I get tired from work and doing math in the field is frustrating.
What about a 90 grain gold dot in a full power 270 win?

Ummmmmmmmm………………… I think laser beams have a higher B.C. than a 90 grain .277" bullet.

Ha!
Undoubtedly!

Just get a 257wby if you want a laser beam

I never do math in the field. Range, dial, shoot.

The 6ai does a good job for me.... I don't pack my lrf 90% of the time, I just hunt.... it's kinda fun actually.... grin

Sometimes I do that for prairie dogs. I never do that with a draw tag in my pocket but I do only hunt wide open spaces. It is just so fast to range, dial and shoot that I'll always do it. Lobbing in 140 vld or 147 Eld. Or .570 roundballs though I admit to not dialing that one. So maybe that one is my laser beam load? Hadn't thought of that.

Haha for sure Kurt!!!

Please tell me all about the 6ai...
I am totally unfamiliar but was looking at off the shelf rem 700 in 243, but it seems the 1.9 twist is too slow

Jud don’t need no stinking twist rate.... he just mashes the pedal.

He’s the Ricky Bobby of 24HCF....

A 129 LRX at as fast as a 270 can safely push it (3100-3150 ish) should get you out there a ways...

I run 80 grain ballistic tips at 3650 fps, 22" snout, 660 rem,, 2.5-8 leupold, no turret, no cds, just straight Ricky Bobby style!!! Haha

Betcha some 55 NBTs outta that thing would get there PDQ....

After all.... If you ain’t First.... You’re Last!

This is an odd question for the LR forum. Even the flattest combinations will barely get you an MPBR of 400 yards.

Yessir.

I guess the OP didn't specify his intended yardage...…………. There's no dialing on a .30-30 with 170 flat points to 150 yards...………..

Back in the day I used a .257 WBY, and 75gr Hornady hollow points at 4000+. It was an evil little SOB. That bullet had a jacket that would stay together in flight. The lighter Sierra bullets would come apart in flight..

Way before the laser range finder days...after a kill, I would always try to "pace" the distance to see how close my guess was.

Whats a laser? back in some of the deeper PA hollows, Barr & Strouds from WW1 are still in use.
And you wont be pacing off any distances, lol
But aside from that, I agree with your point, but only to another point, which you are of coarse aware of.

Boy I bet that was a nasty sumbitch

243 with 55’s are another “laserbeam” that gets deers attention...

100gr Scenar at 4000fps out of a 26 Nosler is a blast. Whitetail buck at 64yds to large hog at 321yds DRT wo any sight compensation

I kinda like a 140 AccuBond over a Layne Simpson load of 7828 in the 7-STW. A 160 or better would be even better at distance......but I just LOVE watching the 140's go over the chrono !!!

I'm curious what math you're figuring you'll need?

Forget about converting inches at certain yardage to scope clicks, it can be a lot easier than all that.

Set up your dope chart in mils, and use a mil/mil scope. Then you can just measure range, dial/hold to that value on the chart, and shoot. Are you getting more technical than that, or just making a simple solution more difficult per the traditional methods of inches per hundred yards and whatnot?

Better stated might be "What caliber and bullet combo will get the farthest Point-blank impact on game?"
to answer that question look at some things like the 26Nosler


The military defines Long Range as anything over 600yds. Unfortunately there is no rifle capable shooting Longrange without holdover or dialing up. If there was that would take away half the fun!
Good Luck
James

Used a .257 Wby with 80gr TTSXs before I got into longer ranges interest. For a MPBR rig it was pretty hard to beat. Just electrocuted stuff...

John

Perfectly stated.

MPBR of my 7-STW pet 140 grain load is 432 yards. Ironically, the pet 50 grain load for my .220 Swift MPBR is 431 yards.

The only MPBR theory I subscribe to is: Multiple Pabst Blue Ribbons.

There's always that...………….. Yep !!

My God Josh I figured e d you drank good beer!!!

That is what I meant...

