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fdobson3
Guest
Is there a maximum bullet diameter or caliber that can be used in 1000yd heavy gun benchrest and is there an unlimited class?
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craigrowe58
Member
Williamsport HVY Gun rules
I just read on their site that a muzzelbrake can be used in the heavy gun class. Can somone verify this rule ,are they allowed,or is it just at Williamsport ,or is it a IBS misprint.
I just read on their site that a muzzelbrake can be used in the heavy gun class. Can somone verify this rule ,are they allowed,or is it just at Williamsport ,or is it a IBS misprint.
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oneflyer
Guest
Muzzlebrakes.........
are legal on heavy guns at Williamsport and NBRSA and as of this time not at IBS matches.
are legal on heavy guns at Williamsport and NBRSA and as of this time not at IBS matches.
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Louis Boyd
Guest
Which 1000 yard shooting organization?
In FCSA Heavy gun class the largest (and only) projectile diameter is .510-.511 inches diameter. 750 and 800 grain bullets are commonly used. Cartridges with more case capacity than the 50 BMG (such as the McBros Fat Mac which is a shortened and necked down 20mm case are allowed.
http://www.fcsa.org
Is there a maximum bullet diameter or caliber that can be used in 1000yd heavy gun benchrest and is there an unlimited class?
In FCSA Heavy gun class the largest (and only) projectile diameter is .510-.511 inches diameter. 750 and 800 grain bullets are commonly used. Cartridges with more case capacity than the 50 BMG (such as the McBros Fat Mac which is a shortened and necked down 20mm case are allowed.
http://www.fcsa.org
Last edited by a moderator:
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fdobson3
Guest
1000yd heavy gun at Hawk's Ridge
I started the thread. So I guess looking at Hawk's Ridge results for heavy gun
the 30 cal.s seem to get it done. I guess , since muzzle brakes are not allowed you would need a golf cart to get your heavy gun to the firing line and a body builder to help you lift anything suitalbe for 338 Lapua to manage its recoil. Huh?
I started the thread. So I guess looking at Hawk's Ridge results for heavy gun
the 30 cal.s seem to get it done. I guess , since muzzle brakes are not allowed you would need a golf cart to get your heavy gun to the firing line and a body builder to help you lift anything suitalbe for 338 Lapua to manage its recoil. Huh?
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Louis Boyd
Guest
Does big bore help benchrest?
Bigger is not necessarily better.
The current light gun 1000 yard NBRSA aggregate worlds record is 6.125", shot with a 6mm Dasher.
http://www.6mmbr.com/schatz1000.html
The current unlimited gun 1000 yard FCSA aggregate worlds record is 6.50" shot with a 50 BMG.
www.fcsa.org/wwwroot/visitors/worldrecords.php
Both are six 5 shot targets.
It would seem that caliber and gun weight are nearly neutral to 1000 yard benchrest accuracy.
(The above is the result of a web search. I'm not positive it's current).
Bigger is not necessarily better.
The current light gun 1000 yard NBRSA aggregate worlds record is 6.125", shot with a 6mm Dasher.
http://www.6mmbr.com/schatz1000.html
The current unlimited gun 1000 yard FCSA aggregate worlds record is 6.50" shot with a 50 BMG.
www.fcsa.org/wwwroot/visitors/worldrecords.php
Both are six 5 shot targets.
It would seem that caliber and gun weight are nearly neutral to 1000 yard benchrest accuracy.
(The above is the result of a web search. I'm not positive it's current).
Although it has not yet been made official Glen Sterling set a new 6 target 5 shot record agg. of 5.3272 at the 2008 NBRSA Nationals. Richard Shatz also broke the record at the Nationals by shooting a 5.3702.
Both were shooting a 6mm Dasher
I believe Shatz was shooting a 15# gun.
James
Both were shooting a 6mm Dasher
I believe Shatz was shooting a 15# gun.
James
Make a couple of assumptions. (1) The shooter can shoot benchrest pretty well. (2) The shooter can tune a rifle.
Here is what I think: pick a large number, somewhere between 60 and 80 percent. That's the contribution to accuracy of the individual barrel you happen to have.
Of the remaining percentage, pick another large number -- again, 60 to 80 percent. That is the contribution to accuracy of the bullets you are using.
You mention Hawks Ridge. Alvin Johnson either won or placed top 5 in both the year-long 6- and 10- match aggs for Light Gun. (I don't remember exactly. I know he won at least one of these outright. Again.) Alvin has always been tough to beat in L.G., & HG too, far as that goes. But his HG wasn't so good this year.
By the way, Alvin is still shooting the same barrel on his Light Gun that he started with back in 1995. He had to change in HG barrel a while ago.
So, Alvin fulfills (1) and (2) above, but so do a number of people. Does Alvin win so much because he shoots a .30, or because he has a very good barrel?
Here is what I think: pick a large number, somewhere between 60 and 80 percent. That's the contribution to accuracy of the individual barrel you happen to have.
Of the remaining percentage, pick another large number -- again, 60 to 80 percent. That is the contribution to accuracy of the bullets you are using.
You mention Hawks Ridge. Alvin Johnson either won or placed top 5 in both the year-long 6- and 10- match aggs for Light Gun. (I don't remember exactly. I know he won at least one of these outright. Again.) Alvin has always been tough to beat in L.G., & HG too, far as that goes. But his HG wasn't so good this year.
By the way, Alvin is still shooting the same barrel on his Light Gun that he started with back in 1995. He had to change in HG barrel a while ago.
So, Alvin fulfills (1) and (2) above, but so do a number of people. Does Alvin win so much because he shoots a .30, or because he has a very good barrel?