Brno no1

DGY

DGY

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Good day all, just received a Brno no1 from an other CGNer and it is missing the rear sight but have a Williams aperture receiver sight mounted! The riffle is in really good conditions especially the metal! So with the aperture sight the past owner told me that it shot quite high and would need a taller front sight…

So you guys see where I’m going with this…. I need to find a taller front sight and I would like to find an original rear sight as well!! Is it something possible?

Also the release for the magasin is really stiff and it easy to free the magazine, is it because it isn’t the original mag or they are just stiff, is there anything to do to make it release more easily?

Lots of questions, hope some one here can help!!
All the best!
 
Have you tried G96?
- if the gun wasn't use much, dried grease might be stuck in there

For the rear sight, ebay or gunshows
PB210096_3fcc1fed-f5d8-4d21-b6e2-cdc1483b2271.JPG
 
The mag should be very easy and smooth - about same pressure as clicking a pen (and i used that spring when i made my magwell).

You can try a sight blank or add jbweld to the top of it. You could also set it up for 6oclock holds instead of on center. I assume the rear sight can't be lowered?
 
Well definitely not has easy as a pen… so maybe cleaning it will help…
The rear aperture sight is at the lowest so it need to be higher at the front so I might try JBweld or brazing ! I did t try the rifle yet, but with open sight I usually do a 6 o’clock hold so will see how t’she shoot that way!
Thanks

Jahnj0584 said:
The mag should be very easy and smooth - about same pressure as clicking a pen (and i used that spring when i made my magwell).

You can try a sight blank or add jbweld to the top of it. You could also set it up for 6oclock holds instead of on center. I assume the rear sight can't be lowered?
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I put a williams peep on a winchester 9422.
Same as you it needed a taller front site.
It seems to me I found a formula to calculate the front site increase and ordered the correct height from Williams. Allowing me to keep the original in original condition.
I haven’t back tracked to where I found the formula but I think it was on the Williams web site. If not there a call to them may direct you in the right direction. I do remember that the calculation worked. Shouldn’t take you too long to find. Easier than playing with the original site and I wanted the original site untouched. Hope this helps.
 
niacbob said:
I put a williams peep on a winchester 9422.
Same as you it needed a taller front site.
It seems to me I found a formula to calculate the front site increase and ordered the correct height from Williams. Allowing me to keep the original in original condition.
I haven’t back tracked to where I found the formula but I think it was on the Williams web site. If not there a call to them may direct you in the right direction. I do remember that the calculation worked. Shouldn’t take you too long to find. Easier than playing with the original site and I wanted the original site untouched. Hope this helps.
Click to expand...

It's just trig. If you know how far off you are, convert to MOA and then you figure it out over the distance between your two sights. A minute is 1/60th of a Degree.
 
The problem and I will have to check first, I doubt Williams have front sites for the Brno no1…. It i will have a look! Thanks
 
If it's the original front sight, it may be the style with the little release button and the insert slides out, if so, they are quite simple, I've made a few of them just using files and a vice. Just figure out how much taller you need and make it. If you are searching for a rear sight keep in mind that the model 1's and the later model 5's had the same style but a different dovetail width. In other words, just because it's a Brno, 3 leaf sight, doesn't mean it will fit.
 
I posted my sight formula a number of years back. I'll add it here if it helps anyone again.

POI - POA

M = S x D ÷ ( R x 12 )

Where:

M = amount of movement or change in sight height needed (in INCHES)
D = distance needed to move the bullet's strike to hit point of aim
R = range to target (in FEET)
S = distance between front edge of rear sight and rear edge of front sight blade (sight radius in INCHES)

Example:

Your sight radius is 5.7 inches and you need to move the bullet's strike 3 inches lower at 25 yards (75 feet):

M = 5.7 x 3 ÷ ( 75 x 12 ) = .019

Thus you need to raise the front sight (or lower rear sight) by .019 inches.

Good luck.
 
easy said:
I posted my sight formula a number of years back. I'll add it here if it helps anyone again.

POI - POA

M = S x D ÷ ( R x 12 )

Where:

M = amount of movement or change in sight height needed (in INCHES)
D = distance needed to move the bullet's strike to hit point of aim
R = range to target (in FEET)
S = distance between front edge of rear sight and rear edge of front sight blade (sight radius in INCHES)

Example:

Your sight radius is 5.7 inches and you need to move the bullet's strike 3 inches lower at 25 yards (75 feet):

M = 5.7 x 3 ÷ ( 75 x 12 ) = .019

Thus you need to raise the front sight (or lower rear sight) by .019 inches.

Good luck.
Click to expand...
That is awesome thank you for taking the time!!
 
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