No combo makes 500yds assuming an 18 inch target circle?

Robert_White,

I used the .270 24' barrel pushing Barnes 110 TTSX at 3,500 feet per second. That burger was flat! Took a couple deer and a couple big pigs. The pigs were broadside shots and both exited. One pig weighed 212 and the other weighed 236. I shot a big buck from one side of the canyon to the other side as it was going up. The 110 entered behind the diaphragm and traveled 23" stopping at the skin in front of the sternum.

Since then I switched to Hammer bullets and play with a 6.5Coyle.

You could probably just about get there... with a near zero MOA rifle. Your 18" circle shrinks rapidly as the rifle's precision strays from perfect one hole groups.

I am certainly not a sniper but an 18" target circle seems a tad large for shooting game animals, am I not understanding correctly?


mike r

An 18" target ??? Sure !!!

My 7-STW load has a MPBR of about 540 yards on an 18" target. The 432 yard figure I gave above is for a more realistic, hunting scenario, target of 10".

The 120 grain Nosler BT at 3325 out of a .280AI is pretty darn flat as is a .270 WBY with the 110 Accubond at 3600 + fps.

You could always go custom and try a 257 Allen Magnum, he claims 500 feet more velocity than a 257 Weatherby. That should have a pretty decent MPBR.

http://www.apsrifles.com/Allen_Magnum_Wildcats.html

There is no right or wrong target diameter to use when figuring MPBR, but I prefer a diameter of 6". Drift is ore of a concern for me than drop - by a wide margin. I MPBR zero for a 6" target at 7000 ft altitude because we hunt from 5000 to 9000.

Just worked up a .270 Win/150g LRAB load for Daughter #1, 2910fps. MPBR is just short of 300, 2000fps mark is 8000 yards, 1500fpe mark is about 685 yards. Laser enough for her.

Lots of cartridges make 500 yards with an 18" MPBR.

Think of an MPBR zero as shooting down a pipe the diameter of the target, with the bullet never touching the walls of the pipe. My 16.1" barreled .308 with 150g BT @ 2681fps easily reaches past 550 yards for an 18" MPBR. That would be a ridiculous way to zero it, though, as it would be 18" low at the muzzle.

My preference is a MPBR zero for a 6" diameter target, meaning the bullet is never more than 3" above or below line of sight. For most of my rifles that puts the bullet about 2.5"-2.8" high at 100. We use scopes with drop-compensating reticles and we check them at the range out to 600 yards. Past 350 yards we tend to use the reticles for holdover.

That makes a lot more sense to me.


mike r

Not to stir the schite pot, but...………………...a rough calculation gives your rig a MPBR of about 410 yards on an 18" target, rather than somewhere beyond 550 yards.

I VERY much enjoy,how Stupid Fhuqkers have tasked themselves,with making Retardation "fashionable". Congratulations?!?

1100yds+ of DOPE here,by simply looking through the scope and not touching a thing. 'Course wind is factored too.

HINT.



Bless your hearts,for doing your BEST.

Hint.

Laughing!....................

Depends on scope height. The next sentence in my post was this:
'That would be a ridiculous way to zero it, though, as it would be 18" low at the muzzle."

In other words, the scope would be mounted 18" above the bore. The bullet would rise and fall 18" for an MPBR past 550 yards for an 18" target. Was just trying to make the point that MPBR depends on multiple factors. The same load in the same rifle will have different MPBRs for a given diameter target depending on scope height. In the real world that means low rings vs mediums versus high rings.

Always happy to have someone check my statements, though, as I do make mistakes. Especially when posting in the middle of the night.

I've long thought some 55gr mono metal bullets would be good deer medicine. My son will probably be using Hammer Bullets 70gr .243" bullets this year for pronghorn. I want as close to point and shoot to 300yds as I can for him.

You’ll be gtg!! 👍

Before the LRF I used a 6-06 shooting 70gr SMK. Can’t do anything but grin looking back.. That bullets BC was sub .3 G1 . Different times.