6gt brass

[rich44]

Im having a 6gt built by Jon Beanland which should be done shortly what is considered the best brass for the 6gt.
Midway has Lapua, Peterson and Alpha in stock

 

[Clancy]

It’s hard to say which is “best” but I’d figure out what your chamber’s neck diameter is and go from there. I had to turn Alpha for one of my Beanlands and did not for another. Figure that out first.

 

[urbanrifleman]

Im having a 6gt built by Jon Beanland which should be done shortly what is considered the best brass for the 6gt.
Midway has Lapua, Peterson and Alpha in stock

The best brass is Lapua.

I mean, there will be other opinions, but when the rubber meets the road, if Lapua makes it, it's probably the best. No matter the subject.

 

[FeMan]

All three are probably good but Lapua is the standard by which all others are evaluated. If it is available, Lapua is what I would go with.

 

[STOMP442]

I have run Alpha in the last three that I have built and have been very well pleased with it.

 

[mdram]

have 8 reloads on my alpha, would buy again

 

[Clancy]

The best brass is Lapua.

I mean, there will be other opinions, but when the rubber meets the road, if Lapua makes it, it's probably the best. No matter the subject.

Shot a lot of Lapua 6 GT brass?

Didn’t think so.

I’m a huge Lapua fan but their new GT leaves a lot to be desired.

 

[urbanrifleman]

Shot a lot of Lapua 6 GT brass?

Didn’t think so.

I’m a huge Lapua fan but their new GT leaves a lot to be desired.

I haven't, but I have lots of customers who have. I certainly haven't heard any complaints from Lapua brass in any cartridge. Including 6gt.

I have heard lots of complaints about Alpha, and the Peterson 6br brass being completely different case capacity.

People seem to like the Peterson 6gt.

I did have one customer that seems to be having a problem with his sizing die from another company not matching the chamber. The Lapua 6gt out the box shot fine, but his sizing die did something to it to create pressure after that. Still working on that.

 

[Clancy]

I haven't, but I have lots of customers who have. I certainly haven't heard any complaints from Lapua brass in any cartridge. Including 6gt.

I have heard lots of complaints about Alpha, and the Peterson 6br brass being completely different case capacity.

People seem to like the Peterson 6gt.

I did have one customer that seems to be having a problem with his sizing die from another company not matching the chamber. The Lapua 6gt out the box shot fine, but his sizing die did something to it to create pressure after that. Still working on that.

That probably sounded hostile, but yea, that’s the exact same thing I’ve seen. I don’t think it’s the die. I think it’s metallurgical. Should have known better than to buy “first gen.” I’m way down in dasher territory with a lot of pressure problems.

I think my fixes are A) ask them for a newer lot of brass after a year or so and B) order a tight neck reamer and turn Alpha. If Alpha brass had better neck concentricity it would be untouchable.

 

[Nevned]

Im having a 6gt built by Jon Beanland which should be done shortly what is considered the best brass for the 6gt.
Midway has Lapua, Peterson and Alpha in stock

I have four firings on 200ea. Lapua 6GT brass. No issues. So far I have been very pleased.

 

[tdogg]

I have 3 firings on my 300 pieces of Lapua brass. I can't say I'm uber impressed with my SD's but that might not be brass related but it may be? My accuracy is stellar shooting 0.1 - 0.15 mil.

I haven't really had any issues with the brass but I'm having a weird extraction issue on a small number of them? It's like a clicker but only happens at the very last 1/4 inch of the bolt throw when extracting. I'm not sure what is going on. I need to see if it still happens now that I'm rollsizing the base.

I purchased them because they are the only one with small flash holes and I thought that was important with these small high pressure cartridges and primer cratering.

Cheers,
Toby

 

[DHD]

I have 3 firings on my 300 pieces of Lapua brass. I can't say I'm uber impressed with my SD's but that might not be brass related but it may be? My accuracy is stellar shooting 0.1 - 0.15 mil.

I haven't really had any issues with the brass but I'm having a weird extraction issue on a small number of them? It's like a clicker but only happens at the very last 1/4 inch of the bolt throw when extracting. I'm not sure what is going on. I need to see if it still happens now that I'm rollsizing the base.

