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Trouble with first shot accuracy with T/C Prohunter 50 cal.

 
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  #1  
Old 01-12-2011, 09:19 AM
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Join Date: Dec 2010
Location: Hartwell, GA
Posts: 63
Trouble with first shot accuracy with T/C Prohunter 50 cal.

I bought a new T/C Endeavor Prohunter Encore a couple months ago and I am having trouble with the first shot not grouping with the other shots. I started out with Pyrodex; started at 100gr and worked up to 120gr with average groups at 100 yards. This was with cleaning after every shot.
The velecoity and accuracy were not where I wanted it to be so I read about BlackHorn 209. I bought their brand of Montana Xreteme cleaning solvent too. I read where it is not necessary to clean after every shot so, I decided to shot 5 shot groups.
The Problem: I can clean the barrel with the solvent. After making sure the bore is completely dry. The first shot does not hit in the same spot twice. It is usually 2" to 3" high or low, left or right. The remaining shots will group in a 1" circle dead center at 100 yards. So, I decided that I just needed to shot it with a fouled barrel. Well, I tried that too. I put 3 shots through it and waited a couple of days. I wanted to test it with a fouled barrel. I decided to shoot a 3 shot group with the barrel fouled. The first shot was 3" low and to the right. The remaining two shots hit the center of the target at 100 yards.
Does anybody have any advise about what I can try. I really like the idea of the Blackhorn 209 powder but I may need to go a different route.
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Old 01-12-2011, 12:36 PM
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Join Date: Sep 2010
Location: Coldwater michigan
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Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

What bullets are you using? Are you seating the bullets the same every time? Since you say the first one is either high or low, left or right, then make sure every screw on the scope and bases are tight,( you didn't mention if you are using a scope, i'm just assuming ). How quick after your first shot are you shooting the rest of them? My first thought your shooting the first bullet out a clean bore and the rest are going out a fouled barrel but you also stated it does the same thing for the first round out of a fouled barrel too. I have heard that some guys are reloading quick enough that they are getting their barrels warm, (with blackhorn 209 ). It may be a possibility that although your first shot is from a cold barrel that IF your loading relatively fast the rest of your shots could be coming out a warm or hot barrel. That is just what i am thinking could be some possibilities. Meatyrem.
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Old 01-12-2011, 01:04 PM
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Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

[Meatyrem; Thanks for the information. To answer some of your questions. I have tried PowerBelt 290gr BT, 305 BT and Hornaday 300gr and 350br FPB bullets with the same results. I have a Zeiss Conquest 4-12 scope of the encore prohunter. When I started using Blackhorn 209 I began with 100gr and worked up to 120gr. I have checked the mounts and they are tight. I also realized that the barrel could heat up so I tried letting cool; I tried cleaning between each shot; both with the same results. If I cleaned the barrel between shots I got a 6" average group at 100 yards. When I let the barrel cool (approx. 5 min. between shots) I still got the 6" group.
The 3 shot groups get tighter when I do not clean between shots and I reload without delay. Barrel will get warm to the touch and I alway stop before the barrel heats up too much. This is confusing because I have shot centerfire rifles, flintlock and cap muzzleloaders for years. This is the first time I have tried a inline.
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Old 01-13-2011, 12:16 AM
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Location: Coldwater michigan
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Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

That's a tough one. I started on blackhorn last year, I was using the 200gr shockwaves, win 209 primers and began at 100gr of powder. I was right about at 1 1/2 inches, then I moved up to 120gr and my group shrunk right down to 1/2 inch groups consistantly. Then the sabots changed and my groups opened up to about 2 1/2 inches. That was in my TC prohunter. That being said I know what they are capable of. But another thing that may be needed to try is switching bullets. How do those powerbelts and those hornady's load in the bore; do they have a snug fit or do they load easy? I know that the tighter the fit ( bullet and sabot combo ) the better my accuracy was for my rifle. Other than that I'm still stumped. I'm sure the other members will start to give some possible solutions.

Meatyrem
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Old 01-13-2011, 12:24 AM
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Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

I'm having to lean towards the bullets being the culprit if you had the same thing happen while using two different powders.
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Old 01-13-2011, 03:50 PM
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Join Date: Dec 2010
Location: Hartwell, GA
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Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

I thought the powerbelts might me the problem because they did not fit tight in the bore. I am used to loading a 54 flintlock with patched round ball so I am familiar with the effort required to push the ball down the barrel. Those easy loading powerbelts just didn't seem right. So, I tried the Hornaday 300gr and 350br FPB bullets. The hornadays fit tighter in the bore but not as tight as a patched round ball. My line of thinking with the hornaday is they are designed like the old minie ball with the cupped base. I was hoping they would flare at the base enough to snug up into the rifling better.

My goal with the T/C Prohunter is to get a load so I can hunt elk and deer and Colorado so I have stayed away from the sabots. Thats why I have tried the power belts and hornadays FPB bullets.

I think you are right about the problem being the bullets. It appears I need to try another type. Do you know of another manufacturer of a bullet that is not a sabot?
Thanks for your help.
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  #7  
Old 01-13-2011, 11:10 PM
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Join Date: Sep 2010
Location: Coldwater michigan
Posts: 507
Re: Trouble with first shot accuracy with T/C Prohunter 50 cal.

I'm not aware of another type of bullet out there that doesn't use sabots, other than the good o'l pure lead conicals ( tc maxi hunter-maxi ball ). I like you have problem with bullets, I just need to find the right ones and get out and shoot them. Tc changed sabots and the new ones don't fit nearly as tight as the old ones and therefore my groups opened wide. Other than that I'm really pleased with my set up and very pleased with blackhorn. For elk and deer both, I would use the 300gr shockwave or maybe the bonded version. Those can be pushed to 2000+ and would be very effective. But if you want to stay away from sabots the only ones I know of anymore is the Thompson center conicals. Good luck
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