Hi all,
I'm new here, entered this forum in my search of a matching barrel to shoot Bob's boat tail slugs out of my FX impact II .30
I already ordered the mould at NOE with the thought that I had done my research.... but then I found other info again that did not correspondent with what I thought..... so, first time ever.....I join a forum in the hope someone can enlighten me in this search as my scraping of info on the net does not offer me a clear answer...
The biggest question for me is what is the ideal twist-rate and or twist-rate range?
Also, I live in the Netherlands and I have seen that a lot of parts are not allowed anymore to be sent from the US to Europe (strange as we supposed to be allies of each other) that leafs me with the original FX STX barrel with a twist rate of 21,5 (if I remember correct) or the LW barrel with a twist rate of 16.
Of course, I will have to tune the rifle also to get more power as the Impact normally shoots with 45gr pallets and the BBT is in between 62gr (HP) and 78gr. The rifle still has reserve to power up but I have also in mind to modify:
- longer barrel (700mm instead of 600mm)
- heavier hammer and spring (set)
- bigger flow port
I have seen some other mods that can be done but I will start with these.
My question is mainly if someone has experience with the BBT and or can tell me about the twist rate. Of course, any tip or advice would be very appreciated!
I wish you all a beautiful new year and thank you in advance for thinking along with me!