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Hi all,
So I was shooting the MK4 No2 enfield at 100 yards yesterday and POI was really high about 20" (maybe a bit more)

I have a .015 currently fitted.
The largest I have in my box is .075

I was wondering if a .075 blade would bring the POI down enough to be on target?
I have also been doing a bit of digging online and there are a few posts talking about a .090 blade being made but I have not been able to find one for sale. Do any of you know if such a beast exists?
Sorry if this is in the wrong section.
All help appreciate
Regards
John

I can't help with a taller front sight but this might help you calculate the height of front sight post you require, lifted from another forum.I have used this formula to calculate Mosin front sight post heights before now......and it can be surprising how a small change in height can make quite a difference in point of impact.


Calculating Correct Front Sight Height for Zero

Principle

There is a linear relationship linking the distances between:
1. The front and rear sight distance, and
2. The change in height needed for the front sight of the rifle and the actual location of the bullet, above or below the bull’s-eye on the target.

Equation......

A = the distance from the rear sight to the front sight. Units are in inches and approximate.
B = the distance from the barrel of the rifle to the target. Example: 100 yards (3600 inches), 200 yards (7200 inches), etc. Units are in inches.
C = the CHANGE in height required in the front (or rear) sight. Units are in inches.
D = the height ABOVE or BELOW the bull’s-eye of the target. Units are in inches.
Note

1. On a SMLE the distance between rear and front sights is approximately 19.5 inches.
2. On a No4 MkI the distance between rear and front sights is approximately 28.5 inches.
3. On a No5 MkI the distance between rear and front sights is approximately 23.25 inches.
4. On a P-14 the distance between rear and front sights is approximately 37.75 inches.
Actual Relationship

A is to B, as C is to D. Therefore, the formula is as follows:
A/B = C/D
Restated: A x D = B x C or C = (A x D) / B
Examples

1. A SMLE (fitted with a +.045 front sight blade) shoots a 5 shot group 8 inches above the bulls-eye at 100 yards.
C = (A x D) / B. C = (19.5” x 8”) / 3600”. C = 0.043 inches. Therefore, you must INCREASE the front sight height by 0.043 inches.
(+.045 add 0.043 equals +0.088, closest sight +.090)
2. A No4 MkI (fitted with a -.015 front sight blade) shoots a 5 shot group 5 inches above the bulls-eye at 100 yards.
C = (A x D) / B. C = (28.5” x 5”) / 3600”. C = 0.040 inches. Therefore, you must INCREASE the front sight height by 0.040 inches.
(-.015 add 0.040 equals +0.025, closest sight +.030)
3. A No5 MkI (fitted with a +.075 front sight blade) shoots a 5 shot group 5 inches below the bulls-eye at 100 yards.
C = (A x D) / B. C = (23.25” x 6”) / 3600”. C = 0.039 inches. Therefore, you must LOWER the front sight height by 0.039 inches.
(+.075 subtract 0.039 equals 0.036, closest sight +.030)
4.A P-14 (fitted with a +.060 front sight blade) shoots a 5 shot group 6 inches below the bulls-eye at 100-yards.
C = (A x D) / B. C = (31.75” x 6”) / 3600”. C = 0.053 inches. Therefore, you must LOWER the front sight height by 0.053 inches.
(+.060 subtract 0.053 equals 0.007, closest sight .0)
With the proper height of front sight to correctly adjust for elevation zero, it can now be drifted within the dovetail to correct for windage zero and staked in place.
Using surplus MkVII Ball ammunition, keeping in mind that the rear battle sight on these rifles is designed for a 300 yard zero, a correct MPI at 100 yards should be 8 ½ inches (+/- 1 inch) above the point of aim. At 200 yards the MPI would be 4 ¼ inches (+/- ½ inch). If zeroing at 25 yards the MPI should be about 2 inches above the point of aim. If zeroed in this manner it will also ensure that the range adjustable micrometer sight is zeroed as well.
The equation is valid no matter what ammunition is used, however the shooter or handloader will have to figure out his/her own exterior ballistics information to come up with the correct MPI placement at any given range.

Have you seen this link?

https://lee-enfield.org/useful-links/69 ... -of-rifles

Eek!
Thank you, I guess. LOL.
I knew I 'd get an easy answer, only joking. I'll take a look and try to digest this.


Regards
John

Right, I got it.............I think

Hello
I have a +90 but its a solid dovetail.

Hello
I have one
Stamped +090 and with an S inside a square.
I don`t know if there is a difference between the solid and split.

Hi Bill,
Well if someone more experienced than me can tell me if this fits a Lee Enfield MK4 No2 I'll take it please.

graphictart wrote:Hi Bill,
Well if someone more experienced than me can tell me if this fits a Lee Enfield MK4 No2 I'll take it please.

I think you may mean no4 MK2.

Smle's are referred to as no1's these days, but not when they were made.

Sent from my pink toy using "An application"

Yeah,
Dislexia kicking in for a bit there.

So still looking for a Lee Enfield No4 Mk2 +0.090 split base front blade.

(Must be split base)
Apparently sten gun blades fit, you learn something new every day!

All help appreciated
John

ps: Bill, thank you for all your help.