Does someone have n idea how fast the twist should be n what would be the land n groove dimensions .. ? .172 uses 1-9 does 177 would the same..? I dont want to cast 172 .. so I'm looking to have the tooling done so the barrels could be made..in order to use all ready aviable slugs..thanks
177 heavy.. 24gr to 28gr
- Thread starter mercado
- Start date
At least in my tuned uragan. 177 acurracy stopped at 16gr .. 18gr n up were all over .. I used to have a 177 condor barrel and it worked up to 16gr to I shot 21gr BT didn’t saw much acurracy.. so I sold it . I asked because there are a few members that know to use better the twist rate calculator than I do..I thought they could throw some light.. of approximate twist.. so the tooling to make the barrels could be done for testing.
Upvote 0
Most airguns already have trouble pushing 28 grain .22 slugs. I like to see what gun can push a 28 grain 177 slugs.
Upvote 0
I'm interested in using them on my airforce gun . They will push 30gr 177 without a hiccup..but in reality as far I could see acurracy in the 172 .. 1-9 is flawless between 24gr n 26gr .. they test up to 32gr but it seems the the 1-9 can't stabilize that heavy of a slug.. my question is because from 172 to 177 there is a size difference.. as soon my other 3 barrel arrives.. will go for 1-8 n 1-9 in .177 if it doesn't work well I start again.
Upvote 0