I finally shot my 375 jdj carbine today.I shot it 4 times before it bent the weaver scope base.I got it sighted in an it missed the target way low.I also forgot my shells for my 375 wiN to shooot my big bore 94 .I forgot a box to put my targets on also.The 375 jdj has a little kick to it.I am thinking Why did I go to all this trouble now after I shot it.Its a big pain in the butt compared to the 375 win .I had to buy a TC frame,375 jdj barrel, brass ,bullets dies stock and forend.Then scope and scope mount.Its around $700 for a gun that is not that much more powerful than the 375 win i already had.I hope to get some good loads together .I got some 270 gr hornady bullets to load.I shot the 220 gr hornady today.I remounted the scope with another base .I will try it again tommorow.

I am going to try it tommorow again with out bending the scope mount this time.Any one else have a 375 jdj carbine?

Yeah I spent quite a while yesterday getting mine all dialed in and tuned up so I can now practice all summer. I have a 20" SS SSK barrel with T'Sob and 4x leupold. It will shoot 1.5 inch groups all day with the 260gr. Accubond or 270gr. Hornady. Probably would to a lot better but with the 4x and the recoil of the sub 6 lbs rifle I'm tickeled to death with it. 270gr. bullets are running at 2350 and 260gr. are running 2400fps.

I'm fairly certain your .375 Winchester will NOT do that!

Its just alot of trouble for a single shot rifle.My 375 jdj carbine is just over 5 pounds.I have had very good luck with speer 235 gr in my 375 win 1" groups at 100 yards but heard the bullet is too hard to expand.That TSB ssk scope mount has 6 screws right so you have to drill and tap two more holes?I just hope I get mine settled down to shooting without bending the scope mount again.I dont like the carbine stock I have its too low for the scope and I have to put my head too high.What is the best stock for heavy recoiling contenders?My 375 win weighs 7 pound with a scope and is with in 50 fps with 220 gr bullets and hardly kicks.Maybe a thumb hole stock would help hold this 375 jdj.

Yeah the T'sob has six holes, and mine came that way from J.D. Jones so no fuss on my end. Just a couple of Burris Zee Lows and I was in. Which contender are you using the old one or the new G2? The stock on the new G2 looks pretty good for scope use but I haven't tried one myself. If you have an old contender you are either looking at the custom makers Bullberry, Virgin Valley, ETC. or do like me and make your own. It wasn't nearly as hard as I thought it would be and I was out a lot more time then money. I built a little cast off into my stock (very dense highly figured Maple) and it sends most of the recoil away from your face. I found it to be a fun and enjoyable project, but I was also unemplyed at the time and it kept me from going crazy looking for a job. Feel free to hit me with any other questions and I will help the best I can.

Biathlonman::: What load did you use with the 270 gr Hornady?
With 46.5 gr H4895/Fed215 the old load JD recommended years ago I got 1900 out of a 14 inch.

I have the old style factory plastic stock .Its light but thats the only good thing I can say for it.I might trade scopes on this rifle and get lower rings that might help too.I have high burris signature rings on it now.I will try it again when te wind is not blowing.Have you tried the Hornady 225 gr spire points yet.They look just like the 270 gr but shorter shank.I am trying them in both of my 375 the win and the jdj.I want a good first shot load in my big bore 94 too.Have you used w-748 powder in the 375 jdj?The factory stock from the g2 wont fit old contenders I am told.The length of pull on this stock seem very short.I am glad I didnt get the folding stock I was going to get not a good match with the 375 jdj.I will try some 270 gr hornadys also.I have been trying reloader 7 powder in the 375 jdj.

hey dgr16 I don't have any experience with the 375 jdj in a carbine , but I do have it in a 12'' contender and I would never give it up , what I wanted you to no is , make sure you try the 220 gr.hornadays for deer size game IT CAN'T BE BEAT and save the 270 gr. for elk etc. they don't kick near as much as the 270 gr. and all are super accurate.With the 220 gr. hornadays Rd. nose- use H-4895 powder , fed 210 primer getting 2100 fps.hope this helps.

I've been wanting to try the 225 Hornady, but I really don't have that much use for them other then a low recoil load. For deer hunting I'm going to reach for the 6.5 JDJ barrel.

I'm running the old classic of 52gr. of AA2520 behind the 270gr. Hornady and the same amount of R15 behind the 260gr. Nosler (Check all loads for yourelf by working up carefully!) Out of my 20" barrel I am getting 2350 for the Hornady and 2400 for the Nosler, both about 10 feet from the muzzle. Picked up some of the AA powder cheap a year or so back and thats why I tried it out. H4895 was good in the accuracy department but couldn't match the velocity of the 2520. Accuracy of R15 behind the 270 hornady just wasn't up to par. The combo of R15 and the Accubond is making me fall in love with the cartridge every time I take it out! Elk is on the menu this fall, hopefully I will get a crack at one this year!

