sighting In?

[CRTCHRKT750]

I just ordered a savage 111 FXP3 30-06 and should be getting it this coming tuesday. Now the question I have is how do you BZO a scoped rifle. I am a fomer U.S. Marine grunt and the only rifle I know how to sight in is a M16. Obviously I could sight in the scope to one set yardage but does anybody know how to or if it can be set to a BZO. I'm just used to knowing that with my M16 if I sighted in at 36 yards that also had the same point of impact at 300 yards and anywhere in between there the round would hit at about a maximum of 4 inches high. Any tips would be greatly appreciated. Thank you

 

[bpm990d]

With bolt actions they typically use the term Maximum Point Blank Range (MPBR) but it is the same thing as a BSZ. That range varies depending on the game you are hunting (the vertical lethal zone is different between an elk and a prairie dog) and the ballistics of the cartridge and bullet you are shooting.

The most reliable thing to do is to is use a combination of tools that include a ballistic program, a chronograph and range firing and then figure out how high your group should be at 100 yards or any arbitrary distance, to give you the most advantage.


You need to know:

What the bullet you are shooting is.

The velocity of the bullet (and it won't hurt to know the barrel length).

What kind of game.​

With this you can derive the MPBR and determine how high you need to be zeroed at 100 yds or any arbitrary distance you choose, to give you the most advantage.

If you read the article from Sierra Bullets it should answer many of your questions on specifics. If you have the above data I can help you figure it out.

B

 

[CRTCHRKT750]

Right now I have 165 grain fusion hunting loads and also 155 grain military surplus loads.

the 165 grain fusions travel at approx 2800 fps and it has a 22 inch barrel

 

[Adam_MA]

The very first thing I would suggest, is to replace the factory scope on that rifle. The included scope, is a Simmons 3-9x40. Fairly clear and bright optics, however there is no parallax adjustment on that scope. Shooting at 50yds is no problem, but once you get out to 100 yds+, you will notice the very obvious shortcomings of this scope. For instance, while looking through the scope, by simply tilting your head from side to side, you can get the POA to change drastically. So therefore, if you don't have the EXACT same cheek weld, and head position on EVERY shot, trying to sight this rifle in will drive you crazy.

I have the model 110 in 308, and for a while there, I thought there was something wrong with the rifle until an old timer at the range showed me what the problem was.

Good luck, and let us know how you like the rifle.

 

[CRTCHRKT750]

I am mostly going to be using it for target. but I do plan on hunting deer and hopefully bear if i get the opportunity

I kinda figured the stock scope wouldnt hold up to well. What do you recommend?

 

[Adam_MA]

THIS is the scope I put on my rifle. It is powerful enough to do anything I will ever need it to do. Bushnell makes great optics at a reasonable price.

 

[jkelly]

For big game hunting a pretty good rule of thumb for most standard .243, .250, .264, .270, .284, .30, 338 and .35 caliber center fire cartridges is to simply sight the scope 2 to 3” high at 100 yards. They all pretty much fall off hard between 260 and 330 yards. Sighting in at 2” high won’t matter much unless you need to shoot that far.

You can research your specific load, if you’re interested in shooting over 250 yards, but it is very likely that you will end up sighting your firearm between 2 - 4” high at 100 yards anyway.

I sight my 35 Whelen in 3” high at 100 yards and it should stay about +/- 4” out to 260-270 yards, not that I expect to be shooting that far. Your 30-06 should be a flatter shooting round, but not much out to 270 yards.

I use a 1.5-5X power Lepould on my 35 Whelen as finding a deer in the scope with a 4X can be a little difficult inside of 50 yards. My back up gun, a .270 Win, carries a 2x7 Lepould for the same reason. You’re not likely to be shooting bear out side of 35-50 yards (around here anyway).


Respectfully,

jkelly

 

[bpm990d]

I couldn't find the exact BC of the Fusion bullet, but I used the 165 Gr Sierra SBT hunting bullet. T


EDIT : PLEASE DELETE - SEE POST BELOW

 

[bpm990d]

I couldn't find the exact BC of the Fusion bullet, but I used the 165 Gr Sierra SBT hunting bullet. If you zero at 4.2 inches high at 100 yards, you should be good to go all the way out to 327 yards (with a 10 inch vital zone).

