John,
I would be very interested in the procedure used to modify the Tikka SA magazine in order to accommodate longer rounds. I have a T3 Hunter which features a 1-8" twist barrel but would like to seat some bullets out further.
Thanks.
Not MD but I modified my .260 Tikka mag by milling out the rear plastic partition and epoxy glued a shorter version of it in it's place. Some have used a piece of aluminum c- channel of the proper dimension, available at some hardware stores. I then ground a bit off the bolt stop to give it a bit longer stroke. You can see what to shorten by looking at a pic of the long and short bolt stop together.
This worked great for me as I can now seat to the lands with 140gr VLDs and my Tikka went from a very ordinary shooter to the accuracy level I hoped to get, and maybe even better.
I had no luck with the long magazine, would not feed the .260s very good at all.
