JGS 300 RCM (Ruger Compact Magnum) finish reamer and Go gauge

[.300 Dakota]

For sale is a SAAMI spec interchangeable pilot chamber finishing reamer that has cut exactly 1 chamber in a Muller Works barrel. Made to allow cutting oil pass through and wash out chips. Comes with Go headspace gauge. Paid $300. Sell for $100 firm. No trades; trying to accumulate cash. Shipping $8 via Priority Mail or actual is more to AK or HI. Thanks for looking!