The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles Point of impact for 30-06 at 50 yardsGo | New | Find | Notify | Tools | Reply | |
| Point of impact for 30-06 at 50 yards | Login/Join |
one of us |
I would like to zero in my 30-06. The range I can use is less than 75 yards. So I will be zeroing my rifle at 50 yards. Where should my point of impact be if I want it to be dead center at 150 yards? I use 180gr bullets. Thanks in advance. May God be with you. | ||
|
| One of Us |
if you zero at 50y is crossing zero again at about 150y. http://norma.cc/en/Ammunition-...y/Ballistics/iframe/ | |||
|
One of Us |
I the JBL online program on my PC and have the JBL program loaded on my iPad. Go to the JBL website and use the free online ballistics calculator… http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi Just go online, select your 180gr bullet and key your data into the proper fields, and play with the 50yd setting to get the sighting results you’re desiring. Jim  "Life's hard; it's harder if you're stupid" John Wayne | |||
|
| One of Us |
Make sure that you include height of scope centreline above bore centreline in your calculations. It can make a significant difference at longer ranges when you have zeroed at 50 yds. | |||
|
One of Us |
The specific trajectory can only be determined, precisely, if you tell us at what velocity the 180gn bullets will be sent. And are these 180gn loads factory ammo or handloads? Identifying the make of rifle and barrel-length might help, if someone here has the same rifle and has vetted the same load. Given the commonality of the 30.06, it's quite possible there's a "been there, done that" member who can help you. Thanks. "Only accurate rifles are interesting." | |||
|
| one of us |
.5 inch high at 50 is a very good zero | |||
|
| One of Us |
if you have a smartphone, get the Strelok app. most excellent. | |||
|
One of Us |
I sight my 3006 in for a maximum (point blank) of 1" above or below the line of sight. That way I am within 1" of my point of hold out to close to 200 yards. In your case if you sight in at between .25" and .375" high at 50 yards you will be very close to right on at 150 yards. (according to several of my ballistics programs.) There is always variations from one piece of software to another so I always fire the rifle at multiple ranges to see where it actually hits and then record that. I don't normally use 180 grain bullets in my gun because there is so much velocity lost from the 165 grain bullet that the lighter bullet is at least as effective as the 180 grain bullet. I have used the 180 grain Nosler Partition for bear and it is .... destructive on black bears of all sizes and ranges. The 165 would do the same job of killing without the meat loss that the 180 grain bullet provides. Speer, Sierra, Lyman, Hornady, Hodgdon have reliable reloading data. You won't find it on so and so's web page. | |||
|
| One of Us |
All good advice and it doesn't make a lot of difference, but if your max range is 75 yards, why not sight in for 75 yards? | |||
|
| one of us |
With an accurate rifle and copper free bore I would shoot and then zero at 175yds and see where it hits at 50yds.You should be close if not bullseye at 50yds and a little high at 100yds. | |||
|
One of Us |
Paul S. is spot on. Your best bet would be .33 high at 50 and that will be dead on or very close @ 150 and allow for velocity, BC, and scope height variations. Mike Legistine actu quod scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.  What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
|
one of us |
0.30" high @50 or 0.75" H @ 75 should get you close. I assumed v = 2,700 and BC = 0.48  | |||
|
| one of us |
All good points, but every rifle is an inity unto itself, so your getting close but no cigars with the comments.. Use the information you like on the replys but for goodness sakes at some point shoot your gun at 100, 200, 300 and 400 yards, even 500 if you can, record those groups...then use the same components everytime including brass, bullet, primers and powder, change nothing or it may very well move you point of impact in some cases. I normally sight my 30-06 in at 3" high at 100 yards with 150, 180, and 200 gr. bullet, that will be 4 inches high at 200 yards and dead on at 275 and 3 to 4 inches low at 300..I can hold on hair at up to 350 yards, on the backline at 400 with a breath of space between the two..this works with most 06s but you need to test every rifle.. NOTE: You must do this with each weight of bullet as drop will be different with each weight. The figures shown are for the 180 gr. only as that was your requested bullet weight. Even changing bullet brands of the same weight can show a change...Fortunatly most to the time the sighting works pretty well with most loads. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
|
| Powered by Social Strata |
 | Please Wait. Your request is being processed... |
|
The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles Point of impact for 30-06 at 50 yards
Visit our on-line store for AR Memorabilia