Mosin Guys... Need a measurement please

[Old Ironsights]

Could someone with a stock 91/30 grab a caliper and give me a front sight post height from center bore?

Thanks.

[wnmGng]

do you want from the center of bore to top of post, or base of post?

[Old Ironsights]

Top of post please. I have 2 globes with different pins heights and would like to start from the OEM "zero" point for a 91/30.

[madsenshooter]

Sounds like someone is having fun. I just put a Russian made diopter sight on the rear sight dovetail of mine. Of course with it being that far forward I got to have a big hole in the eyepiece. I'm up to .190" and just getting the circle within a circle sight picture I want.

[wnmGng]

I'm not sure how to get a measurement from center bore apparently, but my front sight post is around .285" tall. a very rough measurement from center bore is around 1", maybe a hair less. hope this helps.

[Old Ironsights]

I'm not sure how to get a measurement from center bore apparently, but my front sight post is around .285" tall. a very rough measurement from center bore is around 1", maybe a hair less. hope this helps.

1/2 barrel OD at midpoint of sight base, + height of site base to base of pin, + height of pin.

[Old Ironsights]

Sounds like someone is having fun. I just put a Russian made diopter sight on the rear sight dovetail of mine. Of course with it being that far forward I got to have a big hole in the eyepiece. I'm up to .190" and just getting the circle within a circle sight picture I want.

Yeah. I've put a set-screw mounted barrel-band sight base on my chopped 91/30, but the globe I'm using obviously has too short of a pin because I'm hitting 8" high at 150m with the rear sight bottomed out at the 100m notch.

[petroid]

Mine is .595" barrel OD at front of sight base. From bottom of barrel to top of front sight post is 1.195" So .595"/2~.298" 1.195"-.298"=.897"~.9"
I think 0.9" would be a close enough approximation for mine anyway

[wnmGng]

I've got .590" OD and 1.225 from bottom of barrel to top, so I come out with .93" from center

[Old Ironsights]

Thanks guys!

[petroid]

Old Ironsights, you didn't tell us what yours measures...

[Old Ironsights]

Old Ironsights, you didn't tell us what yours measures...

The way mine is set up now, I have a globe with a .285 post on a .339 base .316 from center (.940)

But it shoots High.

My other globe has a .330 post which would bump my sight to .985

Given those numbers, I don't quite get WHY it is shooting so high, but there we are...

[DaveInFloweryBranchGA]

Each Mosin is a law unto itself, that's why. :)

[petroid]

Yeah you'd need to know the rear sight height as well to compare. Just put the taller sight post on and shoot it! Lol. Or put a short section of heat shrink tubing over the existing post to make it taller.

[DaveInFloweryBranchGA]

Yeah you'd need to know the rear sight height as well to compare. Just put the taller sight post on and shoot it! Lol. Or put a short section of heat shrink tubing over the existing post to make it taller.

This is a real good approach to getting a Mosin sighted in. Allows you to find out what's needed and make a change without having to spend any more or alter the rifle. The nice thing is, it's removable.

[LUCKYDAWG13]

mine will do a 2" group at 100 yards just a foot high need to get one of these http://www.smith-sights.com/

[Old Ironsights]

mine will do a 2" group at 100 yards just a foot high need to get one of these http://www.smith-sights.com/

OOOoOOOoooohhhh those are sexy as all get out...