Is the throat geometry consistent with 3.33? Meaning can the bullets tough the L&G given the mag box length for your bullet of choice? I only see this as an issue if: A. your chosen bullet requires a COAL longer than 3.33 to reach L&G, B. it won't produce a load that will shoot to your satisfaction.

With longer, more pointier (tech term for low drag <G>) bullets, the ogive is farther back on the bullet and can result in a required COAL longer than the mag box allows. I think the Bergers fall into this category. I'd like to think the Kimber folks thought of this and made the mag box-throat relationship fit most bullets on the market. I'm looking at Nosler AB and Barnes LRX for bullets. I don't think either of those is excessively long compared to the entire array of 7mm bullets available. In the end, I wouldn't be too depressed if it only shot 150/160 Partitions either.

Adversity doesn't build character, it reveals it.