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IMO you should not use more than light finger pressure to debur flash hole. A very light turn of the tool accomplishes this. You only want to remove the thin burr left by the hole punching process not cut or shape the flash hole. Uniforming the primer pocket requires cutting and shaping where a...

I have never had a split neck or case with 4 different 6PPC rifles using Norma, Lapua or Sako brass. Many loads approaching 3300 fps. Were these cases fireformed? Did you check dimensions of brass before and after shooting? Did you check headspace of brass before and after? It sounds like...

The seating stem is fragile. Set the die on a solid base (vise) and hit the top of the stem holder sharply. Rest a small ball peen hammer on top and hit with another hammer. The double hit does wonders. This technique works very well on rusted brake drums. Let us know the results.

Does your scale weigh with accuracy less than 1/2 of 1% ?? if not, this thread is a monumental waste of time. A Kg is 2.2046 lb.

I have read best loads for pressure and velocity consistency and therefore accuracy are achieved with a proper powder charge that fills the case without being compressed. A nearly full case keeps the powder in a uniform column above the primer resulting in very uniform ignition. A 2/3 full case...

Jerry, You said you did not neck turn the brass first. With a .261 neck you should have necks about .0082. New Lapua brass has necks about .0125 to .013. Perhaps the crush you feel is the thick necks being forced into the tight neck chamber. Did you check case headspace before and after...

How do you " adjust" headspace with new brass?? If these are new 220 Russian cases for a 6PPC, I have noticed a lot of headspace using a case HS gage because the shoulder needs a lot of blowing out to fully fireform. This may cause the case to move forward so far on contact from the firing pin...

Steve, I didn't realize Redding S die used an expander ball. The expander will open the neck to the size of the ball regardless of the bushing size. It also overworks the brass and stretches the neck upward making cases longer. Wilson dies do not use an expander so you get what the size of...

Steve, As Bob G pointed out, a loaded round with a.009 neck must be exactly .261 with a .243 bullet (6mm). Are you measuring in 3 different places with ball mike as you rotate the case? When you neck turn this brass do you have a close fitting mandrel? If not, you can get erratic cutting and...

Vern, I agree. All my Lapua brass springs back less than .001 after firing or after neck sizing. BTW, Lapua 220 brass is factory annealed. Waiting to hear from Steven.

Steve, You must have neck turned this brass to .008 to have a loaded round of .259. Normal springback should give you a neck of .261 as Boyd said. The .257 bushing should give you grip on the bullet that you cannot turn with your fingers. I would guess your brass is thinner than .008. Are you...

Factory rifles that can shoot 1/4 MOA groups don't have triggers that "suck". They have safe, reliable adjustable triggers that work well IMHO. These are not after market benchrest triggers.

I shoot a Sako 6PPC, a Cooper 22-250 and a Cooper MIV. I've won the last 4 events entered in Factory Benchrest with the Sako. The Coopers both shoot sub 1/2 MOA with several 1/4 MOA groups. IMHO these companies produce the most accurate "out of the box" rifles available. Politics aside, the...