looking for high accuracy at long distance

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You guys are going the wrong way (large caliber). Simply take a 6.5mm 139gr Lapua Scenar in the cartridge of your flavor, and drive it at 2900fps, and you will remain sonic at well beyond 1500 yards. I drive these bullets at about 2950fps out of my 6.5x55 match rifle, and they don't go transonic until nearly 1700 yards.
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and

Take a look at the 6.5-284 Savage F Class rifle. You can get one between $1000 and $1300. I have one that I use at a 1000 and I imagine it would shoot 1500 but I never did it. You can put together a Savage F Class and top it with a Burris Black Diamond scope for $1700 - $2000.
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I'll have to second that, on second thought. I didn't realize that a 6.5 could stay supersonic that far. I was thinking 6.5 out to 1250, but for for 1500 you'd want a .338 or .50 bmg.
 
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Hmm. Wonder if Mr Labrozzi will be showing SIUS electronic targets at the SHOT Show. If so, I will look him up.

In the meanwhile, I have been making some connections on Ham TV as a spotting system.
 
You guys are going the wrong way (large caliber). Simply take a 6.5mm 139gr Lapua Scenar in the cartridge of your flavor, and drive it at 2900fps, and you will remain sonic at well beyond 1500 yards. I drive these bullets at about 2950fps out of my 6.5x55 match rifle, and they don't go transonic until nearly 1700 yards.
Click to expand...

I didn't realize that a 6.5 could stay supersonic that far.
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Wrong, and they can't. According to a ballsitics calculator, a .615bc 139gr 6.5 bullet going at 2950 makes it to 1200 only. On a very high temp day, that is to 1,300yd, but still way short of 1,700yd. A .300win mag launching a 240gr SMK at 2800 (not sure, that is just a guess, does anyone know what the actual velocity is?) doesn't even make it to 1,350. YOu have to be launching the bullet faster, hence my suggestion of the .30/378wby. After that you will need something at least near the .338 LM.

Just curious, where did you get that info?
:)

ETA: A .300 WM would get nowhere near 1,500, according to how fast it could shove a 240gr SMK.
 
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Long range shooting is fun. Start shooting with what you have, 30-06, 308, 45-70. They all get there it's just the hold over rainbow trajectory. A rare part you already have is the place and range to do it. I'd figure out a way to run a video camera and view it from the firing line. Maybe a car battery for power.
For affordable ammo I'd stick with cartridges that use 30 cal bullets and Large Rifle Primed cases. The BMG primers are to expensive, cases to.
One I was looking at was the 30-338. It had the Barrett BORS System on a Leopold and another had a Burris Black Diamond scope.
 
The .340 Weatherby Mag has about the same ballistics as the .338 Lapua Mag at the same or lower price.

The .300 Pegasus seems to be about the fastest .30 cal for across the counter ammo (you just gotta find the counter).

Over the counter rifles for this kind of range leave little to be desired with the exception of some of the high dollar "sniper" rifles...I believe it would be more fun to build your own. Perhaps turning a Rem 700 action round and pressing an almuinum sleeve over the action and barrel to stiffen things up a little. Do an internet search (perhaps 'benchrest') and see what you come up with.

As pointed out, seeing where the bullet strike is a 1,500 yards is somewhat of a problem. I would suggest a remote video camera that will provide some kind of instant replay or tape/disc that can be viewed after the shot. Mount the camera below target level behind a suitable deflector of some sort. Focus the camera on the target board. I would suggest a target board of at least 8' X 8' (two sheets of plywood) so that you have 4' around the target. I believe that I would paint the target board black and cover it with white butcher paper.

This sounds like an interesting project.
 
gvnst, i also checked when he posted that. i punched that into jbm at 2950 iirc, it said it was still mach 1.1 at 1400 yrds, but it seems to be down now so i can't verify
 
gvnwst, well, it's up again but slow. i tried the 139g and it says they are mach 1.049 at 1500yrds and .997 at 1600 yrds
i was using the 123g
 
my bet is that they use the same formula but have different values for the speed of sound
 
gvnwst,

Your data is WAY wrong. I regularly shoot 1,000 yard F Class, and the 139gr Lapua Scenar at 2950fps only takes about 25MOA to reach 1k. 1200 yards is just a "chip" shot for a bullet with that high of a BC at that velocity.

Don
 
According to my calculator it would be 26moa, so not far off. 1200 is possible yes, i was mostly contesting that your statment of a 1700yd supersonic range was off.
 
Per Point Blank software: at 1700 yards the velocity is 1135fps at an elevation of 1400' at which I shoot. So, at what velocity does a bullet go transonic?

Don
 
depending on temp, it is usually something around 1,200fps. In 60 degree temp it is 1,080 IIRC. I have it at about 987fps at 1700. So, one of our calculators are wrong, or a important variable is different.
 
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USSR gave you the best advice anybody can give you for a "inexpensive" way to get to 1500 yards.

The 6.5x55 will make it in fine fashion and its waaay easier on barrels than a 6.5x284.
 
USSR,
Transonic is generally considered to be mach 1.2 (1300 fps at your elevation) and below. Now I think that this whole "transonic" thing gets blown waaay out of proportion sometimes.

It does not spell "the end" for accuracy...its just that accuracy does suffer a little after going transonic.
 
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