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View Full Version : REM SA 7400 bolt removal, Can't Do?


Badaboom
November 15, 2001, 11:18 AM
Can some experienced semi-Auto person provide me how to remove the bolt from a remington 7400 30.06 SemiAuto.:confused:

gunny6
November 15, 2001, 04:24 PM
These rifles can be a real pain too take apart..the bolt must be removed to the front, after the recoil spring, gas tube, and barrel are removed, a special wrench is required to remove the barrel nut...if you never have tried it you will be better off letting your local gunsmith handle the job..........

Badaboom
November 15, 2001, 04:34 PM
thanks for the info. Doesn't sound pretty.
This is a big issue for creating dummy reloading rounds having
the firing pin removed for each dummy round you wish to create.
Thanks for letting me know your experiences:barf:

James K
November 17, 2001, 09:20 PM
Hi, Badaboom,

I can't resist asking what you are doing that requires the bolt to be removed for making dummy rounds.

Jim

Badaboom
November 19, 2001, 09:57 AM
Jim,
Basically a need to remove the firing pin is to release any
pressure to be applied to the round/bullet once chambered to
check maximum O.A.L - bullet length, to actually touching the rifling in the barrel. With a magnifyng glass check the bullet once chambered. See if you recognize any scaring. Shorten bullet until very very little or any scaring is relavent you now have the maximum length for this specific bullet prior to engaging the rifling of the barrel. It was suggested to me to then adjust maximum O.A.L. of the specific loaded bullet tighter/shorter for adjust for fine tuning the jump of the bullet prior to engaging the rifling of the rifle barrel. This will be slightly different with each rifle for each has its unique characteristics to its chambering and barrel rifling.

Example:
Start a dummy load and seat bullet check bullet OAL see scaring.
Use very fine steel wool remove scaring.
Seat bullet shorter recheck for scaring.
Get final seating complete very very little scaring or none.
This is your dummy round OAL length bullet, keep this bullet as a dummy round for this specific bullet mark down all measurements as reference. (put NO primer in this dummy round).
O.A.L for this dummy round example 3.401

Now start your reloaded live rounds use your dummy round as a reference.
lets say set the seating depth at 3.397 this will allow for a bullet jump prior to engaging the rifle barrels rifling of .004.

This can be utilized in may bolts action and probably other style action rifles.

With semi-automatic rifles it is more important that they will feed and fit the the clip.

Hopes this clears up why I perform this operation.

This is why I was wanting to know how to remove the firing pin for the Remington model 3400 semi-auto 30.06.

This is not required by any means, its just precision reloading at its .001.................

James K
November 19, 2001, 08:26 PM
Yes, I know how to make up a dummy like you describe. But I still don't quite see what the firing pin, which does not touch the round, has to do with it. The firing pin spring keeps the firing pin out of the way in all this.

(I hope you are not using a live primer in your dummy and are concerned about firing it!)

I hate to say this, but IMHO, all your precision and measurements are going to go straight to hades when that 7400 strips a round out of the magazine and slams it rudely into the chamber. What you are describing may be good for a carefully single loaded bolt gun, but a 7400 is a bang-bang deer busting machine, not a precision instrument. No matter how carefully you build your loads, I am afraid all your work is not going to mean much to the deer.

Jim

Badaboom
November 20, 2001, 09:57 AM
Jim,
I can understand your perspective. As I stated
With semi-automatic rifles it is more important that they will feed and fit the the clip.

Watchman
November 23, 2001, 09:05 PM
Ive got a 7400 and I reload for it. I used to use Remington Corelocks for the bullets but havve since switched to Nosler Ballistic Tips because the tip of the bullet dosent deform from the slamming and jamming that takes place when you shoot it.

You cant really long load for the 7400. I tried it and the bullets are way too long to fit in the magazine. Now, I just load them as long as I can and have them not hang up in the magazine.

As for accuracy, Im getting around an inch at 100 yards , which aint too bad for a semi .
I have yet to recover a bullet on a deer, I shot several with it and the bullets just blow right through them.

Nalle
January 9, 2002, 12:45 PM
watchman:

I´ve been thinking of getting my hands of one of thoose 7400´s.
But how well does it operate? I was thinking of loading some light loads (110grains) for plinking and dont know if they are enought to operate the gas-operated mechanism? You got any experiance on lighter loads? I´m planning on getting the 30-06 version of the 7400.

Badaboom
January 9, 2002, 12:48 PM
nalle,

Badaboom
January 9, 2002, 12:52 PM
nalle,
Personally I do not own a 7400 or any large caliber HP semi auto rifle. I have a friend that owns such a monster. I would suggest for reloading and accurancy to stay more with a bolt action. 30.06 is a good caliber dependent on you main application for the rifle you are writing about.

