Peterson CTG Co. 6mm BR Norma Brass - Looking for Feedback from Users

[LA50SHOOTER]

I have 200 pieces, and out of the box they were all within 1.3 grains IIRC, and 198 of them within 1.1 grains.

They seem to be around a grain less water capacity vs lapua, and Ive found it seems to take ~.6-.7 grains less powder from your go to lapua case load to get it to shoot again.

Fire form load is usually 29.6 gr h4895, and with Peterson I had to drop it to 29.1 gr h4895. I usually shoot around 31.14 gr of rl15 with 105 hybrids in a formed case br-improved, and I found it to be happy around 30.44 grains.

I have two test pieces that I have fire formed and +9 firings that I left the standard lapua load in them (31.14 grains) just to see how it might affect case life. They primer pockets are still nice. Seems to be very nice brass to me.

Mike, Again - Another very informative post with great information. - I appreciate the information on your case capacity checks as well as the load comparisons between Peterson & Lapua brands and the stress test that you performed.

Much appreciated !! - Ron -

 

[mikeeg02]

Mike, Again - Another very informative post with great information. - I appreciate the information on your case capacity checks as well as the load comparisons between Peterson & Lapua brands and the stress test that you performed.

Much appreciated !! - Ron -

The water weight is from memory, but the load reduction is definitely correct.

It seems every lot of lapua 6br that I have gotten, AKA the "gold standard", for me has had 5 grains of variance across 100 pieces. Thats seriously frustrating. My alpha 260 was ~1.1 grains for 200 pieces, my ADG SAUM brass was under 3 grains for 200 pieces, and once neck turned closer to 2 grains. Everyone tells me "I must of had a bad lot of lapua" but it seems every box I open is that way.(and I have had 4 or 5 lots by now) The Peterson is considerably more consistent dimensionally, and quite honestly unless for some reason it disintegrates before the season starts this year, I plan to shoot it in the 1k aggregates at Williamsport and Reade, and wont care to buy another piece of lapua 6br brass.

Thats just my opinion. Plenty of people, including myself have had good luck with lapua 6br, but I just dont think the tolerances are there anymore. And I think Peterson has created a fantastic product.

 

[LA50SHOOTER]

The water weight is from memory, but the load reduction is definitely correct.

It seems every lot of lapua 6br that I have gotten, AKA the "gold standard", for me has had 5 grains of variance across 100 pieces. Thats seriously frustrating. My alpha 260 was ~1.1 grains for 200 pieces, my ADG SAUM brass was under 3 grains for 200 pieces, and once neck turned closer to 2 grains. Everyone tells me "I must of had a bad lot of lapua" but it seems every box I open is that way.(and I have had 4 or 5 lots by now) The Peterson is considerably more consistent dimensionally, and quite honestly unless for some reason it disintegrates before the season starts this year, I plan to shoot it in the 1k aggregates at Williamsport and Reade, and wont care to buy another piece of lapua 6br brass.

Thats just my opinion. Plenty of people, including myself have had good luck with lapua 6br, but I just dont think the tolerances are there anymore. And I think Peterson has created a fantastic product.

Mike, - More Very good information from you. - I have 1000 pieces of Lapua brass in 6mm BR from 3 or 4 lot numbers. - I have only fired 100 pieces from one of the lots and I saw around 2.5 grains variance (after neck-turning & prep) from light to heavy and that lot# was purchased about 3 years ago. The other lots I haven't done anything with them yet and those lots have been purchased more recently. - I didn't realize there was as wide of a weight variance until you pointed it out. - So you've alerted be for another factor to watch for. - I don't mix brass lot numbers & I try to treat the lot numbers as a group dedicated for 1 rifle. - Also, my experience with the 6mm BR is that I'm new to it. - The 6mm BRAI I haven't yet had the opportunity to work with (still waiting on the stock to finish up - hopefully Feb. will be done).
5 grains is a wide swing IMO opinion and I've had 200 round lots of Lapua brass in some big calibers (338 Lapua & 300 Norma) that haven't had that much variation. - I'll surely be on the watch for what you have pointed out.
I'm anxious to receive the Peterson brass & hope it is as good as everyone so far has reported. If it's as consistent as everyone so far has reported then I can surely see getting more of it. - I think its excellent when there is more than one choice of upper end brass to chose from.

