I performed a comparison between a Wilson seating die, a Redding competition seater and a Forster competition seater. The Wilson has a micrometer seating head as does the Redding & Forster. The comparison consisted of inserting a 3x fired .243 A.I. piece of brass into the body of each die and measuring the side clearance between the bottom of the case rim and it's contact with the i.d. of the dies. In the case of the Redding & Forster it was between the case rim and the i.d. of the sliding sleeve. I used a Starrett dial indicator with the appropriate button secured to the outside of the die body. Placing the indicator button against the case rim, I pre-loaded the dial indicator so that by pushing on the bottom of the case rim I could measure side to side deflection which could result in bullet run out. As expected, the Wilson die exhibited no measurable deflection when I pressed against the rim with my thumb. The Redding and the Forster showed a deflection of approx. .003. I then checked the deflection of the o.d. of the sliding sleeve against the i.d. of the Redding & Forster die body and found there to be approx. .001 deflection. The purpose of this test was to determine what my concentricity gauge was revealing in loaded bullet run out. The conclusion is that Wilson dies have the competition beat, hands down. If you want to increase the accuracy of your threaded competition seating dies, you can obtain an unreamed sliding sleeve from Redding or Forster and have your gunsmith ream the sleeve with the reamer that chambered your rifle. These sleeves are soft steel and can be purchased from Redding & Forster with a caliber specific pilot hole. This will make them as accurate as they can be. I thought other members would find this interesting.
I, like alot of other shooters, fall prey to slick advertising. I'm not faulting Redding or Forster, as they make an excellent product. The point I'm trying to make is that sometimes the simplest solution, Wilson dies, is the most accurate. There's a reason that Wilson has been around a long time and haven't had to change their original design.
I, like alot of other shooters, fall prey to slick advertising. I'm not faulting Redding or Forster, as they make an excellent product. The point I'm trying to make is that sometimes the simplest solution, Wilson dies, is the most accurate. There's a reason that Wilson has been around a long time and haven't had to change their original design.