doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com BRNO/ maybe FEG Boxlock

Brno


FN

I would have thought the pin configuration to be similar but alas not.

Kind Regards,

Raimey
rse

I picked the gun up this morning. It is a Feg of course instead of a Brno, although the maker's name appears nowhere on the visible part of the gun upon dis-assembly. The only name on it is Monte Carlo Imperial on both sides of the frame. It still has the removable ejector box which is pretty nifty.

It is dated 62. Other marks on the barrel flats include 17.6 and 18 which I presume are either barrel weights or bore diameters? It is stamped "NO BULLET" which denotes choke I'd guess, and "SMOKELESS POWDER". There is a 12 over 70 inside a diamond showing gauge and chamber length. The barrel flats also have the numbers 1605 and 23526 on the left and right respectively.

I was surprised at the lack of country origin, but the barrel flats do show the Hungarian "helmet with an I inside it" proof mark.There are no marks on the action flats other than the serial number and "smokeless powder".

Any idea what the bolsters under the fences are for? There are screws on the action flat which appear to go into the bolsters...Geo

18mm converts to .709" & 17.6mm converts to .693". While it is customary to find the bore diameter stamped on the bbls or flats these sure sound as if they could very well be denoting choke size. based on the "Standard" 12 ga size of .729" (18.5mm) this would give constrictions of .020" right & .036" Left. If the bores are non-standard of course actual constrictions would vary accordingly.

Thanks Miller, I can never figure out the math. They do sound like chokes don't they...Geo

2-piper cleared up the choke numbers. What are the other two numbers? And what about the bolsters; style or function?....Geo

It must have been for export with the No Bullet, which denotes the exclusion of ball ammo not slug.

Not for Ball
Non Pour Balle
Nem Golyonak
Jen Pro Broky
Nicht F�r Kugel

Also the FN stamp for Fust Nelkuli has been replaced by the Smokeless term, possibly also noting export

Into on the Hungarian proof facility is sketchy at best. But what they did try to convey thru marks was:

Nem Golyonak - Not for Ball noting constriction

Proof number / year

Tubeset weight in grams

Bore diameter measurement taken between 15 - 22 cm from breech

These should always be present & it would seem that there are slight variation depending on the time period & reproof or not. Also having different constriction in each tube may produce a variation.



Red encircled - Nominal bore data - measure right tube at muzzle to compare vs. 18mm

Green encircled - Constriction measurement

Blue encircled - weight of tubeset

Yellow encircled - sequential proof number for the year over year

I'd say the circular or radius of metal was left for side frame reinforcement and may overcome some internal removal of metal. Now the screw, I'm assuming you are referring to the one adjacent to the cocking or loaded indicator?

Kind Regards,

Raimey
rse

For some reason, the position of the red encircled 18 being on the underside of the right tube, is most times a whole number. I'm curious for the case of a whole number if the tube is the same diameter for its length.

Kind Regards,

Raimey
rse

I shot a blue winged teal with it this morning. Everything else this morning was woodies which are not yet in season. Killed him on the 2nd shot pretty far out so at least I know both barrels work and that there is some pretty good choke in the left barrel.

Raimey, are you saying that the red circled number 18 is not a choke designation, but the barrel diameter which would be .709"? That is mighty tight for a 12ga isn't it?

I don't have anything to measure with but a drop in choke gauge which presumes a .729 nominal barrel diameter. It shows chokes of Mod and Full. I know both barrels have choke because I can feel it when I push a cleaning patch through them...Geo

Not sure. Very odd that the position place holder is an integer number? I could be choke but the jury is still out. Yeah I see that 18.5 is more inline with the 0.729" number & would make it 8 thou smaller. What about the weight of the tubeset?

Kind Regards,

Raimey
rse

Haven't weighed the tube-set Raimey(we gave the baby scale away years ago), but the barrels are chrome lined and don't appear to have been honed or the chokes messed with. I'm pretty sure they are as new..Geo