Range Template at Connaught

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This topic has come up in a few threads in the Precision forum, and has been mentioned here as well so I thought I would share the following link to a document I created:

Connaught Range Template Worksheet

This is simply a worksheet for those of you looking at working up builds or loads to shoot at any competitions held at Connaught, using the information provided by DCRA. Simply enter in your bullet BC (G1), and your MV and it will plot a point on the graph. Above the line is bad, below the line and you should be okay.

DISCLAIMER: This is for informational purposes only and Range Control has final say over what is acceptable or not. It also assumes a caliber under 8mm, consistent with DCRA rules.

Any questions, just let me know.

Scott
 
FTRRookie said:
This topic has come up in a few threads in the Precision forum, and has been mentioned here as well so I thought I would share the following link to a document I created:

Connaught Range Template Worksheet

This is simply a worksheet for those of you looking at working up builds or loads to shoot at any competitions held at Connaught, using the information provided by DCRA. Simply enter in your bullet BC (G1), and your MV and it will plot a point on the graph. Above the line is bad, below the line and you should be okay.

DISCLAIMER: This is for informational purposes only and Range Control has final say over what is acceptable or not. It also assumes a caliber under 8mm, consistent with DCRA rules.

Any questions, just let me know.

Scott
Click to expand...

Well written. thanks!
 
Mystic Precision said:
This effectively puts a cap on the arms race for the Worlds 2017. Be interesting to see how many Americans DONT come because of it.

Jerry
Click to expand...

What are the numbers for the current F/Open "big guns" (b.c. and m.v.)? I assume the typical bullet is something like a Berger 180 Hybrid (G1 b.c. = 0.674). With this bullet, you can have an m.v. of about 3010fps; dunno if that is exceeded by today's big boomers, or not...?
 
There are already many competitors that have to load down to meet the template, and they still seem to do alright.

If there are some who decide that that they'd rather not come in 2017 because they don't like the rules then so be it, but I'd like to think that with enough notice and opportunities to come and learn the range between now and then that they will be able to figure something out. Isn't it supposed to be about reading the wind anyway?
 
rnbra-shooter said:
What are the numbers for the current F/Open "big guns" (b.c. and m.v.)? I assume the typical bullet is something like a Berger 180 Hybrid (G1 b.c. = 0.674). With this bullet, you can have an m.v. of about 3010fps; dunno if that is exceeded by today's big boomers, or not...?
Click to expand...

US team is shooting 7 SAUM I believe, which should put the 180's very close to or over that template.

If a straight 284 can better 3000fps (not unheard of) I imagine the SAUM would go there and better without breaking a sweat.
 
rnbra-shooter said:
What are the numbers for the current F/Open "big guns" (b.c. and m.v.)? I assume the typical bullet is something like a Berger 180 Hybrid (G1 b.c. = 0.674). With this bullet, you can have an m.v. of about 3010fps; dunno if that is exceeded by today's big boomers, or not...?
Click to expand...

Dan, That restriction puts the entire RSAUM &WSM families out of the game. This is going to have a very real negative impact on attendance from F-Open shooters around the globe.

My 7-300WSM runs above 3000 fps as will most of the Brit and US Open shooters with RSAUM and WSM based rifles. The latest .30 cal offerings from Berger (215 and 230 gr hybrids) will also exceed the template when shot from either an RSAUM or WSM.
 
I'm not so sure it will deter attendance. Will make some people rethink their build/development plans,....
G
 
I for one am extremely unlikely to be coming to Connaught in 2017 to shoot in F-Open.

I also think this subject better be raised at the next ICFRA general meeting at the 2013 worlds so everyone knows in advance. This information needs to be widely publicized so we do not run into a situation where shooters arrive only to find out their equipment is not permitted.
 
Now I see a new game emerging with the bullet manufactures and there BC bragging rights!
My 284 shooting a Berger 180 grain hybrid with a BC of .674 and MV of 2910 is an acceptable load, but using a JLK 180 grain bullet with their advertised BC of .735 at the same velocity does not make the cut.
It will be interesting to see where this is heading!
 
