Maximum point blank range and sighting in at particular distances...

[R.K.]

My suggestion? Practice at the farthest range you expect to hunt. You’ll figure out where the gun hits rather quickly. Put in the time and you’ll get there.

 

[brymoore]

@nastynate

You’re overthinking this situation.

MPBR is an easy solution to sighting in rifles. Sight the rifle in at 25 yards. Once dialed, move to 100 yards. The rifle should be 3”s high at 100 yards. If not, make the minor adjustments to be 3”. Don’t bother with minute issues of being 2.8” high. Put the ballistic information into your calculato, go forth and concur. If you use MPBR, you should be able to hold and shot to approximately 350 yards. You can dial after that yardage or farther as you see fit.

Army sights in its M4s in this manner too.

Great thing about MPBR, if you think your rifle is off in the field, shoot something at 25 yards to check your accuracy.

 

[3855WIN]

Not an answer to your question, but I’d try to find a round that is a little more accurate.

 

[nastynate]

Thanks for all comments. I didn’t adjust anything. Shot at 100, 200, and 300. My actual zero range is probably 220, based on where everything else is hitting. But I’m ready to go.

Groups are about 1MOA, btw. The gun is more accurate than I am, that’s for sure.

 

[Don Fischer]

I've never heard of doing MPBR at a specific range before. I do MPBR with a big game rifle at an 8" target. Usinf my 243, 25-06. one of my 6'5's or the 30-06 it works out real well. bullet never rises above 4" over line of sight ad shows the drop when the bullet goes 4" below. None of my rifles shoots to a dead hold to 300 yds But at 300 yds all will give me a good shot holding on the back line. Works out real well for me as L don't shoot beyond 300 yds anyway. You extend the range to zero and you change the path of the bullet. MPBR should be done at a particular size target. have a 243 I did it with a 3" target just for coyotes in high grass. Most times all I could see was a head!

 

[Wind Gypsy]

@nastynate

You’re overthinking this situation.

MPBR is an easy solution to sighting in rifles. Sight the rifle in at 25 yards. Once dialed, move to 100 yards. The rifle should be 3”s high at 100 yards. If not, make the minor adjustments to be 3”. Don’t bother with minute issues of being 2.8” high. Put the ballistic information into your calculato, go forth and concur. If you use MPBR, you should be able to hold and shot to approximately 350 yards. You can dial after that yardage or farther as you see fit.

Army sights in its M4s in this manner too.

Great thing about MPBR, if you think your rifle is off in the field, shoot something at 25 yards to check your accuracy.

I dont get why people would do this in this day an age. 165 copper in a tikka 30-06 is probably 2700 fps’ish. 3" high at 100 is probably in the neighborhood of 7" low at 350. Given that most hunters aren't going to be 3 moa shooters in field situations, further complicating that with 7" of POA error to start isn't a good situation not to mention 3" of error even at 100.

 

[MS 9x56]

I just do 300 yard zero. Zero first 3” high at 100 and then check at 300.

Can’t go wrong with the master Jack O’Connors method.

 

[Forkyfinder]

Can’t3 go wrong with the master Jack O’Connors method.

I mean it works - i guess.

But youre hunting adjacent to people that can spin a knob, use a rangefinder, and a modern ballistics calclator to be within a relatively small margin of error at those ranges and further.

 

[ignorethefringes]

I mean it works - i guess.

But youre hunting adjacent to people that can spin a knob, use a rangefinder, and a modern ballistics calclator to be within a relatively small margin of error at those ranges and further.

Yeah, but when that buck is walking away, nearly out of sight, you have a dip can in your hand, and a six pack in your gut, what method is faster? The old “hold a little high” of your fancy technology?


/sarcasm

 

[MS 9x56]

Myself I would rather be shooting than fiddling with calculators and knobs. But that’s just because I am old school and it has worked for me for 50 years so what do I know