par nanard35 » 22 Mar 2017 23:25
une autre version :
Adjusting the Remington 700 Trigger
To Steve, many thanks for showing me how to do this many years ago!
Background:
The Remington trigger system is a very good system that in years past came directly from the factory with a crisp and reasonable pull. These days however, Remington is producing triggers that are not as smooth and are liability proof with pull weights that have gotten to the point of being ridiculous. These changes are due to Remington trying to reduce the cost of their rifles and the ever present fear of civil liability from a trigger that is too light. If you are not conscious of gun safety and are not smart enough to keep your fingers off your trigger until you are ready to fire, I kindly ask you to read no further and find another hobby as I accept no responsibility for stupid people. The modifications that I am about to discuss have the potential to be extremely dangerous if not done carefully! If you have the slightest doubt about what you are doing, I strongly urge you to have a competent gunsmith adjust your trigger for you as the cost is minimal.
The Remington trigger:
The Remington 700 Trigger has three screws as shown in the following image.
When you look at your trigger you will see that the heads of these screws are covered in a glue or loctite. To adjust your trigger it will be necessary to scrape this glue off the screw heads and then determine if your screw heads are slotted or allen head. The next step in this process is to break the screws loose and add a small drop of oil to help with adjustments. I normally run the screws in and out a couple times to make sure that the screw is not binding and the surfaces of the screw are completely covered in oil.
Adjusting the trigger:
Back out the spring tension (trigger pull) screw to a light trigger pull that is adequate to keep some pressure on the trigger but is very light (trigger pull will be set later). Next back out the sear engagement screw, and the over travel screws several turns.
Once the screws are adjusted as above, close the bolt (without dry firing) and SLOWLY turn the sear engagement screw in until the firing pin is released. From this point, back the screw out a half turn. Without recocking the firing pin, screw the over travel screw in until you feel it contact the trigger lightly, preventing the trigger from moving. From this point, back the over travel screw out a quarter turn. When you pull the trigger at this point there should be a very slight movement of the trigger.
To adjust the trigger pull, adjust the spring tension screw to a pull that you like. As you turn the screw in the trigger pull will be increased and the pull will be reduced as the screw is backed out. I would not recommend going lighter than 1 to 1.5-pounds with a factory trigger and I prefer a trigger closer to 2 to 2.5-pounds for a big game rifle.
Work the bolt several times to cock the rifle and try the trigger with the trigger gauge and your finger to make sure that you are happy with how the trigger pull and release feels and the weight is something that you are comfortable with. I also recommend the use of a good trigger gauge to confirm that you are getting a consistent break. If the break you are getting is not consistent, then you may need to increase the trigger pull or consider having the trigger rebuilt or replaced by a competent gunsmith.
Safety Checks!
After you are happy with the feel of the trigger it is essential that you perform a safety check as described here. First, slam the bolt closed HARD up to a dozen times watching to see if the sear allows the firing pin to be released. If the firing pin is released, back out the sear engagement screw another ¼ turn, and repeat slamming the bolt again.
Next, cock the firing pin and put the weapon on “SAFE” and pull the trigger, release the trigger, put the weapon on “FIRE”. Repeat this process several times and if the firing pin is released, increase the trigger pull and repeat this process.
Once these safety checks are performed, take nail polish and seal the heads of the screws and allow it to dry. I normally try to use two coats to make sure that the screws are properly glued in place. Once adjusted, the Remington trigger rarely needs additional adjustment and can be as good as many after market triggers.
Postscript:
I have recently purchased a new Remington 700 Classic that quite literally had the God awful worse trigger I have ever felt on any gun. This trigger was rough in the sear engagement and the trigger spring itself was too stiff to allow for any adjustment that was acceptable for my taste. I understand that it is possible to buy replacement trigger springs and to have the sear surface polished but these are tasks that are beyond my level of understanding so I took a trigger out of a well used Remington 700 ADL from the early 1970’s and swapped it for my new trigger. I felt guilty selling my old ADL with that new Rem. 700 trigger that was so lousy, but at least the gun that I wanted to keep has a crisp 2-pound trigger that I can trust to work as a quality trigger should!
First, break the white "Seals of God" and screw the three screws out enough so that you see several threads.
En premier, casser le vernis de blocage et dévisser les 3 vis afin de faire apparaître plusieurs filets. (Pour ne pas forcer sur les vis lors de cette opération, il est préférable de chauffer légèrement le bloc du mécanisme de détente avec un décapeur thermique, c'est plus efficace qu'en essayant de chauffer la vis avec un fer à souder)
They may be hard at first, but they are NOT staked in place. The screws and trigger body are carbon steel, and may be rusted, or they may have a sealant on them. Just break them free. Drop a teeny bit of oil on the threads. Run the screws in and out several times until the oil is in the threads, and they turn freely.
