll shoot?also its easy to remove metal harder to add it. plus it would be a permant mod to your fine swiss rifle.another way is to raise the front sight like add a bit of rubber or plastic tube to the post or blade.I'm sure someone else with a k-31 could be of more help. good luck sabot

troy2000 · 07-04-2009, 01:33 AM

I'm betting that like most battle rifles of that era, the K-31 was sighted in at 300 yards (or meters), and therefore shoots high at 100 yards. It's the nature of the beast.

I just went looking, and taller front sights are available for it. You'll probably need to file one down a bit at a time, until it shoots where you want it. Tennessee Gun Parts has them here:

http://www.tngunparts.com/k312.htm

I'm sure the guys who know K-31's will be making an appearance soon;; I'm just filling in until they get here.

frenchy · 07-04-2009, 02:08 AM

Thanks troy you always come up with great links and FAST!

Sabot · 07-04-2009, 04:50 PM

Thanks troy2000 for helping me out. I just ordered a taller sight blade through the link that you posted, I guess the gun shooting high must be a common problem.

troy2000 · 07-04-2009, 04:55 PM

Quote:

Originally Posted by Sabot

Thanks troy2000 for helping me out. I just ordered a taller sight blade through the link that you posted, I guess the gun shooting high must be a common problem.

Well, my company's motto is, "Glad to be of service." Think I can hit 'em up for a raise now?

Iron_Colonel · 07-04-2009, 09:58 PM

What kind of ammo were you shooting? Both of my K31s shoot right on at 100 yds. That is interesting. But it sounds like you ought to be all right with the taller front sight.

Sabot · 07-05-2009, 02:56 AM

I was shooting PRVI Partisan and GP11 military ammo from the gun show, same as they have at samco Welcome to Samco Global Arms, Inc.. I also had another shooter try my gun to see if it was my aim, all shot high. I don't understand why this is a common issue with this rifle. I'll wait and see what happens when I get the new sight.

Farmer · 07-06-2009, 06:06 AM

There supposed to be right on at 100 but they shoot 10" high when set at 300 and this is in the manual.

I converted my pfd manual to text and this is what it says,

70 At distances in excess of 300m, it is necessary to aim at the bottom of the target; less than 300m,
aim at the center or just at the bottom (See Appendix II, tables 4 and 5).

Figs. 32 & 33

jmeck · 07-14-2009, 09:31 PM

I have 3 K31's and they all shoot high with gp11 ammo,about 5-6 inches
high. I compensate for it, but a taller front sight would be nice. I think I read somewhere that .040 of an inch will change your POI by about 6 inches. I might try to come up with something simple to slide over my sight to raise it.

jason1965 · 07-14-2009, 09:44 PM

I have a K31,and it is right on the money at 100 yards.It is not really a common problem,maybe your rear sight is not all the way down for some reason or another.
Good luck with it.Jason

Big Dog · 07-15-2009, 11:17 AM

My Swiss Miss shoots pretty much dead on at 100 yards, but what I have done with other high-shooting milsurps is to put a dab of JB Weld on the top of the front sight blade and file it to blend it in and adjust it to hit the bull - gives the sight some extra height and the dark grey color matches worn blueing pretty well.

Sabot · 07-16-2009, 12:49 AM

Quote:

Originally Posted by Big Dog

My Swiss Miss shoots pretty much dead on at 100 yards, but what I have done with other high-shooting milsurps is to put a dab of JB Weld on the top of the front sight blade and file it to blend it in and adjust it to hit the bull - gives the sight some extra height and the dark grey color matches worn blueing pretty well.

Thanks for the info Big Dog, maybe I'll do the same with my other high-shooting milsurps instead of buying new sight blades.

tongix · 10-29-2009, 11:23 PM

It should be hitting right on bec they all start at 100 meters on the rear. Mine is spot on.

07-04-2009, 12:58 AM	#1
Sabot Member Join Date: Aug 2008 Location: Simi Valley, California Posts: 46	Rifle shoots high I bought a K-31 from Wideners, it's in good condition, not great. I took it to the shooting range today for the first time. It shoots 7" high at 100 yards, consistently. Why? How can I fix this? I can only adjust elevation up, not down. Please help me to understand and fix the problem.