The absurd part of all of this is DND allows their soldiers to shoot .338 Lapua on the exact same range at the exact same distances then puts reduced ballistic limitations on civvie shooters.
 
prairieguy said:
The absurd part of all of this is DND allows their soldiers to shoot .338 Lapua on the exact same range at the exact same distances then puts reduced ballistic limitations on civvie shooters.
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Quite true Prairieguy but its there range and they make the rules we are only guests thanks to DCRA. The template of the range can be worked around with loading the 7mm 180 work just fine at 2950 fps the extra 75 to 150 fps with the SAUM & win short mags is going to stop you from going to the 4 ring in a wind switch.
The thing that I am more concerned is someone blowing up a action testing loads in April & May that seem to be okay, but on the hot days of summer 38 to 40 c these loads can be dangerous, especially with a lot of shooters using the double base powders, VT 540,550 Rl17 and others that seem to spike in the heat.
If a accident was to happen just hope no one gets hurt, I would think we would have some battle to stop DND from banning civilian shooters. if it ever was to happen F class would be dead
in eastern Canada
 
prairieguy said:
I also think this subject better be raised at the next ICFRA general meeting at the 2013 worlds so everyone knows in advance. This information needs to be widely publicized so we do not run into a situation where shooters arrive only to find out their equipment is not permitted.
Click to expand...

I can assure you that it will be made very widely known, which is part of the reason I put the sheet together. FWIW, civilians can shoot greater than 8mm during CF sanctioned events, such as NSCC. The 8mm limit is imposed by ICFRA, and subsequently by DCRA.
 
FTRRookie said:
I can assure you that it will be made very widely known, which is part of the reason I put the sheet together. FWIW, civilians can shoot greater than 8mm during CF sanctioned events, such as NSCC. The 8mm limit is imposed by ICFRA, and subsequently by DCRA.
Click to expand...

I realize the 8mm limit is imposed by ICFRA but the stupid BC / MV curve is not.

There is nothing in ICFRA rules that would prevent me from necking down a .338 Lapua to .308 or 7mm and driving the snot out of those bullets if I was foolish enough to want to.
 
Right now the load to "beat" is a 30cal 230gr Hybrid at 2950fps or thereabouts.

Will not fit in the range template but the new hot thing in the US.

If someone can live long enough to finish a match, it will be a great big dose of stable in bumpy air.

Jerry

PS I think that the DND range template may just keep a spontaneous disassembly of a rifle from happening. Pressures are being run pretty hot in many Open rigs.

Even worst in some FTR set ups.
 
Unfortunately it's the price we have to pay to shoot on one of the better ranges in the world, and I'd guess that the chances of getting them to relax it are somewhere between slim and none. Isn't it more fun when you actually have to read the wind anyway?
 
Be aware that this is not a new rule. It has been in effect for over ten years and the match organizers have taken shooters word for their MV and BC, ie., DCRA and NCRRA. There is nothing stopping them from setting up a crono and testing however. I know the rules have been broken by guys that think they can just shoot through the wind rather than learning to read it. Many ranges like Connaught have increasing DCRA safety regs as they know that if anything goes wrong it could mean the end as we know it, have a look at the self imposed regs for Bisley. It's okay for the police and military to shoot themselves, it won't end up as the end for them, as we all know this is acceptable (for them).

I might add, with the advent of electronic targets all we need for a range is a bit of semi flat land and an adequate backstop, no more butts!
 
prairieguy said:
I realize the 8mm limit is imposed by ICFRA but the stupid BC / MV curve is not.

There is nothing in ICFRA rules that would prevent me from necking down a .338 Lapua to .308 or 7mm and driving the snot out of those bullets if I was foolish enough to want to.
Click to expand...

This is EXACTLY what i am building very soon!! It wont be a grenade though. Going to be done right.
 
Ultimately it comes down to the fact that there are people who live just on the other side of the river, and DND insuring itself against the risks inherent in that. For CF or LE they are willing to self-insure because these are people who are working, and because they are working it's just different. Us civvies are not subject to the same training, rules, chain of command, and/or scrutiny from our superiors and thereby represent a HUGE risk to DND. The range template is simply a tool that DND uses to limit their liability.

A .338LM, or hot 7mm could easily reach the other side of the river if it was touched off at the wrong angle. If that ever happened then we'd be off that range forever.
 
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