Can I request a specific rifling twist rate on my order, like 1 in 70 instead of the standard twist?
You can request it, but it may take a long time depending on caliber and barrel availability. Jim does not think the difference between something like a 1 in 56 and a 1 in 70 twist is very significant for round ball shooting, so he encourages customers not to be overly particular about exact twist rate.