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The Op may have 2 issues with his military brass. First, the primer pocket might be too much conical, second, the primer pocket bottom radius might be important, both making thet he can't seat properly. One must remember that a primer pocket is put in shape by the hammering of a punch while...

Thank you for your answer Al, but the link "BC stability ...". does not work (i suppose it's a link). Here below a little experience I was able to reproduce 3 times. I am shooting 660 yd. Got ammo loaded full throttle, with either N140 or N150, all other things beeing equal. Shot 10 of a...

Kidding ?? or you don't think a "bad" stability could have an influence on ACTUAL "in flight" ballistic coefficient, therefore changing the bullet path ??

Al, Is this that thread you are talking about ? http://benchrest.com/showthread.php?66948-A-Tale-Of-Three-Chrony-s Thanks.

One case only trial Hi Philippe, You may wish to pick a single case, anneal it, check length, headspace and all, then shoot it five time in a row. This could give an idea of the chrono variation. Getting the same StdDev or ES again would point to the chrono. You will of course warm the barrel...

Got some pairs of Dewey for 30 years. Coating is almost as new. Bronze or copper insert at the working end are tarnished in some way. Using MrHomeMade "plactic" rod guides with "plastic" inserts (PP, Delrin). Almost no clearance in between rod/insert:guide. Only Dewey drawback that comes to my...

Sorry to say, with all due respect, that I do not agree. First, a rifling button does match every area in the lands and grooves almost perfectly. But anyway, Whatever you carry under load in that barrel and how ever you carry it inside that barrel, should it contains something harder than the...

Yep, you can talk about "Ze Vaxxx". That's also a lot of funny conversations !!!

Some kind of an Eye Bleach ??

I will agree the steel brush helps me to get rid of wad fouling in my chrome lined 12 gauge barrel. All in all, chrome layer is much harder than the steel brush which anyway I doubt to be steel and guess is iron wire. Anyway I will never run something as hard or harder than the barrel material...

Sorry, I apologize, it appears I was not clear at explaining what I mean and my guess about the cause of my issue at the time I was using the Wilson case trimmer with a neck reamer. I did not point at case neck not being straight relative to the case body, aka "banana case". What I wished...

Hi Stephan, As far as I know, there is a guy in France, Alain Beaumont, and there is a guy in Spain, Herr Bezas or Besas. Alain purchased all Jean Claude Gros tooling when Jean Claude decided to stop making bullets, and I heard here and there than both Alain's 6 and 30 were excellent. I did...

You are welcome. I am not that sure of the mean of "arbor", anyway, here is how I proceed with drill press or lathe : First, I am using some old fashioned dual diameter mandrel on old Sinclair's neck turning tools. With the drill press : The drill press offers wayyyyyy enough push...

@10ring : My guess also is that you are facing some "restriction" of the internal diameter at the newly formed neck/shoulder junction. That was very well described by Al just above. In that very move from 220R to 6PPC, fire forming the 220 first with fast pistol powder and wax plug before...

Thanks for sharing. THIS is an interesting and nice object. Love the "thread type" locking system, looks like downsized field artillery !!

Thanks. If I remember well, he does not export jackets. I am in France.

Dears, Have been cleaning 300 J4 .30 jackets today. I use some kind of "RCA clean" that concists in 3 successive bathes of acetone, 20 minutes exposure per bath with 3 shakings during each of the 20 minutes long bath. I am very much surprised to see such an amount of dirt in bathes 1 and 2...

Are you using a 6.5AI bushing FL sizer without any bushing in place for this operation ?

Any unexpectedly strong effort with brutal release when the 280AI case neck just enters the 6.5AI tool shoulder-neck base area ?

Will say the same. Pushing an AI shoulder is hard. Even if one "just" want to shoulder bump for headspace. I still have somewhere a Neil Jones arbor press die, neck sizing + shoulder bump, designed for a 250AI. As some Gentlemen would say here, it'll never work, and, effectively, had never...