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-   -   Std BB trigger pull weight? ... Adjust Trigger Pull? Factory Service Manual Excerpt (https://www.rimfirecentral.com/forums/showthread.php?t=245937)

toivo 11-13-2008 10:48 AM

Standard BB trigger pull weight?
 
Does anybody have a figure on trigger pull weight for an out-of-the-box Biathlon Basic?

I'm really comfortable with my BB trigger just the way it came,
and I'm thinking about getting my Sako Quad trigger worked on
to be as close as possible to the BB.

aom22 11-13-2008 11:12 AM

Biathlon Rifle Triggers
 
Quote:

Originally Posted by toivo (Post 2074635)
Does anybody have a figure on trigger pull weight for an out-of-the-box Biathlon Basic?

The following threads will get you started:
BI 7-2 Trigger Modification & Stage 3 - Trigger Mechanism Adjustments and Modifications
BB Trigger Stop Anybody & Trigger Adjustment
Biathlon Basic Trigger Adustments ... Trigger Modifications for Unadjustable Triggers
improvements/ modifications to the BB mechanics

Trigger Illustrations - midwest swiss
Quote:

A few trigger pic.
http://i84.photobucket.com/albums/k2...BBtrigger3.jpg

http://i84.photobucket.com/albums/k2...BBtrigger5.jpg

http://i84.photobucket.com/albums/k2...BBtrigger2.jpg

Just thought I might like some of those trigger options installed on my
BB. Be care-full if you work on your trigger.
Midwest Swiss

AzizaVFR 11-13-2008 04:08 PM

When I received mine,
I checked it with my RCBS trigger pull scale.

It was consistently breaking at 2.5lbs.

After taking it apart, I
removed almost all of the first stage,
and it now breaks right at 17.5oz.

toivo 11-13-2008 05:20 PM

Quote:

Originally Posted by AzizaVFR (Post 2074900)
When I received mine,
I checked it with my RCBS trigger pull scale.

It was consistently breaking at 2.5lbs.

OK--I can get that from my Quad just by the adjustments,
without trigger work.
Good to know. Thanks.

Thanks to AOM too--I'm not going to work on the BB trigger just yet.
I'm pretty satisfied with the way it is.
But I might get there someday.

aom22 11-15-2008 11:20 PM

BI-7-3 (BI-7-2) & BI-7-4 Trigger Illustrations
 
DOUBLE CLICK IMAGES FOR LARGER VIEW
Illustrations of BI-7-3 (BI-7-2) & BI-7-4 Triggers (Excerpted from Service Manual)
http://i84.photobucket.com/albums/k2...ggers002-1.jpg

http://i84.photobucket.com/albums/k2...ggers003-1.jpg

BI-7-4 Trigger Adjustment (Excerpted from Service Manual)
http://i84.photobucket.com/albums/k2...tment002-1.jpg

aom22 11-16-2008 01:14 AM

Biathlon Basic Trigger Pull
 
Quote:

Originally Posted by toivo (Post 2074635)
Does anybody have a figure on trigger pull weight for an out-of-the-box Biathlon Basic?....

BI-7-2KO hunting rifle
Quote:

Trigger pull, adjustable, N (kgf), within 4.9..9.8 (0.5..1.0)

(Factory Claim: Approximately 1.10 ft/lbs to 2.20 ft/lbs)
EAA’s Biathlon Basic .22
Accurate Out-of-the-Box

by Scott Smith
Quote:

Overall the EAA Biathlon Basic is a well-made rifle.
The fit and finish of the rifle is good,

trigger pull is about two to three pounds-crisp, and no creep.

This is a solid, well-built rifle-no frills, no bells or whistles; just a good rifle.
The Biathlon Basic is Back!
Now from Russian American Armory

by Jeff Quinn
Quote:

Now we come to the most impressive part,
to me at least, of the rifle; that wonderful trigger!

The trigger pull on the sample rifle measured just
one pound and six ounces on my digital trigger pull gauge.


The pull has about an eighth inch of take-up
and then a perfectly crisp feel as the sear is released.

It is absolutely the best trigger pull that
I have ever found on a rimfire rifle, at any price.



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