smallfish

Thank you, guys! Yes, I'm happy to be here and hope to become a useful part of local community.

your calculation is correct, except the last statement - to sink the pipe "with air" you need 109 lbs. As oil is heavier than air, and about 0.8 of wight of water you need less metal if you fill pipe with oil. So, oil wight is 109 * 0.8 = 87.2 lbs and you need only 109 - 87 = 22 lbs of ammo which just about 1k of rounds.

Hi everybody. I recently moved ( escaped ?) from bay area / California to Knoxville. So far I was pretty busy with relocation / kids and schools / work etc. And only now it looks like I finally got some time I can spend on myself. Pretty common situation... I brought some stuff I could not use in Cali in hope to start shooting again more or less regularly. I prefer long range shooting, so planning to check if I can visit ORSA. Do you know if I can just stop by and apply for membership? I saw on their website that it needs to be sponsored by a current member, but unfortunately I know nobody in this area. I appreciate any advice, thank you in advance.

> That won't sink. really? A pvc pipe with metal stuff inside and filled with oil wouldn't sink? ok, a quick and dirty calculation: oil is about 0,8–0,9 kg/l ( let's say 0,8 ). water is 1 kg/l. so if you add at least 0.2 kg on 1L of internal volume ( neglect weight of pvc pipe) the whole construction will perfectly sink... a reference guide : 1 kg is ~2 pounds, 1L is ~1/4 of gallon.

i'd use pvc pipe/pipes and fill it with motor oil.