My advice is especially with a can involved for 300 the t3 lite is to light. I have a t3 in 7 rem mag with a hardy gen 4 and the poi walks with barrel heat up. To the point where it's hotter than a frypan after 3 shots taking up to 5 mins to make the shots. This will be Affecting you if you are practising LR on Gongs say...
There's a reason the t3 varmint has a heavy barrel...
Eventually mine will get a heavier contour barrel to be a better heat sink, but at the mo I'm working with what I've got and working with the known characteristics.
If you're building for a single long shot on a clean cold barrel - fine. just remember in training to treat it that way. Competitions or club shoots you want something else.
Just my 2c.
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