World Comparisons at 1000yd Bench!

[a.JR]

s..

In Light Gun group 6 match Score
At Williamsport
1/ 6.86ins 6.5x284 1/ 95.50 6.5x284
2/ 7.02ins 308 Baer 2/95.00 300 Imp
3/ 7.16ins 6.5x284 3/94.50 308 Baer


In Heavy Gun Group 6 Match Score
at Williamsport
1/ 5.58 ins 300Imp 1/ 98.33 300 Wea
2/ 5.71 ins 300WSM 2/ 97.33 300WSM
3/ 5.93 ins 300Imp 3/ 97.33 300 Imp


At Hawks Ridge
In Light Gun 6 Match Group Score

1/ 5.65ins 300Ack 1/ 47.68 300Ack
2/ 5.98ins 300NM 2/ 47.16 30 TRC
3/ 6.08 ins 300Ack 3/ 46.83 6 Das

at Hawks Ridge
in Heavy Gun 6 Match Group Score

1/ 6.54 ins 300Ack 1/ 95.83 300Ack
2/ 6.64ins 6 Das 2/ 95.33 300Ack
3/ 6.72ins 300Ack 3/ 95.16 300Ack

At Townsville
in Light Gun 6 match Group Score

1/6.81ins 300Imp 1/ 46.5 300Imp
2/ 9.19ins 284w 2/ 45.83 30 JAT
3/ 9.48ins 30JAT 3/ 44.16 284w

in Heavy Gun 6 Match Group Score

1/ 7.89 ins 300 Red 1/ 95.83 300 Red
2/ 10.81ins 300Red 2/ 86.5 300Red
3/ 16.40ins 270w 3/ 81.00 270w

At Canberra
in Light Gun 6 Match Group Score

1/ 10.13ins 280 Ack 1/ 43.5 308w
2/ 10.90 ins 6.5? 2/ 43.3 6.5?
3/ 12.66ins 6 Das 3/ 42.66 6.5?

in Heavy Gun 6 Match Group Score

1/ 12.86ins 284w 1/ 88.33 ??
2/ 14.24ins ?? 2/ 88.16 284w
3/ 15.92ins 6.5? 3/ 86.16 ??

At Brisbane
in Light Gun 6 Match Group Score

1/ 5.92ins 6.5? 1/ 47.50 6.5?
2/ 6.84ins 6.5? 2/46.66 6.5?
3/ 6.90ins 6.5x284 3/ 46.50 6mm?

In Heavy Gun 6 Match group Score

1/ 11.32ins 300wm 1/ 93.3 300wm
2/ 12.76ins ?? 2/ 92.50 ??
3/ 13.20 ins ?? 3/ 89.83 ?

[Ackley Improved]

Go the Dasher!!!

[dg]

Jeff

Interesting compilation of data.

Although the cause of continuing chagrin to some !!

This info does reinforce the fact, that if they wish, 1000yd BR competitors (regardless of location) are able to make genuine and meaningful comparisons between their results and those that are achieved here and overseas.

Naturally, this can only apply to those competitors, who abide by and satisfy the IBS/NBRSA etc. rules for shooting the record target.


Cheers

Dave g

[RDavies]

I,m suprised that the groups at Canberra arent bigger. We dont often have very good shooting conditions in OZ to get the good groups. I certainly havent shot any long range events where a dasher or BR would be the pick.
Would the eperienced 1000yd BR shooters say that the reason that records get set with the BR cases is that to get a record, the wind has to be nearly dead or very very consistant, we might get once a year, then the BR cases will do well. Then for the 99% of our shooting, when the weather is snotty, a big 300 will do best, just to get any sort of group?

[Tony Z]

Rod any debate on caliber for LR BR is sure to start a perpetual arguement. As to why records are a way off from what the US is doing, that is also open to a perpetual debate. From my perspective i would say it has more to do with many things other than the rifles themselves. Wind is wind, mirage is mirage and sometime somewhere there will be someone who will find a hole in things just long enough to get a good group through. The caliber that will do it could be anything from 22 to 338. It is just simply luck.
But, for a repeatable day in day out performer over the course of a full year in all weather and all ranges, the choice is pretty clear in both classes of guns. Irrespective of what caliber is chosen, i have yet to find any that will drive through the crap. Some will be a little more forgiving and some not so. It's the "not so" ones that i have eliminated from my own personal use and have just recently removed or deFLYed my rifles so as they are very much set for 1K and 600.

From your perspective, being an FClass shooter, i can see where you have been heading for a lot of years now. Fast cals, slow cals, flat base bullets, VLDs etc. All done to have a little experiment going on and evaluating its performance for serious competition. The truth is that if there is a range full of 6.5s and 6 mills the chances are that either a 6.5 or 6 mil will win. If you are looking for an edge, the choices are out there but with them comes more recoil and more bag disruption and more chance to lose a shot as a result. The stats say a good 30 should trounce the pissants, but the whole package has to be developed to shoot off the ground. Transfering a statistical advantage from a concrete bench to a prone position is not as easy as one may think. 10 kg of rifle would make most of the 30 cals easy enough to shoot, but shooter comfort in the prone position is something that would take a lot of time to get right with the added recoil. Stock design and bag choice will play a much bigger part in the final outcome than it would with something like a 6 BR.

Jethro Bodine.

[RDavies]

Tony. For F class where 95% of the shooting is 700M or less, a smaller BR case for 95% of the shooting is ideal. Every F class open possible (100 out of 100)I have shot is with my BR, so I know they can shoot tiny little groups at long range, but this was in conditions which were not as tricky as in Sydney or Canberra. Statistics would point to 6 and 6.5mm cases being the best for F class overall. I have used my BR out to 1100 yds and while the elevation was spot on and I would have done well in mild conditions, or first shooter down at 8.30 in the morning, once conditions were not perfect, the little pills got blown all over the place.

If I wanted to break a record, I would use my trusty little BR and shoot early in the morning, or shoot at a my local range here where conditions are not as tricky.
But if I was to shoot at 1000yds at the ranges down here through the middle of the day , I would much rather the 7mm you will be building or a bigger 30 cal shooting 187gn pills (barrel on order).
You and Alan have done a lot more 1000yd BR than I have, so does this theory seem reasonable to you?

[a.JR]

s

[a.JR]

s

[Tony Z]

If a person was to take a long time to chamber a barrel, a very long time, and in the mean time the rifle that the barrel was to fit just happened to get sold, or its owner became senile overnight, does that mean that the 11 twist Hart would become the property of said chamberer? Sounds good to me.
Do you think that there is another action out there that just happens to share the same thread dimension, 32 x 1.5 mm, and a headspace of 30.00 mm, by accident And what was that tension nut thread you use uuummmmm, LH 32 x 1.5 mm? Just happens to be also used by another rifle i know.

Jethro Bodine.

[a.JR]

s

[john mc]

hi Tony thanks for the size of the threads and pitches -- i'll dig out one of the full bore garden stakes 9 have several in my garden ) run a thread on each end , drill a chamber at the big end and bring it with me next trip up north Do you think J R will notice the difference when i swap it for his tube hope to see you in a few weeks tine john mc