I started it out at a little less velocity because Fusion reported the MV gathered from a 24 inch barrel and yours is only 22 inches. A good rule of thumb for .30 cal is 25 fps/inch. I'd make sure to verify by actually firing at some of the longer ranges. You would be about two inches low at 300 yards. Again the BC wasn't available for the Fusion bullet, but this should get you close.

B

Calculation of Maximum Point Blank Range for a Vital Zone of: 10 inches 
Maximum Point Blank Range is 327 yards.   Set Zero at 278 yards
Trajectory for Sierra Bullets .308 dia. 165 gr. SBT at 2740 Feet per Second 
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.404   0.409   0.419   0.419   0.419
Velocity Boundaries (Feet per Second) of: 2400   1600   1600   1600
Wind Direction is: 9.0 o'clock and a Wind Velocity of: 10.0 Miles per hour
Wind Components are (Feet per Sec): DownRange: 0.0   Cross Range: 0.0   Vertical: 0.0
Altitude: 0 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units 
Range	Velocity  Energy     Momentum	Drop	Bullet Path	Wind Drift	
(Yards)	(Ft/Sec)  (Ft/Lbs)  (Ft-Lbs)  (inches)	 (inches)     (inches)  
0	2740.0	  2750.1	2.01	0.0	  -1.5	          0.0	
25	2683.7	  2638.2	1.97	-0.15	  0.38	         -0.05	
50	2628.0	  2530.0	1.93	-0.59	  1.96	         -0.2	
75	2573.1	  2425.3	1.89	-1.36	  3.23	         -0.46	
100	2518.9	  2324.1	1.85	-2.45	  4.17	         -0.83	
125	2465.2	  2226.2	1.81	-3.88	  4.76	         -1.31	
150	2412.2	  2131.4	1.77	-5.67	  5.0	         -1.9	
175	2360.3	  2040.8	1.73	-7.84	  4.87	         -2.62	
200	2309.2	  1953.4	1.69	-10.39	  4.34	         -3.46	
225	2258.8	  1868.9	1.65	-13.35	  3.41	         -4.42	
250	2208.9	  1787.3	1.62	-16.74	  2.05	         -5.51	
275	2159.6	  1708.5	1.58	-20.57	   0.25	          6.74	
300	2111.0	  1632.4	1.55	-24.87	  -2.02	         -8.1	
325	2063.0	  1559.0	1.51	-29.65	  -4.78	         -9.61	
350	2015.6	  1488.2	1.48	-34.95	  -8.05	        -11.26	
375	1968.9	  1420.0	1.44	-40.78	  -11.85	-13.07	
400	1922.9	  1354.4	1.41	-47.17	  -16.21	-15.04	
425	1877.5	  1291.3	1.38	-54.15	  -21.16	-17.17	
450	1832.9	  1230.6	1.34	-61.74	  -26.72	-19.47	
475	1788.9	  1172.3	1.31	-69.98	  -32.94	-21.94	
500	1745.8	  1116.4	1.28	-78.9	  -39.83	-24.59	
525	1703.4	  1062.9	1.25	-88.54	  -47.43	-27.43	
550	1661.9	  1011.7	1.22	-98.92	  -55.78	-30.46	
575	1621.2	  962.8	        1.19	-110.09	  -64.92	-33.68	
600	1581.8	  916.6	        1.16	-122.08	  -74.89	-37.11

 

[Jose]

I am mostly going to be using it for target.

Unless you mean plinking at paper targets, your rifle is not suitable for any type of competitive target shooting.

 

[jkelly]

For big game hunting a pretty good rule of thumb for most standard .243, .250, .264, .270, .284, .30, 338 and .35 caliber center fire cartridges is to simply sight the scope 2 to 3” high at 100 yards. They all pretty much fall off hard between 260 and 330 yards. Sighting in at 2” high won’t matter much unless you need to shoot that far.

You can research your specific load, if you’re interested in shooting over 250 yards, but it is very likely that you will end up sighting your firearm between 2 - 4” high at 100 yards anyway.---Me

Here is the ballistics table for the Fusion 30-06 165 grain you asked about.

http://www.fusionammo.com/FusionBallistics.html

You might not want to shoot out past 270 or so yards even with sighting in +4" at 100 yards. It rolls off very fast past 300 yards and your REAL ballistics are not likely to be as good as the table.

I’d still suggest 2-3” high at 100 yards and not shooting out past 250 yards if you just want to point and shoot.



Respectfully,

jkelly