Lapua brass
- Thread starter GA Hunter
- Start date
Don't let anybody tell you there is no difference because there is. Ask any benchrest shooter that's been doing this for years. The gold stuff lasts longer. You can typically FLR the gold box cases a lot more before they fail than the blue box stuff. I have thousands of new gold box brass in 6.5x47, 220 Russian and 6BR and when I neck up the 2 bigger cases with the blue box stuff, I usually get 2 that split, never had one split with the gold box stuff.
hogpatrol
Gold $$ Contributor
That's interesting. I have some that are .267, blue box.
JEFFPPC
Gold $$ Contributor
Back when the brass changed I talked to the importer who brings the brass in to the USA. He told me Lapua brass did not meet what ever the specs are as set by some international engineering association so they where going to remove their stamp of approval for Lapua brass because it was too thick.. I did not hear this from some one, I spoke to the gentleman on thephone. He said they changed the brass to meet the approved specs. I have used about 1500 pieces since with no problems. I fire form by seating the bullet long.
Grimstod
Machinist, Designer, and Shooter.
This always gets quoted all the time but I am skeptical of it. One of the only times you will see me skeptical of anything on Accurateshooter.
Your right, there are a few people who say this is a bogus test. How did they come to that conclusion? Were they there? I highly doubt it. There is always someone out there who questions the validity no matter what it is. You could prove it right in front of them and they will still say it's not true. I guess that's what makes the world go around.
That and all the "Internet Know-it-alls" who frequent these sites.
6mm BR Norma neck thickness was reduced around the time that Lapua introduced the blue box packaging. This was covered in the forum in some depth a while ago and is established fact. The reason was simple - if the older spec stuff maxed out on tolerances, it could just conceivably have exceeded the maximum CIP neck OD value for 6mm BR Norma ammunition once bullets were seated.
The change was a pain for people who'd long specified no-turn chambers that optimised clearances for gold box 6BR brass as the blue box variety could add another couple of thou' overall clearance, hence lots of posts asking for supplies of the older variety. People have long since changed chamber specs to suit the newer brass dimensions, so it's much less of an issue now.
So far as the CIP (European equivalent of SAAMI) goes, the idea that it would remove any stamp of approval from Lapua is risible. As a responsible manufacturer, and a very tight quality control conscious one, Lapua ensures that any out of spec stuff doesn't get onto the market and junks it. This is an expensive and very undesirable situation for any manufacturer, so it's understandable why the company took remedial action.
I've not heard of any spec change on any other case.
The change was a pain for people who'd long specified no-turn chambers that optimised clearances for gold box 6BR brass as the blue box variety could add another couple of thou' overall clearance, hence lots of posts asking for supplies of the older variety. People have long since changed chamber specs to suit the newer brass dimensions, so it's much less of an issue now.
So far as the CIP (European equivalent of SAAMI) goes, the idea that it would remove any stamp of approval from Lapua is risible. As a responsible manufacturer, and a very tight quality control conscious one, Lapua ensures that any out of spec stuff doesn't get onto the market and junks it. This is an expensive and very undesirable situation for any manufacturer, so it's understandable why the company took remedial action.
I've not heard of any spec change on any other case.
Yeah, don't even let LAPUA tell you there isn't anything different, they only made it.
Well the internet does not know it all. The info was given to a person questioning the very same interest brought up on this forum. I couldn't tell you either way. I just saw the question and decided to check it out. I do own cardboard gold boxes and plastic blue. Not being a competitive shooter really, I don't check for thickness. At times i've sorted for case weight but not played with much else. Personally I probably never will but I know it does matter to people so I'll butt out of something I only checked into one time. You comp guys certainly know if it's different or not.
Ya that's like Leupold telling you that there wasn't anything wrong with your scope that you sent back. YA RIGHT! That's also like Federal telling you that their 205M primer is better and more consistent than their regular 205. We all heard of the Federal rep saying that was a crock of shit.
I knew a guy who owned a Rolls once. It broke down and he called the dealership in NJ someplace. They had a mobile team fix his car on the side of the road before he could get back to it (no cell phones then) and then simply denied that a Rolls could ever stop running. Sometimes a company will deny the obvious to simply save face. Not saying Leupold would do that, but why would it be in their own best interest to admit that their product sucked? Fix it, deny it was broken and send it back. You get a repaired or working scope and they can deny it was ever broken. Win Win. What does Lapua gain by telling you that gold and blue boxes of their product are different. IF they did that, they admit to making something less than perfect and their reputation tanks.
Don't know about the gold box but a member did x-ray analysis on blue box and brown box. There was a difference in alloy composition. Do they still make brown box? At the Super Shoot I only remember seeing blue box for sale.
http://www.accurateshooter.com/technical-articles/x-ray-spectrometry-of-cartridge-brass/
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