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Bold trigger adjustment
Discussions related to Guns and Firearms

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Super Member
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Joined: Jun 27, 2009
Posts: 3311
Location: Eugene, Oregon

PostPosted: Thu Feb 25, 2010 7:26 am    Post subject: Bold trigger adjustment Reply with quote

Anybody know how to adjust a Bold trigger? I could give it the trial and error route but I thought someone on here might be a hero and give a girl a hand. Funny how it's advertised as adjustable but they don't give you any instructions/warnings on adjustments. I also had to shim it to get it to level and I wonder about that also. To avoid the shim I would have to elongate the pin holes and then I wouldn't be able to tighten it down. It works with the shim but I wonder how much the sear engagement is affected.
On a side note, my job sux right now, we're only working 3 days a week and I have to come up with really intelligent questions for you guys to keep me busy. My secret shooting range is posted with saftey zone signs, no shooting and I've done all the yard work, maybe I should paint the inside of the house? I hate painting. There is such a thing as tooooo much time off. Well it limits your spending money ya know. I'm gonna make a new rifle bench rest clampy thingy today....maybe put some rum in my coffee....or maybe some coffee in my rum. It's 6:30am I better get started, it works best with my anti arrhythmia meds. (not really) jest spewin..


May the moon keep you centered,
May the sun keep you dancing,
And the stars shed light on your dreams.
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Joined: Jan 16, 2006
Posts: 1108
Location: Lehigh Township, Pennsylvania

PostPosted: Thu Feb 25, 2010 9:39 am    Post subject: Re: Bold trigger adjustment Reply with quote

I'm not familiar with that trigger, but I was able to find this article and hopefully it will help.
Bold Trigger tune – up

Trying to find an aftermarket light weight target trigger for a M96 small ring Mauser can be very frustrating as most high quality light pull weight target triggers on the market are for M98 large ring Mausers. I am constantly fine tuning my custom built Swedish M96 small ring Mauser chambered in 6.5x55 Ackley Improved 40 degree shoulder, this is a bench rifle so a very light trigger pull weight is favorable. A Bold trigger was chosen for this project, they are of very good quality, very adjustable and proved to be quite easy to fine tune. My goal is to tune this trigger down to 1lb of pull weight and have it perform just as good as triggers costing three times as much!

Bold Triggers can be purchased for around $40.00 (retail); they are made to fit various rifle manufactures for a drop in replacement fit and are adjustable for creep, over travel, sear engagement and pull weight. The factory minimum pull on these triggers is 2.7lb which is quite heavy for precise target or varmint work, keeping all the needed safety functions will be of high importance for this project target trigger. I will explain what I did to modify a Bold Premier Trigger model # OP – 94/96 with out side safety, available from Boyd Gunstock Industries, Inc. 25376 403rd Ave Mitchell, SD 57301 phone (605) 996-5011 fax (605) 996-9878. Remember this modification will void any manufacture warranty! And your firearm must be unloaded at all times during tuning the trigger.

Modifying trigger pull weight;
Make certain the firearm is unloaded and remove the action from the stock. Follow the instructions included with the new Bold trigger for your specific firearm application; after trigger is installed on the action proceed with the following tuning process.
First remove the front upper Allen screw (this is the creep and pull weight spring tension); I found this spring on my test trigger to have a slight burr on one end. Slip the spring over a small round screwdriver shaft so that the spring will spin freely. Very gently run the spring cross way on your bench grinder to reduce the outside diameter of the spring (reducing tension weight of the spring). This will be done in small amounts go slow and go by feel; a pass across a wire wheel will smooth out the roughness on the spring. Lightly lube the now reduced weight spring with a good lubricant - I use CLP by Break Free, part # 915-372 available at Midway USA 5875 West Van Horn Tavern Rd. Columbia, MO 65203 phone (800) 243-3220., reinstall spring, Allen screw and lock nut. Check pull weight with a trigger pull gauge and adjust screw tension (take several pull readings then average them), if pull is still too heavy clip ½ coil of spring from an end and retry pull weight. I found a 1lb pull weight quite easy to obtain and locked in on that setting. I also found this spring was the only one I needed to modify to reduce tension weight of the trigger pull. All other springs associated with this trigger need only adjusting to fine tune.

Adjusting trigger overtravel;
Now for the adjustments on the overtravel screw (this is the front lower screw) with the bolt locked in battery turn the screw in until the trigger is solid and will not move. Keeping light pressure on the trigger and turn out the screw until the trigger moves enough to release the sear, and then turn the screw out just slightly more to provide adequate clearance, tighten lock nut to hold screw position. This setting will prevent any added rearward movement from the trigger that could throw off the shot.

