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PH-5A is in error by 17% for its range settings?

Printed From: Enfield-Rifles.com
Category: Enfields
Forum Name: Enfield Accessories
Forum Description: Slings, Bandoleers and any other Accessories for the Enfields
URL: http://www.enfield-rifles.com/forum_posts.asp?TID=8567
Printed Date: January 18 2018 at 11:19pm
Software Version: Web Wiz Forums 11.05 - http://www.webwizforums.com


Topic: PH-5A is in error by 17% for its range settings?
Posted By: Shamu
Subject: PH-5A is in error by 17% for its range settings?
Date Posted: September 28 2017 at 1:44pm
News to me but I just read that any PH-5 fitted to an SMLE is 1/6ths off for distance. Supposedly the reason is they were calibrated for a Long Lee so there's a velocity difference & a sight radius difference that combined mean you need to use  6 clicks to get the effect of 5 on the range scale.
Any observations or thoughts?
Confused
Its an early 5A with the 1/2 MOA clicks BTW.


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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)



Replies:
Posted By: evanguy
Date Posted: September 28 2017 at 3:05pm
Ohh ok so it is one of the 1/2 moa units not the PH minutes sight, so that ideas out.

I have the exact same sight as you, now i want to check if its the same with mine.


Posted By: Canuck
Date Posted: September 28 2017 at 3:11pm
I read the exact same article a couple days ago.

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Castles made of sand slip into the sea.....eventually


Posted By: Shamu
Date Posted: September 29 2017 at 6:16am
Suddenly, out of the blue there's this Revelation that no-one ever heard of before!
Hmmmm?


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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)


Posted By: Zed
Date Posted: September 29 2017 at 11:12am
It would also be for original ammo so probably irrelevant for your reloads anyway!

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It's nice to be important, but it's more important to be nice!


Posted By: Shamu
Date Posted: September 29 2017 at 2:21pm
Yes, I usually run 150 Gr at about 2550 FPS, so its more a curiosity than anything.


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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)



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