For Tikka rifle owners wanting to load longer bullets.... The 223 caliber rifles are designed to also accommodate bullets longer than the factory magazine can allow. Modifying these rifles with alternative 3rd party magazines works but is very costly. Here is another way to do it.....
Modify an existing Tikka factory magazine as per the following.....
http://shootingshed.co.uk/wp/2012/06...-modification/
For what it's worth.