Adjusting sear engagement;
On the rear of the trigger is a very small Allen screw that will adjust sear engagement turning this screw out will increase sear engagement. Again with the bolt locked in battery turn this screw out until the bolt will not lift to open out of battery, turn this screw in until bolt unlocks – then turn in slightly more. With the sear engagement adjusted in this manner you end up with more engagement than was set at the factory. I felt the added sear engagement was not a noticeable amount due to the now lighter trigger pull; you can adjust for less sear engagement if slam fires are not an issue. Now with the bolt closed in battery and safety off rap action with a rubber or nylon mallet to try and trip “release” the trigger, also open and close the bolt with a quick hard stroke several times. If the trigger holds and will not trip you are all set, otherwise turn in pull weight screw (front upper allen screw) to increase trigger pressure slightly and retry. Apply a small amount of thread locking agent to the adjustment screws to hold everything tight when you have achieved the desired setting. I like to use “Loc tite #242” available at most hardware stores, this will hold very good and you can remove the screws with hand tools at a later time if you need.

I installed my Bold Premier trigger on a custom M96 small ring Mauser and tested it extensively at the range; Pull weight was fantastic at 1lb with that breaking glass feel, overtravel was set to prevent any excessive trigger jerk. Safety was of major importance and was never an issue. A finely tuned trigger will only complement an accurate rifle, keeping in mind the rifle is tuned in other areas of accuracy as well and the shooter does his/her part correctly. So with a little time and tinkering a budget $40.00 trigger can perform like a winner. I understand this will not be for everyone to want to try, but with the economy today and just the fact you are reading this article will show you the cost savings of tuning a budget trigger to be a performer. This will mean profits in your pocket and you will have a satisfied customer too! Be careful, proceed slowly and excellent results can be achieved.

This link to a thread on adjusting a Bold trigger on Mauser Central Forums may also help out.

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Joined: Jun 27, 2009
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Location: Eugene, Oregon

PostPosted: Thu Feb 25, 2010 3:22 pm    Post subject: Re: Bold trigger adjustment Reply with quote

B..B..B.. BigBlue thank you! I knew I'd seen that article before, but couldn't find it. Just needed to know which screw went to which adjustment. They don't actually give you that when you buy one. I like the adjustment as it comes from the factory really, but if you can adjust the sear ingagement that's a plus. I wanna make sure it's got bite-o-plenty. Well..may the moon the sun and the stars...but not the snow?


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May the sun keep you dancing,
And the stars shed light on your dreams.
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Joined: Nov 03, 2009
Posts: 2195
Location: B., Belgium

PostPosted: Fri Feb 26, 2010 3:24 am    Post subject: Re: Bold trigger adjustment Reply with quote

Suz, can you give an honnest opinion on this Bold trigger when you've tested it? I had a sleepless night with this thread wondering why Bold is so cheap compared to Timney etc. Is there a big difference in quality?
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PostPosted: Fri Feb 26, 2010 10:57 am    Post subject: Re: Bold trigger adjustment Reply with quote

Aloysius!! My opinion can only be based on the difference between a military Mauser trigger and the Bold trigger because I've never used a Timney or any other adjustable trigger. From what I've read, the Bold trigger is more or less an imitation of the Timney and it appears to do the same things. I bought it because it was inexpensive, adjustable and a world away from the 2 stage. I have a Savage 110 rifle with a wonderfully crisp trigger ( and it's not the Accu-trigger), and I'm trying to adjust the Bold trigger to be similar in pull weight. All ladies love their Savages! But anyway to answer your question, I don't know the differences. I really like the trigger and the installation was easy.

sorry forgot to shave today
Suie Suz

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May the sun keep you dancing,
And the stars shed light on your dreams.
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PostPosted: Fri Feb 26, 2010 9:11 pm    Post subject: Re: Bold trigger adjustment Reply with quote

I thought that was a little 5:00 shadow I saw there....

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LIBERTY A well armed sheep contesting the outcome of the vote...
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Location: Brisbane AUSTRALIA

PostPosted: Fri Feb 26, 2010 11:27 pm    Post subject: Re: Bold trigger adjustment Reply with quote

I must admit, when I first saw this post my initial thought was...a bold adjust on a a bold adjust on the sights when you are first zeroing your rifle. Embarassed

Now that I know what that Bold is a brand name, I am more understanding of what Suz is doing. I must admit I have never heard of the Bold brand of trigger. Suz, you say it is sort of an imitation of the Timney...I'll be very interested to hear what your final feelings are in regards to this trigger. At the price it is, if it is as good as a Timney, then it is definitely in my sights for fitment to my Weatherby.

Cheers, Vince

Cheers, Vince Cheers

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(Never let the bastards grind you down)

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Joined: Jan 16, 2006
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Location: Lehigh Township, Pennsylvania

PostPosted: Sat Feb 27, 2010 10:07 am    Post subject: Re: Bold trigger adjustment Reply with quote

Bold triggers are a very good deal for Mausers as compared to the cost of the Timney triggers.
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