12 replies [Last post]
Offline
Location: Seattle, WA
Joined: 07/27/2005
Posts: 82
Is it possible?

Took my new 7mm weatherby Mag out scouting last weekend.
I bought it had them mount my scope on it 9it already had w-rings.
All they did was bore sight it. I took it out and it seemed pretty darn accurate (hit a pie plate at 100yards 3 times in a row). Next shot was at a coyote from about 120 yards-nailed it in the head, aimed at the front quarter. Blew it's friggin noggin off with 140 grain NP. Next shot was at a coyote trtting at about 100 yards, killed it instantly with a shot to the shoulder. I still havent taken this gun to the range-but could it be that close with just a bore sight? Well, looks like my work will be a bit easier when I do go to the range.

Offline
Moderator
Location: Wa.
Joined: 03/31/2004
Posts: 1300
Is it possible?

It is best to know that your bullet will hit where you point the rifle.
Go to or set up a range. Shoot at 100 yards with a sighting target. You want the bullet to hit center on the target (left to right) and dead on to 2" high.
Don't go figuring it's close enough.
!40 gr is a good choice. 150 gr would be a better all around. 160 gr even better.

Offline
Location: Seattle, WA
Joined: 07/27/2005
Posts: 82
Is it possible?

Thanks Fuzzy_ Of course I will go the range!.I just brought the gun along cuz it was new and I wanted to get the feel of it. I never attempt to sight my rifles in out in the wilds...at least not for deer and elk. We were dove hunting/deer scouting. The coyotes were just in the wrong place at the wrong time. I will go the range and sight that puppy in about 1.5" high at 100 yards (should give me a 200 YD zero) Yeah, the shop I went to only had 140GR NP's. I was really wanting 150 GR NP's. Man, after lookin at what those rounds did to those song dogs-it reminded me of my 300 win mag days. What a joy the 7mm wm was to shoot though! The gun is long and heavy enough that it kicks about the same as my light weight 270WSM...it wasnt a sharp kicker at all. Sure glad I went with the weatherby. I will start reloading.

Offline
Location: NONYA,thats in MONTANA
Joined: 07/22/2005
Posts: 242
Is it possible?

I boresighted my 30-06 last time i rescoped it and it was within 1" of where I wanted it on the first shot so i would say very possible! Thumbs up

Offline
Location: Alabama
Joined: 08/25/2003
Posts: 634
Is it possible?

It's most certainly possible but the objective of boresighting( as described to me the first time I had mine done) is to get the bullet within a circle that is 1ft across or a 6in radius from dead 0. A good gunsmith can get very close but like fuzzy said always go to the range final zero it in.

Offline
Moderator
Location: Nova Scotia
Joined: 08/17/2002
Posts: 1762
Is it possible?

I went to the range yesterday to sight in a rifle that I took the scope off of. I put the scope back on and bore-sighted it again which indicated that it was close. When I fired my first two shots I found that it was hitting 3" to the left and 2.5" low. This would have killed just about any game the rifle was intended to shoot at but was far from what I wanted. After clicking 12 to the right and 14 clicks up, I was where I needed to be... dead on side to side and 1" high at 100 yds. After I took another three shot group and was happy with the result I decided to adjust it another 4 clicks up for a 2" high at 100 yds which gives me a point blank range out to about 300 yds which is the max I like to shoot at game. After another 3 shots to confirm I now I know where my rifle is going to shoot out to 300 yds and beyond (if I wanted to). Before, the rifle was just fine to shoot at any game under 100 yds but where would it hit at 200... 250... 300 yds? Who knows! Any game you shoot at deserves the respect for you to go to the range and know where your rifle is hitting.

Offline
Location: Utah
Joined: 03/03/2005
Posts: 383
Is it possible?

Since no-one hunts with a warm or hot barrel:

After sighting in any rifle at the range, I always go back on another day to ensure the placement of the 1st shot is exactly where I want it from a COLD barrel. Warm or hot barrels tend to raise the POI by a couple of inches at 100 yards.

Offline
Moderator
Location: Nova Scotia
Joined: 08/17/2002
Posts: 1762
Is it possible?

I agree that POI is changed a little by a warm barrel as compared to a cold barrel but I never allow my barrel to get that warm. When I do a sighting in I will have other rifles with me so I can allow enough time between shots to cool the barrels off. This is especially important with my 300 RUM(the one I re-mounted the scope on). What I failed to mention in the above post was how long I was actually at the range (3 hrs) and that I shot a total of over 100 rds (.220 swift, 308 win, 303 brit., 30-06, and 300rum). I find POI shifts more between a clean barrel as opposed to a barrel with one or two shots through it. I only see the best accuracy after one or two shots.

Offline
Location: Missouri/Arkansas
Joined: 08/21/2003
Posts: 891
Is it possible?

I've noticed that cartridges with moderate velocities continue to deliver their best accuracy longer than with very high-velocity ones I'ved used.

Offline
Location: Seattle, WA
Joined: 07/27/2005
Posts: 82
Is it possible?

That's very interesting capn obvious. I have found just the opposite in my experience. So far, my most accurate & consistant groups have come from two high velocity rounds. The 300 win mag in a win model 70 classic sporter with the BOSS system and a 270 WSM in a mod 70 super shadow. I also had a 338WM in a win model 70 classic sporter that was right in there. Now, the verdict is still out on my new 7mm Weatherby Mag Euromark. However, with it just having only been boresighted, taken to the field and dispatching two song dogs, I am tickled so far. I hope it's a sign of things to come. I intend to take it out to the range to be dialed in this week. Moreover, I was pleasantly surprised by the way it feels to shoot. Well balanced, velvety recoil (not sharp) and weight. Of course, when I look back on all the guns I have owned (shot) I have to conclude that recoil haas never seemed to be an issue for me (don't know why). My only guess is that shooting sooooo much shotgun over the years has de-sensitized me to recoil. I shot thousands of 12 GA rounds before I ever picked up a high powered rifle. From skies black-with ducks and doves, literally sooting a couple boxes of ammo in short-order, to sporting clays, skeet and upland bird hunting, my cheek, shoulders and head have been conditioned. I think the combinaation of shooting alot and developing technique have been the major contributors to how I perceive recoil. Which I will theorize, right or wrong, is why you have seen better results with lower velocity rounds. I took my father in-law to shoot sporting clays last summer and he hadnt shot a scatter gun in 20 years. We shot a 10 station, 5 shot each sporting clays course, and the next day he had to actually go see a doctor. I have never seen anything like it. His shoulder looked like hamburger!. He was shooting a 16 GA double barrel. My son and I were shooting 12 GA Over/unders. My son's shoulder was sore, I couldnt even tell I'd ever shot the shotgun. Same thing at the range, when I take my son he doesnt like to shoot my high velocity guns that I so dearly love. Now my older brother, he's exactly like me with recoil, no problem. The only high powered rifle I have ever found unpleasant to shoot was a 7mm Rem Mag in Sako Finn Bear a friend of mine owned. And that was (is) consensus to this day with my brother, my friend and myself. He sold that dang gun in the off season. It had a sharp bite to it. I think maybe another thing that I can cite is that the model 70 design distributed felt recoil well. But then, so does the weatherby Mark V Euromark with its' gorgeous satin finished walnut monte carlo stock and 26" barrell.

Offline
Location: Missouri/Arkansas
Joined: 08/21/2003
Posts: 891
Is it possible?

What I meant was, the high-velocity rounds seem to foul the barrels more quickly. You get more powder and copper residue collecting on the rifling at a faster rate.