Cette opération peut être dure au départ mais les vis ne sont pas matées. Les vis et le bloc détente sont en acier au carbone et peuvent être oxydés ou il peut y avoir du vernis de blocage sur les filets. Elles doivent tourner librement. Déposer un peu d'huile sur les filets. Visser et dévisser plusieurs fois les vis pour qu'elles tournent sans point dur.
OK, now down to business.
OK, maintenant passons aux réglages.
Back out the spring tension screw out until there is just enough pressure to keep the trigger forward, but it's very light (4 or 5 oz's) and easy to move.
Dévisser la vis du poids de détente (en bas à droite) en laissant assez de pression pour la maintenir en arrière (100 à 150 grammes) et qu'elle soit facile à bouger.
Back out the engagement screw, (the single screw on the left) and the over-travel screw (the upper screw on your right) out, so there's play to adjust.
Dévisser la vis d'engagement (la seule à gauche) et la vis de backlash (celle en haut à droite) pour laisser du jeu à régler.
Close the bolt on a cocked pin (don't pull the trigger) and VERY SLOWLY turn the engagement screw (on your left) in until the firing pin drops. Back it out about 1/3 to 1/2 of a turn. With the firing pin down, you should now feel the trigger wobble back and forth if you pull it because there is excessive over travel.
Fermer le verrou avec le percuteur armé (ne pas appuyer sur la détente) et très doucement visser la vis d'engagement (celle à gauche) jusqu'à ce que le percuteur décroche. A ce moment, la dévisser de 1/3 à 1/2 tour. Avec le percuteur au repos, on peut se rendre compte de la course résiduelle en appuyant sur la détente.
Because the back surface of the trigger is NOT undercut, you have to adjust over-travel with the pin "down".
Comme l'arrière de la gâchette n'est pas usiné, il faut ajuster le backlash avec le percuteur au repos.
Now, with the firing pin in the "fired" position, screw in the over-travel screw until it "just touches" the trigger lightly, preventing the trigger from moving... back out the over travel screw 1/4 turn. Pulling the trigger now, (with the pin "down") you should feel just the "slightest" free movement.
Maintenant avec le percuteur au repos, il faut visser la vis de backlash jusqu'à ce qu'elle vienne légèrement toucher la détente et l'empêche de bouger. La dévisser alors de 1/4 de tour. En appuyant alors sur la détente avec le percuteur toujours au repos, on peut sentir le léger mouvement.
Now turn in the spring tension screw (lower right) to a pull that you like... I'd strongly suggest a good trigger pull gauge, instead of guessing.
Maintenant il faut visser la vis du poids de détente (en bas à droite). Il est fortement recommandé d'utiliser un peson plutôt que de faire ça au pif.
Cock the pin and try it... it should break like glass.
Armer le percuteur et essayer. Le départ doit être net (cassant comme du verre).
Check by:
Tester par :
* Slam the bolt closed a dozen times, check to see if the pin dropped each time. If the pin drops, back out the engagement screw 1/4 turn, and do again.
Verrouiller la culasse une douzaine de fois et vérifier à chaque fois que le percuteur n'a pas décroché. S'il décroche, dévisser la vis d'engagement de 1/4 de tour et refaire le test.
* Cock the pin, set the safety, pull the trigger, release the trigger, and release the safety, a dozen times... if the pin drops, increase the spring tension (shouldn't be necessary, unless you're down around 10-15 oz's, and this trigger is not reliable at that light a pull.
Armer le percuteur, mettre la sécurité, appuyer sur la détente, la relâcher, enlever la sécurité. Faire ça une douzaine de fois. Si le percuteur décroche, visser la vis du poids de détente (ça devrait être inutile sauf si la détente a été réglée vers 100-150 grammes car elle n'est pas sûre à ces poids là).
Put white or red nail polish on the screws. Let dry, and put another coat on it again, and again.
Placer du vernis sur les vis. Laisser sécher et remettre une autre couche, encore et encore.
There will be no "take up slack", this is a single stage trigger, and can't be adjusted to act like a two stage.
C'est une détente directe et elle ne peut être réglée comme une détente à bossette.
These triggers are easily capable of going to 24-26 oz's, and they keep the setting year after year, and I've never had to re-adjust one.
Ces détentes peuvent facilement être réglées vers 700 grammes et gardent leurs réglages années après années et je n'ai jamais dû en réajuster une.
Bernard