Encore 7mm-o8

[Reloader]

Welcome to the forums!

You will likely be hitting a few inches high at 100 yards.

My balistics tables say with a 140 grain round at 2860 fps, you Zero at 50 yards and you will get a 150 yard downrange zero. And you are good for a dead on hold for deer out to about 225 yards. Couldn't find anything for a 25 yard marker, but it means your bullet is rising to line of sight much faster and is therefore going on a steeper angle than a 50 yard zero and will be further downrange before it comes back to zero again possibly between 200 and 250 yards but I'm not sure.

You should at least shoot the gun at 50 or 100 yards to get yourself on the balistics charts a little more. And it is always best to practice at the distances you expect to hunt before you are shooting at a deer. Balistics tables and such are good but they can't replace actualy shooting at range. Your gun or load may behave somewhat differently than predicted and the greater the difference in the test shot versus hunting shot, the more the table will be off.

[AJ]

Re: Encore 7mm-o8

Well, do you want the good news or the bad news? Assuming a 140 gr bullet like Reloader James mentioned, here is the

Good news:

You can hold dead on a deer out to about 60 yards.

The bullets arch peaks around 200 yards.

You can hold dead center from 350 yards out to 400 yards.

Bad news:

You are shooting:

5" high at 75 yards

Almost 7" high at 100 yards

9" high at 150 yards

10" high at 200 yards

__________________________________________________

I prefer 2" high at 100 yards and that gives me:

25 = -0.25"

50 = +0.8"

100 = +2"

150 = +2"

200 = +0.5"

250 = -2.5"

300 = -7.0"

[Reloader]

Re: Encore 7mm-o8

The problem with sighting at 25 yards is that any variation off the dead center will be magnified a whole lot as range increases. A 1 inch error at 25 yards is 4 inches at 100 yards. 8 inches at 200 yards...etc.

I may sight in at 25 but then fine tune at 100 to be sure.

[johnf]

Re: Encore 7mm-o8

[ QUOTE ]

Bad news:

You are shooting:

5" high at 75 yards

Almost 7" high at 100 yards

9" high at 150 yards

10" high at 200 yards

__________________________________________________

I prefer 2" high at 100 yards and that gives me:

25 = -0.25"

50 = +0.8"

100 = +2"

150 = +2"

200 = +0.5"

250 = -2.5"

300 = -7.0"

[/ QUOTE ]

Someone told me a few years ago the falicy that if you are dead on at 25yards then you will be on at 100. I wasted $30 in shells trying to get my gun sighted in. At 1" high at 25yards, my 25-06 which is close to the 7mm-08 in balistics was about 6 or 7 inches high, so after using a half a box of shells at 25 yards, I had to use the rest of that box and most of another to get it where I wanted it. Then the rest of the second box to check my pattern.

Advice-don't waste your time with anything closer than 100 yards, and zero in at 2: high.

After sighting a gun through the bore with the naked eye, I can sight them in most of the time at 2" high at 100 yards with about 5-7 shots, then I can check my pattern.

[plannerman]

Re: Encore 7mm-o8

AJ - are the 7-08 numbers listed above also consistent with a 15" Encore barrel?? I'm assuming it would be very close.

Thanks.

[AJ]

Re: Encore 7mm-o8

[ QUOTE ]

AJ - are the 7-08 numbers listed above also consistent with a 15" Encore barrel??

[/ QUOTE ]

Sort of. The 15" barrel will give about a 300 fps drop in velocity vs a 24" rifle barrel. For 140 gr bullet going 2500 fps, sighted 2" high at 100 yards, the numbers are:

25 yards = -0-

50 yards = +1"

100 yards = +2"

150 yards = +1.5"

175 yards = +0.5"

200 yards = -0.8"

225 yards = -2.6"

250 yards = -4.8"

275 yards = -7.6"

300 yards = -11"

[johnf]

Re: Encore 7mm-o8

AJ

I'd like to see the 7mm-08 on the "cartrige of the week" index if you have an article on it.

[AJ]

Re: Encore 7mm-o8

I'll add it to the list. It will be a while, but hopefully before Christmas.

[Guest Xen]

Re: Encore 7mm-o8

with a rifle, i always use the 2" high @ 100 yard method. I've never taken a shot on the rifle hunt that was less than 100 yards, and that was after i hit the deer at 200 yards and he turned and ran towards me. i'm a believer in sighting a gun in at the range i'll most likeley be shooting.