07-04-2009, 09:58 PM	#7
Iron_Colonel Senior Member Join Date: Jan 2008 Location: Washington St. Posts: 3,282	What kind of ammo were you shooting? Both of my K31s shoot right on at 100 yds. That is interesting. But it sounds like you ought to be all right with the taller front sight. __________________ Mosin Nagant evangelist on a mission to convert YOU!

07-06-2009, 06:06 AM	#9
Farmer Senior Member Join Date: Nov 2007 Location: Limbri NSW Au Posts: 496	There supposed to be right on at 100 but they shoot 10" high when set at 300 and this is in the manual. I converted my pfd manual to text and this is what it says, 70 At distances in excess of 300m, it is necessary to aim at the bottom of the target; less than 300m, aim at the center or just at the bottom (See Appendix II, tables 4 and 5). Figs. 32 & 33 __________________ Cheers, Rob I'm into gun control - I always use both hands!!!!!!! Last edited by Farmer; 07-06-2009 at 06:24 AM.

07-14-2009, 09:31 PM	#10
jmeck Senior Member Join Date: Apr 2008 Location: NC Posts: 683	I have 3 K31's and they all shoot high with gp11 ammo,about 5-6 inches high. I compensate for it, but a taller front sight would be nice. I think I read somewhere that .040 of an inch will change your POI by about 6 inches. I might try to come up with something simple to slide over my sight to raise it. __________________ Just because I can't explain why its done this way,does't necessarily mean you can do it differently

07-15-2009, 11:17 AM	#12
Big Dog Senior Member Join Date: Mar 2002 Location: Tallahassee, Florida Posts: 12,917	My Swiss Miss shoots pretty much dead on at 100 yards, but what I have done with other high-shooting milsurps is to put a dab of JB Weld on the top of the front sight blade and file it to blend it in and adjust it to hit the bull - gives the sight some extra height and the dark grey color matches worn blueing pretty well. __________________ "A bold spirit embiggens the smallest man!" Jebediah Springfield

07-04-2009, 01:33 AM	#3
troy2000 Banned Join Date: Dec 2004 Location: Southern California Posts: 14,554 Images: 9	I'm betting that like most battle rifles of that era, the K-31 was sighted in at 300 yards (or meters), and therefore shoots high at 100 yards. It's the nature of the beast. I just went looking, and taller front sights are available for it. You'll probably need to file one down a bit at a time, until it shoots where you want it. Tennessee Gun Parts has them here: http://www.tngunparts.com/k312.htm I'm sure the guys who know K-31's will be making an appearance soon;; I'm just filling in until they get here.

07-04-2009, 02:08 AM	#4
frenchy Senior Member Join Date: Apr 2009 Location: central CA. Posts: 423	Thanks troy you always come up with great links and FAST!

07-04-2009, 04:50 PM	#5
Sabot Member Join Date: Aug 2008 Location: Simi Valley, California Posts: 46	Thanks troy2000 for helping me out. I just ordered a taller sight blade through the link that you posted, I guess the gun shooting high must be a common problem.

07-05-2009, 02:56 AM	#8
Sabot Member Join Date: Aug 2008 Location: Simi Valley, California Posts: 46	I was shooting PRVI Partisan and GP11 military ammo from the gun show, same as they have at samco Welcome to Samco Global Arms, Inc.. I also had another shooter try my gun to see if it was my aim, all shot high. I don't understand why this is a common issue with this rifle. I'll wait and see what happens when I get the new sight.

07-14-2009, 09:44 PM	#11
jason1965 Senior Member Join Date: Nov 2008 Location: Bennington NewHampshire Posts: 901	I have a K31,and it is right on the money at 100 yards.It is not really a common problem,maybe your rear sight is not all the way down for some reason or another. Good luck with it.Jason

10-29-2009, 11:23 PM	#14
tongix Member Join Date: Oct 2009 Posts: 8	It should be hitting right on bec they all start at 100 meters on the rear. Mine is spot on.