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Old 12-29-2016, 03:29 PM
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Browning / Miroku BL22 Tuning Kit



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Has anyone tried this kit?

http://sbgwllc.myshopify.com/product...l22-tuning-kit
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Old 12-29-2016, 08:10 PM
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I have a BL-22 and find the trigger very stiff....I'd like to know more about this...not sure on the dissembly of the rifle....suppose I can check numerichs for details...
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Old 12-29-2016, 09:54 PM
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I emailed the company for information. Will report what I find.

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Old 12-29-2016, 10:25 PM
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Springs will help but most need some stone work also.
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Old 12-30-2016, 07:39 AM
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Sicumj, what parts/surfaces need polishing?

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Old 12-30-2016, 12:25 PM
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Slightly stone any surfaces that show uneven wear or ruff surfaces. Specificaly sides of hammer and receiver. I polish hammer spring guide pin and outside surface of sear. BL-22's trigger seperates from the sear every time you work the action. Other than changing spring tension there is not much you can do to the trigger. Do not mess with the sear link.

The engagement between the sear and hammer is where most of the improvement is made IME. At the minimum smooth the engagement surfaces with a hard stone. Doing this along with the spring kits will lighten the trigger pull. I like to use a moly lube on the spring guides and the wear surfaces along the sides of the receiver and hammer. Easy goes it here use a qtip to apply.

Depending on your confidence level you can change the relationship (angle) between the hammer and sear. Out of the box that relationship will be a positive camber between hammer and sear. You can confirm this by cocking the hammer and slowly pulling the trigger. If the hammer moves backward prior to disengegement it has a positive camber. Changing this angle toward a neutral camber will reduce your trigger pull.

Overall a 3 lb trigger is doable. Go slow.
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Old 01-01-2017, 01:05 AM
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Springs are not the problem with the BL-22. As noted above, it is the hammer/sear geometry. I imagine it is that way for safety because of the trigger disengaging with the lever and pushing the sear link back into engagement when the lever is closed.
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Old 01-11-2017, 09:01 PM
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Spring Kit

The spring kit arrived, it has reduced power springs for the sear, trigger, and hammer. I think I have one of trigger springs mixed up with the sear springs in this photo.

While I had it apart, I thought it would be interesting to see how the trigger, sear, and hammer interface with each other.

Now, it is a matter of experimentation to see which springs give the best results.
Attached Images
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File Type: jpg 20170111_203728.jpg (370.2 KB, 214 views)
File Type: jpg 20170111_204203 v2.jpg (417.3 KB, 46 views)
File Type: jpg 20170111_203739.jpg (359.2 KB, 39 views)
File Type: jpg 20170111_203750.jpg (348.7 KB, 37 views)
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Last edited by OldWolf; 07-31-2017 at 04:12 PM.
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Old 01-11-2017, 09:22 PM
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Also, I forgot mention that it looks like the hammer sear notch is blued, or powder coated (whatever the finish is on these). This may be part of the wearing in that is reported to improve BL-22 triggers over time?
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Last edited by OldWolf; 07-31-2017 at 04:15 PM.
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Old 01-12-2017, 11:01 AM
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I bet its going to be fun putting all that back together.
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Old 01-12-2017, 11:37 AM
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OldWolf

Great pics, they will prove very useful.
Keep us posted on your progress.

Rich
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Old 01-12-2017, 01:51 PM
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Quote:
Originally Posted by OldWolf View Post
Also, I forgot mention that it looks like the hammer sear notch is blued, or powder coated (whatever the finish is on these). This may be part of the wearing in that is reported to improve BL-22 triggers over time?
That would explain a lot. Thanks!
Dave
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Old 01-12-2017, 02:51 PM
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Now I am mulling over in my mind whether to do a little polishing.
It would be very minor, just a few contact points with 1200 emery paper.

Sear link to sear contact point would be one spot to polish. Maybe some light swipes to the sear notch too.

Since there is a very light negative camber on the hammer notch, I am considering light usage of 600 paper and a following of 1200 paper. It would be nice to get rid of that camber...
The key is to go slowly and be careful.

I recall that there are few threads here on this topic...I will refer to them...

https://www.rimfirecentral.com/forums...d.php?t=574081
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Last edited by OldWolf; 01-12-2017 at 02:58 PM.
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Old 01-12-2017, 11:10 PM
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Quote:
Originally Posted by OldWolf View Post
It would be nice to get rid of that camber...
The key is to go slowly and be careful.
I wouldn't. That positive sear engagement is there for a reason. Without it, the sear spring and hammer spring are fighting against each other. The heavier hammer spring will win.
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Old 01-13-2017, 05:59 AM
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If im doing it, I'm going to take that positive angle on the HAMMER down to very near zero. The catch is that if you go to far it will be very dangerous! I would not mess with the sear angle because it's depended on for the half cock "safety".

Your pictures make me want to do my trigger! PS I use diamond files on my triggers to keep everything square, paper tends to round things. Just my 2 cents.
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