Hi everyone ,
I was wonder how much power is enough for wood speargun with specific shaft dia and length ,enough to penetrate at 6 m /4 inch thick fish ,for example my 130 gun can do that at 7mm spear 170cm /2*16.6mm rubber/315% elongation ,how about 7mm spear 150 cm ?or 6.75mm spear 120 cm ? Is there a formula or something can be used for that ?
I was wonder how much power is enough for wood speargun with specific shaft dia and length ,enough to penetrate at 6 m /4 inch thick fish ,for example my 130 gun can do that at 7mm spear 170cm /2*16.6mm rubber/315% elongation ,how about 7mm spear 150 cm ?or 6.75mm spear 120 cm ? Is there a formula or something can be used for that ?