M48A Accuracy Issues

[Sentryduty]

Based on Patrick's numbers we are looking at a fixed drop rate of 0.22" per 100 fps change @ 100 yds, that really isn't a lot of elevation change versus velocity for sight regulation..

I think to best answer this question we would have to have a bit more specific information about the target and shooting conditions.

How big is the target "black" and where is your point of aim? Are you shooting with a 6 o'clock hold or otherwise? Or more accurately, how far below the point of aim (POA) is the point of impact (POI)?

I believe something could be a little out of sorts with this rifle's sights but it is important to establish the baseline before we work out solutions.

---------- Post added at 09:20 AM ---------- Previous post was at 09:10 AM ----------

Once again, a photo would save reams of speculation. But a photo of the front sight might well reveal that the blade has been seriously filed down, as a fix for the usual high POI of ex-military Mausers. This is commonly done to get the POI into the black with a backsight leaf setting that can be varied to suit different types of ammo.

If the front sight were filed too low would that not raise the point of impact? A tall front sight should adjust POI lower by sighting the muzzle lower than the POA, correct? Been awhile since I tinkered with iron sights.

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[Patrick Chadwick]

if the front sight were filed too low would that not raise the point of impact?

Of course! I made the basic mistake of writing something in a hurry, when I should already have been somewhere else. If the foresight (as I guess) was corrected, it should have been made much TALLER, not shorter?

If that is not the case, then maybe the gun is a bent-barrelled lemon. I hope not.

The point remains valid: different types of ammo won't explain this one away. And a photo would clarify matters.

[mr.tickle]

I think to best answer this question we would have to have a bit more specific information about the target and shooting conditions.

How big is the target "black" and where is your point of aim? Are you shooting with a 6 o'clock hold or otherwise? Or more accurately, how far below the point of aim (POA) is the point of impact (POI)?

I believe something could be a little out of sorts with this rifle's sights but it is important to establish the baseline before we work out solutions.

The target used was an NRA 100 yd high power target.

NRA Official High Power Rifle Targets SR-1 100 Yard Slow Rapid Fire

Target as a whole is 21" x 21" the black is 6 3/8"

I was aiming at the center of the black. The shots were clustered in the bottom 3 inches of the target.

[vintage hunter]

I was aiming at the center of the black. The shots were clustered in the bottom 3 inches of the target.

The bottom 3 inches of the black or the target as a whole?

[mr.tickle]

The bottom 3 inches of the black or the target as a whole?

Target as a whole. I do not have access to the rifle at this moment as soon as I am able to I will post a pic. It was a collectors grade Mitchell's Mausers. So no one had it before me (at least between me and mitchell's)