.338 Win Mag-RL19-Nosler 265...IS IT GONNA BLOW UP!!!!

[20VarTarg]

Ok, so I just got done charging up some rounds to test and before I seat the bullets I wanted to check with all you guys. The Nosler Book has minimum charge of 71 grains and Max charge of 75 grains. I keep comparing book after book after book and now I'm just all confused. Is Nosler's info online legit??? She seems to me above max capacity!!!! Anyone been playing around with this combo???

 

[whatwind?]

That does seem high, I am 71 gr re 17 with 215 in mine

my Nosler book says 73gr max re 19 for 250’s

 

[20VarTarg]

That does seem high, I am 71 gr re 17 with 215 in mine

It seems totally wrong to me.....Alliant doesn't have data on anything that is 265. But for their Speer 250 SP with RL-19 they show 72 grains.
I seriously don't know what to make of it. The 265 is exceptionally long and maybe that changes things. I am way longer then the recommended C.O.A.L. So I have more case capacity but I'm still a bit worried about it.

 

[Bc'z]

If its nosler bullets and nosler load data.
Start at the lowest charge and work up.
Keep eyes peeled for preasure.

 

[whatwind?]

It seems totally wrong to me.....Alliant doesn't have data on anything that is 265. But for their Speer 250 SP with RL-19 they show 72 grains.
I seriously don't know what to make of it. The 265 is exceptionally long and maybe that changes things. I am way longer then the recommended C.O.A.L. So I have more case capacity but I'm still a bit worried about it.

It is, 69-73 is what my book says for 250’s

 

[20VarTarg]

It is, 69-73 is what my book says for 250’s

That's what my book says too for the 250's. That is my Nosler Book. However the new(er) 265 isn't in my book. So I went to there website and got the data from there.

 

[20VarTarg]

If its nosler bullets and nosler load data.
Start at the lowest charge and work up.
Keep eyes peeled for preasure.

It is Nosler Bullets and Nosler Data from their website. My starting charge was 71.5 on up to 74 in .5 increments.

 

[Adam in WI]

Tie it to a tire and put a string on the trigger?

 

[Bc'z]

It is Nosler Bullets and Nosler Data from their website. My starting charge was 71.5 on up to 74 in .5 increments.

Just keep your eyes peeled and you should be fine.
Keeping in mind the thier chamber n barrel is different than yours.
Prayers dont hurt!!

 

[20VarTarg]

Tie it to a tire and put a string on the trigger?

Adam, that thought has actually crossed my mind. LOL

 

[tom]

Here is a screenshot of the same data you're asking about. 250s above 265 below. The rl19 data is the only comparable powder where the 265 data list higher charge weights. I would call them and inquire before proceeding. I feel there's a decent chance that their rl19 data may be in error on one or the other.

Tom

 

[20VarTarg]

Here is a screenshot of the same data you're asking about. 250s above 265 below. The rl19 data is the only comparable powder where the 265 data list higher charge weights. I would call them and inquire before proceeding. I feel there's a decent chance that their rl19 data may be in error on one or the other. View attachment 1150723

Tom

YEP.....that's why I was concerned. I think at 71.5 starting load I'll be alright but that's probably damn near the top. I understand a totally different designed bullet but it's still pretty sketchy to say the least.

 

[20VarTarg]

My COAL is also 3.5000 so I have more room in the case. They feed just fine from my magazine and that puts me .020" jump to the lands. I have literally a 3 hour window in the morning before the rain and wind shows up to test these loads and my scope isn't even zeroed yet. On a side note.....I purchased the gun second hand and the gentleman gave me his loads he had worked up. I did shoot those last weekend (changed scope since then) and they shot pretty well. It was a Swift A-Frame 250 grain bullet. I actually have a Swift Reloading Manual and the max charge for that bullet was 68 grains. He was loading 71 grains and there are ZERO pressure signs whatsoever. And he was loading the cartridge to book spec for COAL. He was also crimping his loads. Which reminds me I need to order a crimp die to try out.

 

[Orr89rocz]

Seems like the same data trend applies with the lapua. 4831sc for the 250 accubond has a max charge less than the 265 accubond long range. The shape of the bullet may have a different bearing surface length and allow for more powder before pressure. Idk

 

[Zero333]

At 3.500" COAL with a 265 gr bullet that's 1.700" long, shot in the 338winmag with 75 gr of RL-19....

Quickload estimates the chamber pressure somewhere in the vicinity of...





Actual QL estimate is almost 85,000 psi.

68.5 gr is QL's max.

 

[20VarTarg]

At 3.500" COAL with a 265 gr bullet that's 1.700" long, shot in the 338winmag with 75 gr of RL-19....

Quickload estimates the chamber pressure somewhere in the vicinity of...

View attachment 1151110



Actual QL estimate is almost 85,000 psi.

68.5 gr is QL's max.

Well, I would throw your QL program away!!!! I shot 71.5, 72.0, 72.5, & 73.0 at 3.5000". Absolutely no pressure signs whatsoever. I will continue up to max charge that Nosler recommends. I will also say there was no heavy bolt lift. And recoil was mild. I guess Nosler knows what they are talking about after all.

 

[Zero333]

Well, I would throw your QL program away!!!! I shot 71.5, 72.0, 72.5, & 73.0 at 3.5000". Absolutely no pressure signs whatsoever. I will continue up to max charge that Nosler recommends. I will also say there was no heavy bolt lift. And recoil was mild. I guess Nosler knows what they are talking about after all.

A lot of things are at play. Mostly brass capacity, COAL & bullet length.

QL default H20 Capacity for the 338winmag is 86 gr. and has the Nosler 265 gr ABLR at 1.700" long. If I was to correct them with actual measurements, it could make the difference between safe and over pressure. But I've also seen older data with lots of powder that are faster faster than today's lots.

I treat QL like any other manual. There is times where it's right on the money, and at times it's miles away. That's why we always start lower and work up accordingly.

 

[20VarTarg]

I was totally worried with what Nosler had in the book. It did not make any sense whatsoever. Book says COAL of 3.340. So with me loading to 3.500 I knew I would have more capacity in the case...but it's compressed. I could hear all the loads crunching powder when I seated the bullets. That concerned me even more. Luckily, they shot great and had zero pressure signs. And I didn't work all the way up to max yet but will do so very cautiously. I've never played with the QL program.

 

[20VarTarg]

I ended up shooting all loads all the way up to max and never did see signs of pressure. Ended up settling on 73 grains of RL 19 lit with a 215M primer. She shoots clover leafs at 100 yards. I have some loads ready to test out to 600 once the weather gets decent again. Keep in mind my OAL for my rifle is 3.525" which is way longer then book states.