Badaboom
January 9, 2002, 12:54 PM
nalle, For plinking I use a ar-15 .223 works wonders.
Less expensive loads great reloading/accuracy caliber. I think I would probably get a smaller caliber for plinking

Nalle
January 9, 2002, 01:06 PM
Badaboom

Sorry, I wasn´t clear on my question. Since I´m swedish I can´t get a gunpermit for a ar-15. The 7400 on a hunting/recreational permit is one of my few options. (I know, swedish gunlaws suck bigtime).
I also might want to use the 7400 for bear and moose-hunting up here in sweden, so an .223 cal is not an option (swedish huntinglaws has .270 as the minimum cal for hunting thoose animals).

So what I really want to know is, does the 7400 in 30-06 cal reload and operate well with lighter loads? 120grain or 150grain is considered light loads in my opinion

Thx for the reply anyway :)

Badaboom
January 9, 2002, 01:21 PM
nalle
I see. Well we know we are going .270 or above. Good luck finding someone with lite rounds for the 30.06 in the 7400 I can't provide you with information for that setup and loads. Although I feel I should still guide you to the bolt action rifle for best reloading and accuracy. I personally own a 7MM Rem Mag Caliber for my larger caliber HP rifle. I think the next thing on my list maybe the weatherby .340 mag. or something other around this caliber. The .308 maybe another caliber to consider. good luck with your selection

Nalle
January 9, 2002, 01:45 PM
Badaboom

I´ve already got 4 boltaction rifles :)
1 Brno 452 cal 22lr for hunting critters and plinking
1 rem 788 .308 for hunting deer
1 browning 30-06 for hunting about everyting from distance
1 Husquarna 7.92x57mm (caliber is called 8x57JS here in sweden, but its the same as german k98mauser. ) w/ reddot sight for hunting large game close-quarters

so what I´m looking for is a recreational semiautogun that I´ll be able to convince swedish authorities I´ll use for hunting. And the 7400´s are allowed for that in sweden

but I totaly agree w/ you. If you´re only getting one gun for hunting, it should be a bolt-action.

thnx for reply!

Badaboom
January 9, 2002, 01:50 PM
1 Husquarna 7.92x57mm (caliber is called 8x57JS here in sweden, but its the same as german k98mauser. ) w/ reddot sight for hunting large game close-quarters

Boy I would sure like to get ahold of one of those
what caliders did they produce the Husquarna in.

What do you know about any availability.
These are NO longer manufacturered correct?

Sounds like you have the moose bear gun.
If I were to purchase another small caliber bolt action rifle I would go really small .17 for the little ones or the 6MM I just like the caliber. (most people go with the .243 due to more commonly used configuration).

Nalle
January 9, 2002, 02:05 PM
Badaboom

You got it! I Got the husquarna 8x57js from my dad on my 25th or 26th birthday. Its probably about 40-50yrs old (uses the mauser 96 mechanism), but it looks and shoots great! 1-1.5 moa with surplus ammo.

Yes, they don´t produce the 8x57 any more. The Husquarna company don´t even makes guns anymore, and thats a shame!
In sweden you can find alot of old husquarna rifles for about 50-60$.

I think the husquarna was made in alot of calibers. Besides the most available calibers (.308, 30-06 and more) the most unique were: 6.5x55swedish, 8x57js (same as 7.92x57mm german), and an improved version of the 8x57 with a bigger bore called 9.3mmx57. Later an improved version of the 9.3mmx57 was made with a larger case, the 9.3x62mm wich is about the same as the .35whelen.

So; Here you can get an 6.5x55swedish, 8x57js, 9.3x57 or 9.3x62mm husquarna rifle for about 50-100$ in mint condition.
You can also purchase 6.5x55mm swedish army surplus rifles unused and w/ matching numbers for about 30-40$ but you´ll have to modify thoose if you want to fit a scope on them. The shoot great though. The rear sight is adjustable to about 1.5miles range, and the 6.5x55 is a really straightshooting caliber, althought in my opinion it doesn´t quite suffice to shoot moose or bear with. Alot of swedish hunters by theese rifles for deer and buck hunting though. Great longrange precision and cheap surplus ammo, and recoil is only somewhat more then that of a .223

I hope I´ve answered some of your questions

ps. My favourite Husquarna is the 8x57JS, packs alot of energy, (200-220grains bullit) and shoots pretty straight, although bullet drops fast when you reach 200-250yards. Ds.