Author Topic: 375JDJ Problem (Read 1124 times)

madcop94 · « **on:** October 23, 2005, 08:01:59 AM »

I bought a 375jdj barrel a few months back and seem to have trouble sighing it in. I can't seem to get a constant group out of it. it strays from 1" to 2" to either side and up n down. Best group is about 4". Today at the range I noticed that the casing has alot of play in it when put in the chamber. When measuring it the outside diameter of the casing was .462 and the inside diameter of the chamber was .471, seems like alot of play to me considering that my 22 barrel only has a .001 diff between the casing and the chamber. Just wondering if anybody else ran into this problem. The barrel is from Fox Ridge Outfitters 15" encore barrel w/muzzle tamer.

MS Hitman · « **Reply #1 on:** October 23, 2005, 08:53:38 AM »

If you could provide some additonal information, someone may be able to give a bit of assistance. Are you reloading, if so, which dies are you using? Are you using T/C cases or forming them from .444 Marlin cases. What bullet(s) are you using?

I have a .375 JDJ barrel, but it is from SSK. After three trips to Africa, deer and groundhog hunting, it still shoots to under an inch at 100 yards.

Graybeard · « **Reply #2 on:** October 23, 2005, 10:13:42 AM »

And who made the barrel? Is it an SSK? A TC? or someone else's half hearted attempt to duplicate the round?

Have you verified the base is on solid as a rock? What kinda base and rings are you using? What scope? Do you know the scope is OK or do you have another to put on to check? It might just be a loose base/ring/scope problem.

Have you ever shot anything at the recoil level of this round? Might you be flinching? Has anyone else who is used to such recoil tried it?

madcop94 · « **Reply #3 on:** October 23, 2005, 10:23:47 AM »

I am using factory 220 grn ammo, the barrel is a factory TC barrel, Also I checked the TSOB base and rings(three) and everything is rock solid, Yes I have shot plenty of high recoil calibers, the only thing I am not sure is if the scope is junk. Like I said though what is weird is the slack between the casing and the chamber. I guess I cant see how the bullet could travel constantly straight is it is not seated firm in the chamber..

MS Hitman · « **Reply #4 on:** October 23, 2005, 03:12:13 PM »

Okay, I have my SSK barrel out and am making the following measurements:

Inside of chamber 0.471" ahead of the case rim cut
Formed (unshot) case 0.464" ahead of rim cut
Fired case is the same dimension

I am using .444 Marlin cases with the Hornady dies from SSK. Sounds like you need to try another scope if you think this may be your problem.

You also need to check the length from the rear of the rim to the shoulder between fired and unfired cases. The chance that your chamber may not be reamed correctly does exist. I'm not knocking T/C, but they do let a stinker out from time to time, just like everyone else. Cases are extremely easy to form for this cartridge. If you can find someone close who loads this caliber, try making some to fit your particular chamber.

HL · « **Reply #5 on:** October 24, 2005, 01:37:01 AM »

IMO, your problem is buying the barrel from TC. That's just been my experience in the past. I've had oversized chambers, out of round barrels, and throats improperly cut, etc.

The only barrel I ever had from TC that shot worth a hoot was a 22 hornet.

I got rid of everything else at gun shows and bought custom barrels. IMO, it doesn't matter who the custom maker is, SSK, VV, "B" Bullberry, they all make good quality barrels, only the price differs.

BTW, my 375JDJ was made by "B" and also shoots under 1" at 100.

Good shooting.

HL

madcop94 · « **Reply #6 on:** October 24, 2005, 05:05:20 PM »

Problem solved,, I called T/C tech support and he advised that after two to three rounds the bullet will stray a couple of inches either way. Went out and tried it today. first two shots snake eyed and the third was 2" left. So I guess it is normal.

Graybeard · « **Reply #7 on:** October 24, 2005, 05:32:17 PM »

No that is NOT normal. Don't buy into that excuse. There is no reason why five in a row shouldn't all be together. Wide flyers are never the norm. It indicates a problem. You just have to narrow down what the problem is.

HL · « **Reply #8 on:** October 25, 2005, 01:30:33 AM »

I completely agree with GB. That is definitely not normal. there is no rhyme or reason for what they are telling you.

It's just their way of telling you that you have a lemon and need to live with it.

Send it back and tell them to give you a properly built barrel.

My 375JDj doesn't do that and I don't know of anyone else, with a properly cut barrel, whose JDJ does that.

Call any of the custom makers, especially JD Jones and ask him is that's normal. I know what he will tell you.

What you are going through right now is exactly why I stopped buying TC factory barrels!!!!!!

palgeno · « **Reply #9 on:** October 25, 2005, 03:55:11 AM »

I don't have any experience with the factory ammo since I use an SSK barrel---and I roll my own---and have not loaded the 220 gr bullet----do you suppose the ammo could be the problem and not the barrel? Anyone you know have a proven barrel you can try that ammo in?

pg

gtram · « **Reply #10 on:** October 25, 2005, 10:06:16 AM »

You might try shooting a heavier bullet in it and/or a different load combination. I also don't buy into it shooting "Normal". There is some
sort of problem going on here.

Lawful Larry · « **Reply #11 on:** October 26, 2005, 04:03:10 AM »

Quote from: madcop94

Problem solved,, I called T/C tech support and he advised that after two to three rounds the bullet will stray a couple of inches either way. Went out and tried it today. first two shots snake eyed and the third was 2" left. So I guess it is normal.

AS GB and the others have said this is not normal. All my handgun Contender barrels are shooters. The only time I have had your problem is with my Encore rifle .30-06 barrel. I had the exact problem you had. I got the same run around from the techs and gave up on them. I am in the process of getting rid of the Encore.

You can keep trying the factory, but don't look to get any help from them! :x

Graybeard · « **Reply #12 on:** October 26, 2005, 04:26:27 AM »

TC was once about the best in the industry for Customer Service and quality was high. Now they are near the bottom in customer service and quality has slipped tremendously. The money that should be spent on quality and customer service is instead being spent on magazine ads and paying writers to go on hunts and tout their products as the best when clearly they no longer are.

Jay HHI6818 · « **Reply #13 on:** October 29, 2005, 02:53:41 PM »

I would try shooting some heavier bullets in you 375JDJ. The factory chambers are cut with such a LOOONNNGGGG throat that it is next to impossible to seat a buulet close to the rifling. I bought this 375JDJ last year at the loacl Gander Mountain and about a month ago was the first time I worked up some loads. This was the second load it tried.

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Three shots went 1.25 inches and the pulled shot opened it up to 2 inches. When the trigger broke I knew it was a bad shot.

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