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how far will the shot travel


aauser
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A difinitive test of how far shot will travel from a 12 bore shot gun was carried out a few years back . Under ideal conditions taking in account baromatic pressure wind ECT . It was concluded that no 6 shot would travel for 260 metres and no 7 shot would travel for 240 metres . Clay grounds have to have a safty zone of 300 yards .

 

Harnser .

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I have a report in my possession prepared by a scientific university in conjunction with the military on shot fall-out.

 

All test firings were made using commercially available cartridges. Here's a selection of the results using 30gm of 6 shot, fibre wads taken on days when the wind speed was less than 0.5m/s:

 

Max range vs launch angle of 24 degs from a barrel mounted at 1.7m above ground - 209m.

 

Choke vs max range:

True Cylinder 209m

¼ choke 207m

½ choke 204m

¾ choke 206m

Full choke 207m

 

Effect - max spread at max range

Choke Maximum Spread (edge to edge)

True Cylinder 9.0m

¼ choke 8.5m

½ choke 7.0m

¾ choke 6.5m

Full choke 6.0m

 

Effect of wind on range (calculated)

10m/s (22mph) Tail wind - 69m increase in Range (278m)

10m/s (22mph) Cross wind - 56m side drift

 

There was very little difference in the max distances of difference no 6 shot in different weights, a 24gm 7.5 plaswad was also tested and travelled 187m. A 20 bore was also tested with fibre wad 25gm no 6 shot and full choke and that travelled 209m.

 

The conclusion is the greatest effect on travel distance is the wind.

 

I think that the minimum safety fall out zone advocated by the CPSA of 275m is good guidance.

Edited by philr
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I have a report in my possession prepared by a scientific university in conjunction with the military on shot fall-out.

 

All test firings were made using commercially available cartridges. Here's a selection of the results using 30gm of 6 shot, fibre wads taken on days when the wind speed was less than 0.5m/s:

 

Max range vs launch angle of 24 degs from a barrel mounted at 1.7m above ground - 209m.

 

Choke vs max range:

True Cylinder 209m

¼ choke 207m

½ choke 204m

¾ choke 206m

Full choke 207m

 

Effect - max spread at max range

Choke Maximum Spread (edge to edge)

True Cylinder 9.0m

¼ choke 8.5m

½ choke 7.0m

¾ choke 6.5m

Full choke 6.0m

 

Effect of wind on range (calculated)

10m/s (22mph) Tail wind - 69m increase in Range (278m)

10m/s (22mph) Cross wind - 56m side drift

 

There was very little difference in the max distances of difference no 6 shot in different weights, a 24gm 7.5 plaswad was also tested and travelled 187m. A 20 bore was also tested with fibre wad 25gm no 6 shot and full choke and that travelled 209m.

 

The conclusion is the greatest effect on travel distance is the wind.

 

I think that the minimum safety fall out zone advocated by the CPSA of 275m is good guidance.

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I would be interested in how far shot can travel if shot parallel to the floor and also how far it can travel and retain enough energy to be a danger.

 

I assume that pellets shot into the sky at a steep angle will largely run out of steam in the air and then just drop harmlessly like rain.

 

The max distance fired parallel to the ground isn't recorded as the purpose of the report was to identify the max fall out distance, so one would assume it to be less than I previously mentioned. The CPSA's recommended safety zone of 275m is there to prevent injury, so the closer you get to the firing station the chance of injury increases. You could always conduct that experiment yourself :o

 

The maximum height fired vertically has to be a calculation because of the difficulty of height measurement, but there's a scientific formula for it. It was calculated that the max height reached would be 166m, 80% of maximum range. The shot would fall once it has run out of energy to overcome gravity. Once it is falling it will start to accelerate again and there's a formula to work out how fast it would hit you, I don't think you'd would want to look upwards and have a pellet hit your eye.

 

PS plenty of beaters have been wacked by spent shot fall out and can vouch how much it can sting!

Edited by philr
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Agreed re range. Energy retained has, as far as I know, only being looked at re minimum killing power for various species up to about 50 yards or so. I have been hit by clumped shot at about 100 yards. It stung, but no big problem. probably best to ensure you have a decent back stop (same as for rifle) when shooting ground quarry. Of course if you really want to know the effect of shot at various ranges you could always follow in the footsteps of a particular landed gent who had his butler fire at his back at different ranges to get an idea of the impact. I assume he started very far away and worked backwards, until it seriously hurt. Nothing like dedication to the cause of furthering our knowledge is there! :lol:

PS I don't recommend it!

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300 yards unless you are in charge of the 2012 Olympics, in which case you can ignore all the guidelines and reduce it to 273 yards so that the event can be held at the unsuitable Woolwich barracks venue instead of leaving a legacy for British shooting at Bisley. ;)

The way things are going, we won't need Bisley anyway!

Where did that random law about locking up air rifles come from? No consultation that I saw. Just went for it. Probably make Bisley illegal next and backdate the legislation for fun and profit. :angry::mad:

Time for a Camel charge on Parliament I think! :good:

Edited by MartB
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