The information that you guys have provided I'm sure has already saved me a bunch of time right up front before even firing the first shot with the new brass. - Great to have the informative support from you fellow shooters & reloaders.

All The Very Best - Ron -

 

[mikeeg02]

No problem. Glad I/we can help. Hopefully your lapua experience wont leave you as bitter as mine has. Lol

I would just start with the peterson myself. Get your load development done with it and dont look back.

 

[newbieshooter]

Excellent Post with some Very good information Sir,
This is what I've been looking for. - You provided solid information based on results that you obtained in actual testing. With some solid information. - This presents a positive outlook for me and the testing that I'll be doing. - I hope that I'm able to get similar results.

Many Thanks - Ron -

You're welcome Ron!

My experience with recent lots of Lapua brass (within the past 2 years) in terms of weight variance has been favorable. Usually within 2gr with most within 1gr - these are weighed prior to turning to reduce the variance from neck turning.

As noted in my writeup, there were a few Peterson cases that were outliers. When I wrote Peterson about these (outliers) - they responded that even though they weigh differently - the internal volume should be consistent.

YMMV.

 

[billslatteryjr]

Newbieshooter do I understand you correctly in that your Peterson unturned loaded rounds measured pretty close to a uniform .268 at the neck? While you need to turn your Lapua brass so as to have .268 loaded rounds? So the Peterson brass out of the box is around .001 inches thinner per side at the neck than Lapua out of the box before neck turning?
Thanks.

 

[newbieshooter]

Newbieshooter do I understand you correctly in that your Peterson unturned loaded rounds measured pretty close to a uniform .268 at the neck? While you need to turn your Lapua brass so as to have .268 loaded rounds? So the Peterson brass out of the box is around .001 inches thinner per side at the neck than Lapua out of the box before neck turning?
Thanks.

Sorry about the confusion - I should clarify/update my post.

My no turn chamber has a .272 neck. Peterson brass out of the box has loaded round neck diameter of .2680.

My tight neck chambers have a .268 neck. I use Lapua brass for these barrels. I turn Lapua necks to fit these chambers. Loaded rounds measure .2655.

 

[beemanjohn]

When I first got out of school, my first full time job was working in a factory that made copper fittings. After 13 years the company decided to just pick up the whole works and move it to Mexico. (to save money, or so they thought) I ended up in a better place, but a lot of the guys who worked there never found another job that was half as good as the one they had at that factory.
It really pains me to hear guys complain that a quality product made right here in America costs a couple pennies more than the same product made over seas. This sport is expensive to say the least. You will spend those few cents the first half dozen rounds down range. Anytime I get the chance to buy something made in America that is the same or better than the over seas stuff for a reasonable price, I will buy it.

 

[LA50SHOOTER]

Anytime I get the chance to buy something made in America that is the same or better than the over seas stuff for a reasonable price, I will buy it.

A-Men Brother !!! - MAGA !!!

- Ron -

 

[group therapy]

When I first got out of school, my first full time job was working in a factory that made copper fittings. After 13 years the company decided to just pick up the whole works and move it to Mexico. (to save money, or so they thought) I ended up in a better place, but a lot of the guys who worked there never found another job that was half as good as the one they had at that factory.
It really pains me to hear guys complain that a quality product made right here in America costs a couple pennies more than the same product made over seas. This sport is expensive to say the least. You will spend those few cents the first half dozen rounds down range. Anytime I get the chance to buy something made in America that is the same or better than the over seas stuff for a reasonable price, I will buy it.

hear ye- hear ye!!!! sound advice here folks!!!

 

[dgeesaman]

I got my first batch of Peterson 6BR yesterday from Brownells and initial impressions are very good. Necks are .0128/side and have perfect VLD style chamfers on each one. My last two batchs of Lapua had up to .0005 neck thickness variance. Primer flash holes were all perfect and had no visible burrs on the inside.

Packaging is a fully functional hinge-top ammo box. Each piece was flawless.

So far it seems better than Lapua, made in USA, at lower cost.

Time to see how it shoots and holds pressure.

 

[dgeesaman]

After fireforming and cleaning the brass, I weighed 25 pieces on my scale. Max 135.3 gr, min 133.7 gr. 80% of them were in the 134s. I uniformed the primer pockets with my Holland uniformer and they were extremely consistent.