ULTRA-LONG RANGE CHALLENGE

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RDavies
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Re: ULTRA-LONG RANGE CHALLENGE

#16 Postby RDavies » Mon Oct 09, 2017 9:54 pm

How did Monday 1500yds go?

Cliff Austen
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Location: Sydney NSW Australia

Re: ULTRA-LONG RANGE CHALLENGE

#17 Postby Cliff Austen » Tue Oct 10, 2017 9:22 am

29 shooters
Day 2 1500yds was washed out.
Day 3. The 20 shot match at 1500. 20 competitors.
The Grand Results.
Match Rife.
Philip Bain. 453.33. 1500y - 158.6
Match Rifle Reserve.
David Xuereb. 433.22. 1500y - 143.4
F Open.
Lou Shallis. 520.20. 1500y - 174.1
FTR.
Geoff Willis. 492.11. 1500y - 163.1

Full results will appear on the Match Rifle web site.
cheers
Cliff

AlanF
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Location: Maffra, Vic

Re: ULTRA-LONG RANGE CHALLENGE

#18 Postby AlanF » Tue Oct 10, 2017 12:34 pm

Just made it home.

Well done Lou Shallis in F-Class - he had his SAUM humming. And also congrats to Geoff Willis in F/TR and Phil Bain in MR.

Thanks to all who organised this event - very well run - as usual at MR events, relaxed and easy going.

Conditions were very good apart from the rain on Sunday afternoon. Just about perfect conditions for the Monday 1500 after the fog lifted.

There was one problem however, and that was not enough shooters. There just doesn't seem to be enough of us who want to shoot F-Class 1500 yards. The muzzle energy limits are fine - plenty for a 284 to be supersonic, and some of the MR 308s were holding excellent elevation, which is the key to success.

RDavies
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Re: ULTRA-LONG RANGE CHALLENGE

#19 Postby RDavies » Tue Oct 10, 2017 4:26 pm

AlanF wrote:Just made it home.

Well done Lou Shallis in F-Class - he had his SAUM humming. And also congrats to Geoff Willis in F/TR and Phil Bain in MR.

Thanks to all who organised this event - very well run - as usual at MR events, relaxed and easy going.

Conditions were very good apart from the rain on Sunday afternoon. Just about perfect conditions for the Monday 1500 after the fog lifted.

There was one problem however, and that was not enough shooters. There just doesn't seem to be enough of us who want to shoot F-Class 1500 yards. The muzzle energy limits are fine - plenty for a 284 to be supersonic, and some of the MR 308s were holding excellent elevation, which is the key to success.

Congratulations to all who won and to those who attended.
I hope to come along next year with a bunch of others who couldn't make it this year.

bainp
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Location: Wagga Wagga, Australia

Re: ULTRA-LONG RANGE CHALLENGE

#20 Postby bainp » Tue Oct 10, 2017 6:13 pm

Results and photos on Australian Match Rifle site at;
http://matchrifle.org/Results_Australia ... n_2017.htm
Phil

bartman007
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Location: Gippsland

Re: ULTRA-LONG RANGE CHALLENGE

#21 Postby bartman007 » Wed Oct 11, 2017 10:11 am

I noticed that a few didn't shoot 1500. Is that because they ran out of elevation?
###

mike H
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Location: JUNEE NSW

Re: ULTRA-LONG RANGE CHALLENGE

#22 Postby mike H » Wed Oct 11, 2017 12:52 pm

bartman007 wrote:I noticed that a few didn't shoot 1500. Is that because they ran out of elevation?

The main reason was that some of the competitors were Match Rifle shooters having Australian Team selection training on Friday,some I know had to return home for work and couldn't stay for the whole time,I only know of one person that wasn't interested in shooting 1500 yards at all.
Mike.

bainp
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Location: Wagga Wagga, Australia

Re: ULTRA-LONG RANGE CHALLENGE

#23 Postby bainp » Wed Oct 11, 2017 4:25 pm

The organising group recognise that some people may have some difficulty in getting enough elevation on their telescopic sights, so we have made what we call sighting boards. These boards are 300 mm in height, 2400mm in width and painted black and white in the same dimensions as the long range target. That is where the target is white, the board is white, and where the target is black the board is black. These boards are placed on the top of the stop butt directly in line with each of the targets and can be aimed at instead of the target itself. The elevation saved on the scope is about 8 to 10 minutes of angle, depending on the calibre and bullet weight used. Some of the competitors did use the aiming board.
Regards - Phil

PS. There were a few people turn up that had never shot long range previously, and made the decision to come along to see what it was all about. On guy even joined one of the state associations just in the last month so that he could come and have a shoot at this comp.
PS2. Another problem of shooting the ultra long range, apart from enough elevation availability in the scope, is that some people think that you need to drive the bullet faster than at short range. This will only give elevated pressures in your rifle with little benefit to long range performance. All the long range exponents will tell you to use heavier bullets at reasonable pressure to get the most of the rifle at extended range. Have a read of this article.
http://www.geoffrey-kolbe.com/articles/art1.htm

pjifl
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Location: Innisfail, Far North QLD.

