Thread: 7mm SAUM, WSM, Blaser Magnum, Rem Mag and 284 Superpig Discussion

Does the empty brass chamber ok ? Then won’t chamber with pill ? What’s the neck diameter before and after loading a pill? Do you have a way of measuring the coal to lanz like Hornady case and gauge ? What part of country are you?

Empty brass goes in mint but soon as you load a pill it is a major struggle or will not go at all. Will measure before and after tomorrow. No way to measure coal to lanz but seems to be more of a neck issue than a throat issue as no marks on pill from rifling. I am in Auckland.

iirc they used the reamer with a .317 neck dia. Is that correct?

If so you'll need to neck turn your brass, same as mine

Unsure what the neck was chambered too as gunworks just swapped the barrels over. Will look into neck turning as never done that before. Cheers bro

My 284 loads measure .314 - 315 with Nosler brass and 0.315-316 with Norma. Haven’t measured any Winchester brass but have some so can check

@GWH looking at the cost of a neck Turner it would be cheaper for me to have it rechambered!

Originally Posted by superdiver

@GWH looking at the cost of a neck Turner it would be cheaper for me to have it rechambered!

Yes and a lot less ongoing hassle

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Pretty sure my loads with winchester brass measure about .314 - .315

Originally Posted by superdiver

Well this is not ideal. Run the brass through a fl resizing die(brass happily Chambers) but as soon as I load up a round it will not chamber at all. Anyone have any ideas???? Losing my mind at the moment

Make sure you havent screwed the seating die in to far. It can crush the case causing a bulge at the shoulder. Colour a round with the marker pen , chamber it, the scratches should show where the case is binding.

Have you check the primers are seated properly? I had the same thing happen to me recently. Sized they fitted but loaded they didn't. Turns out a new cartridge to me and even though same brand of brass as I use in other calibers my seater was leaving them a couple of thou proud. Adjusted the seater and problem gone. Hard to see by eye but putting a straight edge across the base showed it up. Since I was only bumping the shoulder back a couple of thou it created a problem as the primer took up more room than there was so a tight on close bolt

@sneeze we crushed the first round and then backed it right off so that is not the issue we think. @r87mm will check when I do some more loading mid week(have to do it at a mates and he is not local to me) but don't 5hink that is the issue. Seems more to be with the neck of the brass

So went and saw @chainsaw who was good enough to help me out. Looks like I need to ream the neck again ffs. Loaded ammo measuring 0.3155" would not chamber so think I will get it opened up to 0.317 or 0.319. Any thoughts or suggestions welcome.

Originally Posted by superdiver

So went and saw @chainsaw who was good enough to help me out. Looks like I need to ream the neck again ffs. Loaded ammo measuring 0.3155" would not chamber so think I will get it opened up to 0.317 or 0.319. Any thoughts or suggestions welcome.

If your not gonna neck turn brass then i’d say go .319 pretty sure mine is .318 running standard winchester brass.

@Monk @Sako85 how do you guys find those 178 eldx go up close? Mate is about to build a 20" 300wsm like your ones and he is sold on that bullet so trying to get info for him. Cheers

Originally Posted by superdiver

@Monk @Sako85 how do you guys find those 178 eldx go up close? Mate is about to build a 20" 300wsm like your ones and he is sold on that bullet so trying to get info for him. Cheers

The closet deer I have shot with 178 eld x was a Stag at 360 yards, and it sacked him, I haven’t used them enough to say how they go up close, sorry not much help I know.
I mainly run 168 Amax at various ranges which i have been happy with in the 300 wsm and 308 , but have since upgraded the scope on the wsm and am about to run 208 Amax and or 190 VLD Bergers

Cheers