Muller Octomax barrel

[jelenko]

individuals couldn’t contribute in a positive way ( good or bad news //information ) they would just keep to them selves

Right.
And, in this case. seemed to be trying to find things to complain about. Seemed very odd to me.

 

[TRSR8]

He either knows what he is doing or he doesn't.

His question seemed to have little to do with fitting, seemed to inquire based on use , whether they have had any kind of performance.

 

[Evelio]

To VLNBYR and everybody else, my original question on Rimfire Central, and Mt.Boy here, don't have anything to do with how to perform the required work, I have done hundreds of barrels, and know exactly what to do.
My original question was strictly related to the performance of this new rifling process by somebody that has one or knows somebody that does. So far not a single person has responded to the original question.
All the responses have been totally irrelevant to the original subject.
Evelio.

 

[VLNBYR]

Performance is a rimfire variable and is impossible to predict.

 

[longrange223]

What exactly is the Octomax?

 

[Mt.Boy]

What exactly is the Octomax?

It’s a muller 8 gr barrel with different type of rifling compared to the 8mi

 

[doclu60]

Interesting thread. I have a Muller .900 Octomax smithed by Stiller. Problem is for this thread, it has just been sitting in my barrel rack with a tuner on it and has never been installed and fired, so no data.

Now, how important is different rifling profiles as compared to different lots of barrel steel in regards to accuracy, or how well a barrel preforms? Most likely, nothing. We have seen many different rifling profiles over the years, especially from Muller, and it seems that all of them will produce good barrels at one time or another.

As an example, there was a lot of steel that Muller had back in 2020 or so. I had a barrel out of that lot that was comprised of both 8MI and 4MI. Didn't matter what rifling they were, most all of those barrels shot really well. The barrel steel lottery is real. I personally feel that the OP's smith should finish the barrel as he normally would for any given rifling profile. This smith has a very good reputation. If the barrel shoots, it means he did his job. If it doesn't, it means he screwed up, or more likely from what I know of him, the barrel didn't make the grade, or some other influence has caused poor results on the target.

Scott

 

[Mt.Boy]

Interesting thread. I have a Muller .900 Octomax smithed by Stiller. Problem is for this thread, it has just been sitting in my barrel rack with a tuner on it and has never been installed and fired, so no data.

Now, how important is different rifling profiles as compared to different lots of barrel steel in regards to accuracy, or how well a barrel preforms? Most likely, nothing. We have seen many different rifling profiles over the years, especially from Muller, and it seems that all of them will produce good barrels at one time or another.

As an example, there was a lot of steel that Muller had back in 2020 or so. I had a barrel out of that lot that was comprised of both 8MI and 4MI. Didn't matter what rifling they were, most all of those barrels shot really well. The barrel steel lottery is real. I personally feel that the OP's smith should finish the barrel as he normally would for any given rifling profile. This smith has a very good reputation. If the barrel shoots, it means he did his job. If it doesn't, it means he screwed up, or more likely from what I know of him, the barrel didn't make the grade, or some other influence has caused poor results on the target.

Scott

Thanks for your info!! Evelio first posted over on rfc asking about it. Because he said he tried to slug it and it was so tight he couldn’t move it with a rod. So he posted trying to find out if normal or not with them. But couldn’t find any one that had used one.

 

[jelenko]

Well, I spent the last 5 minutes trying to decide how to respond to VLNBYR.
I gave up and simply added him to my ignore list.

 

[longrange223]

You're ignoring a very knowledgeable asset by doing that...

 

[longrange223]

I've had Muller 8 groove MI and 4 groove MI and several others and none of them were bad barrels...

 

[ISS]

even here we run into a troll/idiot who wants to see their name on a thread...
I'm sticking him on my ignore list as well.

 

[BowChamp]

You're ignoring a very knowledgeable asset by doing that...

You're ignoring a very knowledgeable ass by doing that...

I agree and I also fixed it for you. LOL!!

 

[doclu60]

Thanks for your info!! Evelio first posted over on rfc asking about it. Because he said he tried to slug it and it was so tight he couldn’t move it with a rod. So he posted trying to find out if normal or not with them. But couldn’t find any one that had used one.

Mt Boy,
I didn't know the back story on your barrel, as I do not frequent RFC. I have watched the process of taper lapping rimfire barrels though and I am somewhat confused as to how one could possibly be so tight. BTW; the barrels I watched being lapped were Muller barrels.

On another note, I pulled out the Octomax I have and will be installing next week when it warms up. I'll be shooting an indoor match in February and should have enough good days before then to get it tuned. It was machined in Feb of '23, so guess it needs a look!

Scott