Re: ULTRA-LONG RANGE CHALLENGE

#24 Postby pjifl » Wed Oct 11, 2017 5:29 pm

That article by Kolbe contains some outdated information on ballistic calculation methods and ballistic coefficients. But in general it is correct.

There is a short addendum to it which is more recent and worth reading.

I have won a few MR (FO division) contests with a 6.5 Rogue a few times and also a 284 using 180 VLDs. I would not be frightened to use a 6.5 maybe even out to 1500y. The muzzle V was not extra high but the score was exceptional. But my choice now would be a 7 SAUM because the standard of competition has been lifted.

If I was close by I would love to attend this shoot because I find Match shooting and the Match people some of the best and the shooting very rewarding.

Congrats to everyone who organized and attended.

Peter Smith.

RDavies
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Location: Singleton NSW

Re: ULTRA-LONG RANGE CHALLENGE

#25 Postby RDavies » Wed Oct 11, 2017 11:20 pm

bainp wrote:The organising group recognise that some people may have some difficulty in getting enough elevation on their telescopic sights, so we have made what we call sighting boards. These boards are 300 mm in height, 2400mm in width and painted black and white in the same dimensions as the long range target. That is where the target is white, the board is white, and where the target is black the board is black. These boards are placed on the top of the stop butt directly in line with each of the targets and can be aimed at instead of the target itself. The elevation saved on the scope is about 8 to 10 minutes of angle, depending on the calibre and bullet weight used. Some of the competitors did use the aiming board.
Regards - Phil

It is a while since I shot 1500yds at Coona but I agree that the sighting boards work very well in practice. Back then, my scope didn't have the necessary elevation to get to 1500 with the slow running (2810 fps with 168 VLDs) 284 I was running then. I found the 1200 zero fired at the sighting boards was a very close 1500 zero and the markings worked well for hold off. (1500yd accuracy was good even with this pedestrian load.
With better ballistics people are using these days and the new Nightforce Comp scopes having much more elevation adjustment, selecting the right tapered base (and/or offset rings) will mean most people will be able to get enough elevation adjustment to get from 100yds to 1500yds.

AlanF
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Re: ULTRA-LONG RANGE CHALLENGE

#26 Postby AlanF » Thu Oct 12, 2017 8:27 am

I had a come-up of 48 minutes from 100yds to 1500yds using 183gn SMKs at MV 2860fps (284 Shehane). My old Leupold 6-20 has 90MOA adjustment so achieved it comfortably. But I got a very good lesson in how critical low velocity spread is at ultra long range. The load was holding better than X ring at 800yd in prior testing, but at 1500 I was getting high and low 4s.

Steve N
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Location: Logan Queensland

Re: ULTRA-LONG RANGE CHALLENGE

#27 Postby Steve N » Thu Oct 12, 2017 8:33 am

AlanF wrote:I had a come-up of 48 minutes from 100yds to 1500yds using 183gn SMKs at MV 2860fps (284 Shehane). My old Leupold 6-20 has 90MOA adjustment so achieved it comfortably. But I got a very good lesson in how critical low velocity spread is at ultra long range. The load was holding better than X ring at 800yd in prior testing, but at 1500 I was getting high and low 4s.


What were the scoring ring values on the target Alan? Same as normal or different? How bad was a 4?

AlanF
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Re: ULTRA-LONG RANGE CHALLENGE

#28 Postby AlanF » Thu Oct 12, 2017 9:31 am

Steve N wrote:What were the scoring ring values on the target Alan? Same as normal or different? How bad was a 4?

MR uses the 8-900 2002 target : 6 ring 305mm, 5 ring 610mm, 4 ring 1220mm
c.f. ICFRA LR : 6 ring 255mm, 5 ring 510mm, 4 ring 815mm

My vertical 4s were still in the black, so probably grouping about 1 metre vertically :roll: .

RDavies
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Location: Singleton NSW

Re: ULTRA-LONG RANGE CHALLENGE

#29 Postby RDavies » Thu Oct 12, 2017 2:08 pm

AlanF wrote:
Steve N wrote:What were the scoring ring values on the target Alan? Same as normal or different? How bad was a 4?



My vertical 4s were still in the black, so probably grouping about 1 metre vertically :roll: .


Just wondering, what was your ES/SD in testing?

AlanF
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Location: Maffra, Vic

Re: ULTRA-LONG RANGE CHALLENGE

#30 Postby AlanF » Thu Oct 12, 2017 3:27 pm

RDavies wrote:Just wondering, what was your ES/SD in testing?

Didn't record it Rod. But can only assume it was at least 10fps SD.


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