28 nosler issues

[GoBears16]

So I’ve got a serious problem. I started load development with RL 33 and 195. I started at 85gr-87.4. I started seeing pressure around 87.1gr. My best consistent loads were at 85.2 with avg speeds 3050... gun was shooting great for 50 rounds... fast forward to resizing and loading same powder charge I’m getting extremely heavy bolt lift and I blew a primer.

I’m using a new jug of RL 33. Would this cause that much of an extreme in pressure? In my initial load I stopped at the first sign of a heavy bolt life which was 87.1gr. Now at 85.2 I’m blowing primers and increasing FPS by 100+.

Could a carbon ring be the problem? I don’t have a bore scope so I can’t look. How do you best remove it? Could the powder variance be that big?

I’ve got a big hunt coming up first of November and I’m stressing this won’t be a reliable gun. Help needed.

 

[Nightraider]

Walnut Creek, Ohio?

So I’ve got a serious problem. I started load development with RL 33 and 195. I started at 85gr-87.4. I started seeing pressure around 87.1gr. My best consistent loads were at 85.2 with avg speeds 3050... gun was shooting great for 50 rounds... fast forward to resizing and loading same powder charge I’m getting extremely heavy bolt lift and I blew a primer.

I’m using a new jug of RL 33. Would this cause that much of an extreme in pressure? In my initial load I stopped at the first sign of a heavy bolt life which was 87.1gr. Now at 85.2 I’m blowing primers and increasing FPS by 100+.

Could a carbon ring be the problem? I don’t have a bore scope so I can’t look. How do you best remove it? Could the powder variance be that big?

I’ve got a big hunt coming up first of November and I’m stressing this won’t be a reliable gun. Help needed.

 

[trap]

what brass are you using. I had the same problem with one lot number of nosler brass . different lot number same load no issues.

 

[GoBears16]

what brass are you using. I had the same problem with one lot number of nosler brass . different lot number same load no issues.

im using nosler brass.... I’m going to throw them all out and start with new brass and new lot of powder... I’ve cleaned my gun after every 30-40 rounds. So I can’t believe I have a carbon ring build up

 

[GoBears16]

Walnut Creek, Ohio?

Walnut Creek Ca

 

[uncle-buck]

What kind of velocities are you getting with the new lot of powder?

 

[GoBears16]

What kind of velocities are you getting with the new lot of powder?

3150-3170 initial load development with same powder but different lot was 3030-3050

 

[trap]

I was using retumbo only change I made was brass

 

[uncle-buck]

3150-3170 initial load development with same powder but different lot was 3030-3050

That's telling you that the new lot of powder is probably. hotter.

Reduce the powder charges by 10% and work back up to an accuracy node that is below the point where you start getting pressure signs

No need to throw away the powder or cases.

 

[venatic]

Reloder 33 was very temperature sensitive for me. Loads fine when it was 70-80f blew primers once temps hit 90’s.
Went to N570 and have not looked back.

 

[uncle-buck]

So I’ve got a serious problem. I started load development with RL 33 and 195. I started at 85gr-87.4. I started seeing pressure around 87.1gr. My best consistent loads were at 85.2 with avg speeds 3050... gun was shooting great for 50 rounds... fast forward to resizing and loading same powder charge I’m getting extremely heavy bolt lift and I blew a primer.

I’m using a new jug of RL 33. Would this cause that much of an extreme in pressure? In my initial load I stopped at the first sign of a heavy bolt life which was 87.1gr. Now at 85.2 I’m blowing primers and increasing FPS by 100+.

Could a carbon ring be the problem? I don’t have a bore scope so I can’t look. How do you best remove it? Could the powder variance be that big?

I’ve got a big hunt coming up first of November and I’m stressing this won’t be a reliable gun. Help needed.

Which bullet are you loading?

 

[Dusty Stevens]

Got good dies? You need to clean way more often than 40 rounds and be sure to use a bronze brush and a good solvent like butchs

 

[GoBears16]

Which bullet are you loading?

loading the 195’s

I’ve heard RL33 is very dirty and non temp stable. I’m thinking of dropping to 180 eldms and h1000 for temp stability. What’s your guys’ thoughts?

 

[LA50SHOOTER]

loading the 195’s

I’ve heard RL33 is very dirty and non temp stable. I’m thinking of dropping to 180 eldms and h1000 for temp stability. What’s your guys’ thoughts?

My experience with RL33 is that its no dirtier (or cleaner) than really any other slow burning powder and I've ran it in a 28 Nosler up through a 375 Chey-tac Imp. I'm on my 3rd 8 Lb. jug and there is some (not a lot) variation in lot No.'s. - I did all my load work-ups in the 90+ degree summer heat in So. central La but I believe that it is as stable as any other slow burner & maybe better than some.

- In the 34" barrel 28 Nosler I've worked with I ran 180 gr. Berger VLD's and I chose a low node (3220 fps & 56 Kpsi using Q/L)) and had round primers throughout. - In the 28 Nosler that I'm shooting I've not worked with any other powder than RL33 as it proved to be so accurate. And I was running Nosler brass.
- You may want to try the ADG Brass which would warrant re-work-up of your load.

- Ron -

 

[STOMP442]

I just finished my first load work up with R33 in a 28 Nosler. The rifle is a Owens Armory rifle with a defiance action and 26" Proof barrel. Retumbo is nonexistent around here and usually, my go-to powder with this cartridge and the 195s. Last week I started at 85gr of R33 and worked up to 87.5gr with the 195s .025" thou off the lands where I started to see a slight ejector mark. 87.0gr showed the most promise with a 3/4" group. I went back today for a seating depth test and at .045" off the lands I have a 3 shot group I can cover with a dime. Temps are high 80s today and low 90s last week. I didn't seem to encounter any pressure spikes or other issues. Next, I will run them over the magneto and see how the load holds up downrange. So far my first experience with R33 has been nothing but positive.

 

[mikecr]

Powder lot can be contributing. Brass fit to chamber can as well. You said it shot how you like for 50 rounds, is that about when brass was fully fire formed?

 

[GoBears16]

So I did a deep clean and got ride of the carbon ring build up. Reloaded back to 85.2 gr RL-33 and its back down to 3040-50 fps which for this barrel seems to be the lower node. Shooting sub .5 moa and ES of 12. Thanks for all the help. Looks like I’ll have to clean throughly ever 20-30 shots. I don’t mind if accuracy stays there

 

[Rdlningcltchdmpr]

So I did a deep clean and got ride of the carbon ring build up. Reloaded back to 85.2 gr RL-33 and its back down to 3040-50 fps which for this barrel seems to be the lower node. Shooting sub .5 moa and ES of 12. Thanks for all the help. Looks like I’ll have to clean throughly ever 20-30 shots. I don’t mind if accuracy stays there

A really good product to remove carbon/copper fouling is remington 40x borecleaner.