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Author Topic: High groups  (Read 547 times)

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Offline Islandcop

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High groups
« on: February 28, 2009, 06:15:56 AM »
Good day all. I'm new to the site, new to TC's in general but have alot of trigger time on tactical weapons.

I recently bought a new G2 frame. Saw a great deal here for a TC 10 in. .44 barrel and bought it. I'm very happy with the deal and th guy I bought it from was very helpful. I took it to the range today and used some WW SJHP, 240 gr. hunting loads just to break me in to the gun. Gun groups fine for the 1st time but shoots high. So high in fact that I had to screw the rear sight all the way down and then shoot 8 in. low to hit the bull. Started at 25 yrds, then 35 yrds. was planing to move out to the 50 but never got there. What am I missing? Are these 100 yd load?, Front sight to low? Does TC even make different height front sights? I was planning on putting a Nikon 2x LER scope on it but want these questions answered first. I'll rely on ya'll experience.

Islandcop 
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Offline wmurrell

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Re: High groups
« Reply #1 on: February 28, 2009, 12:52:04 PM »
go to the sticky at the top of the page, T/C FAQ, first reply has a link to a sight height chart. See if yours match. My guess is one of yours is wrong. OR hurry up and scope it and forget the sights ;D
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Offline Ladobe

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Re: High groups
« Reply #2 on: February 28, 2009, 03:49:58 PM »
Welcome.

I doubt you'd see anywhere near that much difference in sight settings needed even between light target loads and full house loads, so I also doubt it is the load.   As suggested it sounds like a sight height problem.

Even some long time TC users don't know that there are different factory sight heights for different barrels.   It can lead to a problem that luckily doesn't come up often when buying used TC barrels, but it does now and then.   Open sights are taken off a barrel to mount a scope, they get put aside.   Eventually several barrels have had their sights removed by Joe TC User and he didn't mark well what each set came off of.   So the wrong ones can easily end up on a barrel when it is sold.   Not an intentional mistake buy the seller, but it sure creates a problem for the buyer who wants to stay with the irons.   

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Offline Grumulkin

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Re: High groups
« Reply #3 on: February 28, 2009, 04:14:30 PM »
Before you conclude the sights are bad, shoot it with hotter loads.
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Offline Islandcop

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Re: High groups
« Reply #4 on: February 28, 2009, 11:59:24 PM »
Great advice,  Just as I thought, asking here would provide some interesting ideas. As this is a whole field for me to explore "The journey is the destination".

Thanks.
Islandcop
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Offline Ladobe

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Re: High groups
« Reply #5 on: March 01, 2009, 06:13:30 AM »
Quote from: Grumulkin on February 28, 2009, 04:14:30 PM
Before you conclude the sights are bad, shoot it with hotter loads.

That would tell something too... but if I were to just suppose something, it would be that hunting loads would be closer to hotter than colder loads.

Much easier to just meaure the front and rear sights to see if they are factory spec or not as a starting point before stirring the pot with other possibilities IMO.
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Offline Dirty Tiger

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Re: High groups
« Reply #6 on: March 01, 2009, 04:37:51 PM »
I once shot some 45lc cowboy loads that were over 16 inches high at 30 yards.  This was in a 15 inch 460 s&w mag barell. When I switched back to 454 and 460 rounds accuracy was back to point of aim.
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Offline pab1

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Re: High groups
« Reply #7 on: March 01, 2009, 08:16:57 PM »
I had the same problem with "hot/hunting" loads in one of my 10" .44 mag barrels. I filed the rear sight down and filed a new notch into it. It works fine now.
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