On a CZ 375 H and H I want to hunt with the three leaf express sights so what weight of bullet would I have to shoot to be accurate at the different yardages ?

There is no way to be sure that those sights are regulated to any particular load; you'd have to check with CZ.
FWIW, the .375H&H is most often used with 300gr. bullets in Africa.

George

I would hope that CZ themselves would be able to advise. And that the three sights are not just put on because they look good!

You should be able to work out from ballistic tables of cartridges how much above the point of aim your point of impact will be for each leaf using a target at, say, thirty-three yards.

This is easier now that we have computers that can draw the trajectory of your chosen bullet.

......Or you could get a bunch of ammo and go shoot all the sights and see where they all hit ...Sometimes it works that certain practice loads will group in the same area as the hunting ammo by turning up a leaf .....On my 458 LOTT my practice load using a 350 gr plated bullet @ around 2200 fps groups with the factory 500 gr ammo by turning up the 300 yd leaf ...I have never had a leaf turn up when I didn,t want it to ..

I e-mail CZof America and today they replied with this comment. I suggest you experiment with different loads. That tickled me, what do they do put the sights on and never see where it shoots on the three different ranges ? Or am I missing something here ?

quote:

Originally posted by billm:
I e-mail CZof America and today they replied with this comment. I suggest you experiment with different loads. That tickled me, what do they do put the sights on and never see where it shoots on the three different ranges ? Or am I missing something here ?

You're definitely missing something. No major manufacturer I know of sights in rifles, and it's ludicrous to think they do.

How could they POSSIBLY know which bullet weight or powder charge you might use, or the altitude or temperatures in your area, or how the gun fits you, or how you shoot?

George

George I understand what your saying but I would think that when they put the express sights on there would be a rule of thumb that they would use. Not trying to get any body upset but If I built something I would have a idea of what its capability was , Bill

Every friggin rifle is different. There is no way for CZ, or anyone else, to answer that question.

Go shoot it and find out.

I like my CZ 550.The only problem was the feeding.Last time I spoke to the gunsmith he said that he almost got it to feed and that it's going to need a little machining.I hope it feeds well.The rifle balances well and it shot dead on at 100yds with the 200yd sights.It is really accurate and when it did feed it did so quick.It also loads easily and holds alot in the mag.It's a cool looking rifle.If the feeding issue is solved I might buy one in 458 Lott.

quote:

Every friggin rifle is different. There is no way for CZ, or anyone else, to answer that question.

I absolutely disagree. They should KNOW for what bullet weight it is sighted FOR and at what approximate velocity.

Just as we all know that any British SMLE or No4 is sighted for a 174 grain bullet at 2460 fps and that any M1 Garand is sighted for a 150 grain at XXXX fps (which as I'm British I don't know).

So that if I do the fine adjustment, by changing the foresight height, with my Lee Enfield No4 at 100 yards I will know that it will shoot to the point of aim given on the sights at 200, 300, 400, etc., etc.

............Enfield Spares,.it was pretty obvious from your reply that you were from some where like Massachusits.,.,it hard not calling that place massatwoshits'''' ... Anyway your from England ., makes sense ...,.,Imagine ,., dumb ole gumboot and the CZ company said basically the same thing .......Why the ---- can,t people just go shoot their rifles .,.,Every CZ 550 that I have handled ,, and ZKK602,s for that matter have stamped on the 2 folding leaves 200 and 300 ...Boy , I thot people bought guns cause they like to shoot ??/Heres what I bet,,, the 270 gr load will shoot higher than the 300 gr load and @ 300 yrds a 300 gr spitzer will shoot higher than the round nose solid ...You have a real , logical reason to go shooting ...Thats the kind of logic you can convince your wife with... just imagine all the different factory ammo you HAVE to shoot so you know the drop of your bullets ...Reloads too ...............mrlexma,, no offense ment .,.,I lived there for a number of years ....

And every No4 I've ever handled has sights marked 200, 300, 400 etc. And guess what? It is set to give that aim with a 174 grain bullet. Not a 150 grain bullet or a 215 grain bullet but a 174 grain.

That's all the guy is asking. Are the sights just standard across the whole range so that they look like "express sights"...but are actually just pretty useless?

Or are they actually made so that with, say a bullet of X weight if it is "on" at 200 it will also be "on" at 300 once the owner has adjusted the zero by changing his front sight.

So why give the guy grief? All he wants to know is, when the rifle was loaded in the .375 H & H for which bullet weight they are nominally graduated?

Or are the sights just dressing, and of no use at all?

I have just spoken to the CZ importers for the UK. They tell me that the rifles are shot at the factory and the foresight changed (look underneath...you will see a number) so as to "regulate" the sights to the loading, and bullet weight, shown on your target card.

Just, maybe, lazy poor customer service...or someone who is "too busy" at CZ-USA to bother to do therir job properly and learn about the product they sell...UK importer could not have been more helpful.

So the answer is look at the target that came with the gun!

.......But have you taken the individual rifles out and made sure that is where they shoot.....,.,I do appreciate the info as to the factory regulation as I have changed around foresights on my CZ,s and was thinking there must be a factory reason for the different sight heights .....,.,.,.,.,I guess it,s just a cultural difference .....