I purchased them because they are the only one with small flash holes and I thought that was important with these small high pressure cartridges and primer cratering.

Cheers,
Toby

Peterson 6mmGT is small flash hole.

I have both Alpha and Peterson. I will typically use Lapua for anything I shoot but this time I got the Alpha when I bought the rifle, so Alpha was it for me at first. I bought 50 pieces of Peterson to try as they have the small flash hole and I have never used Peterson before. Single digit sd's for both brands. Using the same load and Peterson brass is faster in my Brux 30".

In the 6mmGT we have Alpha, Peterson, and now Lapua brass available. Now that is one heck of a cartridge. I do realize some other brands might make brass for it, but I can't remember who they might be.....

 

[rich44]

I ended up ordering 100 each Lapua and Peterson 6gt brass.
I use Lapua for 223, 6br, 22-250AI and make my 6mm AI from Lapua 30-06 brass, just was curious about other brass I will probably try the Alpha also thanks for all the replies.

 

[gqhoon]

I have between 15 and 20 firings on my Alpha GT brass. Annealed every firing, no issues.

 

[Ilmo]

i believe lapua 6 gt brass has less powder capacity than the gap(hornady) brass I had used.... anyone have thoughts about powder capacity of Lapua vs peterson, alpha?

 

[ToddKS]

I have run Alpha brass/Alpha Reamer (.120 freebore) on my last 5 barrels. No issues.

 

[LCazador]

I have 3 firings on my 300 pieces of Lapua brass. I can't say I'm uber impressed with my SD's but that might not be brass related but it may be? My accuracy is stellar shooting 0.1 - 0.15 mil.

I haven't really had any issues with the brass but I'm having a weird extraction issue on a small number of them? It's like a clicker but only happens at the very last 1/4 inch of the bolt throw when extracting. I'm not sure what is going on. I need to see if it still happens now that I'm rollsizing the base.

I purchased them because they are the only one with small flash holes and I thought that was important with these small high pressure cartridges and primer cratering.

Cheers,
Toby

Do you have .062" firing pin and bolt hole? I had a friend with erratic groups and that clicker thing till he bushed the firing pin hole and went from the large firing pin size to the small firing pin. You can try a magnum primer. I'm shooting both Lapua and Alpha brass and Alpha turns in better groups.

 

[tdogg]

I'm not shooting hot enough to crater primers at all. I'm running a ARC CDG action and they sent me a new firing pin to run with it and my 6GT. I assume it has a tighter fit vs the standard pin? I didn't measure it compared to my original but my original was the MPA Elite configuration of the CDG which may already have had the tighter pin.

I run CCI450's in all my loads in both the dasher and 6gt. My rile really likes the Barnes Matchburner 112gr and H4350. I'm running about 2825 fps.

I shot my second ever PRS match this weekend and only noticed it once (I think, it was on the clock). This was the 3rd firing of that batch of 100. I'll have to confirm in practice it is real.

Cheers,
Toby

 

[LCazador]

I'm not shooting hot enough to crater primers at all. I'm running a ARC CDG action and they sent me a new firing pin to run with it and my 6GT. I assume it has a tighter fit vs the standard pin? I didn't measure it compared to my original but my original was the MPA Elite configuration of the CDG which may already have had the tighter pin.

I run CCI450's in all my loads in both the dasher and 6gt. My rile really likes the Barnes Matchburner 112gr and H4350. I'm running about 2825 fps.

I shot my second ever PRS match this weekend and only noticed it once (I think, it was on the clock). This was the 3rd firing of that batch of 100. I'll have to confirm in practice it is real.

Cheers,
Toby

Sounds like you're ahead of it. Well done!

 

[Steve Donlon]

I have 300 pieces of Lapua 6mmGT brass also and have been prepping them to load and they all have the same dimension after I neck size, Redding neck sizing die, or if I run a PMA neck turning mandrel through them as they did from the box doing nothing. Some of my other brass is different from neck sizing to mandrel and from the box. So I just ran them through the mandrel after chamfering the inside of the neck and they are ready to go. So far anyway. Waiting a week or so on my build also.