I wonder how much r-15 you can use with 225 gr hornady.I will try 270 hornadys soon.I think my cases didnt size right .I used my dillion 550 to size them.I might have to get a single stage to size them.I hope I find the magic load for this gun.

I really must say the one "magic load" probably is the 270gr. Hornady and the AA2520, I've yet to find anyone that didn't like the way it shot.

I just perfer the Accubond for the better downrange FPS it retains, should help with expansion which I have heard is suspect on the Hornady one you get out about 200 yards.

I still haven't been able to get my hands on data from JD Jones. I'm not sure what he thinks about R15 and the 225gr. For that matter I'm not sure what he thinks about R15 and anything.

I love aa1680 in my 375 win too bad it wont work in the 375 jdj.I have been using Reloader 7 .I have some w 748 I will try it also.I see why so many 375 jdjs have muzzle breaks.If wind stops I will try it again.I found an unfinished thumbhole stock with cheek piece on it .I wonder if that helps hold this thing better?

Anyone tried this ctg in a stronger rifle action? (Contender loads have to be mild). Is there room for more powder in the case? I am chambering a couple of Valmet double rifles for 375 JDJ and plan to take one to Africa. Anyone been down that path? Need load data! (Starting with Nosler 260 gr Accubond)>

I thought of recambering it in a Ruger #3 that is a win 375.It would work perfict.I also thought of a lever action 375 jdj I would like that .I thing a big bore 94 winchester in 444 would work just fine to convert.

I would love to have a #3 in .375 JDJ but getting there would probably cost you a fortune. I'm afraid their isn't much extra space in the case with my mentioned loads. Of course with a stronger action you could switch to a faster powder like H4895 and add a couple of more grains, but you would be treading in uncharted waters.

I found this 375 win Ruger # 3 for $400 .I have yet to get it but its still there.I should have bought it instead of this 375 jdj Contender.The stock on Contenders was not ment for heavy recoil.I shoot a 7 pound 416 rem mag in Remington 700 and it is alot more fun to shoot than this 375 jdj.I add a slip on recoil pad and changed to a shorter scope .Its seems the length of pull is too short.

I've got a very nice 375 Win Ruger no 3, and I also own a 375/444 reamer (can't call it the 375xxx says my reamer supplier), anyone interested email me. I'll supply the rifle pre or post conversion. For my Valmet double, I am going to use 375 Scovill loads reduced by 10%. They say IMR4895 is the ticket. I can only get about 50 grains in the case, up to the base of the neck. Suppose I could get as much as 55 in there using a drop tube/compressing the load. Anyway, I am going to work up and see how far I can push it.

Russ I tried sending you an e-mail ad your listed address but it bounced. Let me know what you would like for the rifle converted to .375/.444

I think maybe my first loads were too hot.I had 39 grs of reloader 7 behind a 220 gr hornady bullet .I am also thinking of sell this rifle its a big pain in the butt.It not any better than my big bore 94 winchester.I can shoot 38 grs of reloader 7 out of it with the 220 gr hornady or up to 40 grs of aa1680.I dont think the older contentender will take these new 375 jdj barrel even though TC said so.This rifle is becoming the one I wish I didnt buy!

i would just sell the barrel and buy 22rf, 223,7-30 & 375 win bbls..that's basically what i have and think it fits my needs very well. the 7-30 is a particurly good fit for the contender, you can load 140 sierra bullets to 2450 fps whuch is good for 250 yds with deer,and 100 gr sierra hpts for carring in the summer..as you already have a 375 you know how nice it is.. contenders are just habdy guns to carry and hunt out of tree stands with but i would not use i for anything that bites back.

I was going to use it for moose and caribou but I dont trust it enough for that .I am going to try w748 powder and see how it does if not any better its gone the whole thing frame rifle stock barrel and extra 222 rem super 14 barrel.I like my big bore 375 win alot better .I trust it in a pinch.I usually brush hunt with a light weight 416 rem mag.This thing is just too much money and too much trouble for a dang single shot rifle.That Ruger # 3 in 375 win would be a better gun than this contender .Its strong and dependable.

I finally shot lighter loads in this rifle.I lowered the powder charge from 41 grs of reloader 7 to 36 with 220 gr hornady.It shot one hole group at 50 yards.The wind was blowing about 30 mph so I didnt shoot 100 yards yet.It may have been that my cases were not all the way resized and they were too tight in the chamber.I am letting a friend size me some more new cases on his single stage press.I see why there are alot of muzzle brakes on these guns.Guns and Ammo did an article on a carbine this month and they said it kicked really hard.The factory load is supose to be 2500 fps the loads they had were 2300 fps.I guess I will keep working with this gun .IU added slip on recoil pad.The stocks are too thin.