Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
Well, after having so much fun last weekend pounding rocks at 1 mile, the brain wonders "What would it take to go further....much further????"
A bit of time with the JBM software and a whole lot of extrapolation, this is what I found/guessed.
Using either the 220gr MK (3050fps) out of my 300RUM or a 180gr Berger (2850fps est) from my 7 Mystic, the amount of UP is surprisingly very very close. For extreme distance, BC trumps velocity. Also, EVERYTHING goes subsonic. Will be critical to test how well these bullets handle going subsonic.
With a 1000m zero (30.5" high at 100yds), getting to 2000yds will need an additonal 61.5min, 2500yds - 119.5min, 3000yds - 197.5min, and the ultimate goal of 3500yds better know as 2 MILES - 297min of UP.
Based on shooting at 1 mile, I think these numbers may be conservative but you can adjust once you start shooting
So to get from 100yds to 2 MILES, you just need to crank up 327.5 min or hit 27.29 FEET high at 100yds
From 3000yds to 3500yds, you need to crank about 19 min for every 100yds you advance. Time of flight is likely in the 6sec range to get to 2 miles. Yeah, you spot your own shots. Wind drift in a wee bit of wind is well, more then a few inches
WOW, how's that for a challenge?!!!
It has certainly been reached before so the concept is not totally batty. Well, 98% nuts, 2% something.
How do you do this?
Surprisingly, the biggest hurdle is moving that scope and seeing where the hell that bullet is landing. An adjustable check rest is also kind of necessary.
I have been mucking with some simple drawing for a moveable scope base. Not particularly hard to make if I can access some machinery. You also don't need to tilt crazy amount to gain the elevation. If I get the centers right, about 1 thou for every min I need so a 1/2" tilt should be enough.
The bullet landing part. Not sure. The area I use is quite sandy and does throw off nice puffs of dust so walking out the shots is more then likely. Keeping track of wind drift will be very interesting indeed.
In a 10MPH wind, the estimate is 14 min or 24 1/2 FEETat 2000yds. I can only imagine that at 3500yds, that number is tripled, maybe quadrupled. Calm day shooting me thinks.
No sub MOA is pretty much out of the question. I am hoping to hit the mountain.
So let's see who is up to this challenge. You don't need a boomer but a heavy bullet does help. I will be testing the 180gr Berger shortly to see how it shoots in my rifles. I already know how the 300RUM shoots.
Then there is the R&D to make up some form of base before shooting.
Fun, fun, fun...
Jerry
A bit of time with the JBM software and a whole lot of extrapolation, this is what I found/guessed.
Using either the 220gr MK (3050fps) out of my 300RUM or a 180gr Berger (2850fps est) from my 7 Mystic, the amount of UP is surprisingly very very close. For extreme distance, BC trumps velocity. Also, EVERYTHING goes subsonic. Will be critical to test how well these bullets handle going subsonic.
With a 1000m zero (30.5" high at 100yds), getting to 2000yds will need an additonal 61.5min, 2500yds - 119.5min, 3000yds - 197.5min, and the ultimate goal of 3500yds better know as 2 MILES - 297min of UP.
Based on shooting at 1 mile, I think these numbers may be conservative but you can adjust once you start shooting
So to get from 100yds to 2 MILES, you just need to crank up 327.5 min or hit 27.29 FEET high at 100yds
From 3000yds to 3500yds, you need to crank about 19 min for every 100yds you advance. Time of flight is likely in the 6sec range to get to 2 miles. Yeah, you spot your own shots. Wind drift in a wee bit of wind is well, more then a few inches
WOW, how's that for a challenge?!!!
It has certainly been reached before so the concept is not totally batty. Well, 98% nuts, 2% something.
How do you do this?
Surprisingly, the biggest hurdle is moving that scope and seeing where the hell that bullet is landing. An adjustable check rest is also kind of necessary.
I have been mucking with some simple drawing for a moveable scope base. Not particularly hard to make if I can access some machinery. You also don't need to tilt crazy amount to gain the elevation. If I get the centers right, about 1 thou for every min I need so a 1/2" tilt should be enough.
The bullet landing part. Not sure. The area I use is quite sandy and does throw off nice puffs of dust so walking out the shots is more then likely. Keeping track of wind drift will be very interesting indeed.
In a 10MPH wind, the estimate is 14 min or 24 1/2 FEETat 2000yds. I can only imagine that at 3500yds, that number is tripled, maybe quadrupled. Calm day shooting me thinks.
No sub MOA is pretty much out of the question. I am hoping to hit the mountain.
So let's see who is up to this challenge. You don't need a boomer but a heavy bullet does help. I will be testing the 180gr Berger shortly to see how it shoots in my rifles. I already know how the 300RUM shoots.
Then there is the R&D to make up some form of base before shooting.
Fun, fun, fun...
Jerry
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