3 groove barrels-mullerworks

[5spd]

I run the BHW P3 barrels on 5 builds and while not mullerworks I can attest to the great accuracy/performance of the P3 grooved barrels.

 

[bdale]

The bullet doesn't spin that many times in the barrel!

Really : MV x (twist rate) x 60= bullet RPM. In other words, the RPMs can be several hundred thousand RPMs, depending upon muzzle velocity.

The bullet doesn't spin that many times in the barrel, after it leaves the muzzle yes, if it spun that many times in the barrel there wouldn't be any jacket left :

 

[sdean]

Boyd how many spins for typical 6 ppc in 100 yds. I bet not as many as you would think. I don't have time to go back to school. Thanks

 

[stacy]

YOU GUYS HAVE BETTER LUCK WITH 3 GROOVES THAN I HAVE HAVEN'T TRIED MULLERWORK BARRELL BUT THE 6.5 LILJA I HAVE IS JUNK IT MAKES A FINE DOOR STOP!!!!!!!!!!!!

 

[Ledd Slinger]

"The number of grooves has no real bearing on accuracy or barrel life".

Frank Green
Bartlein Barrels

Pretty obvious who the new forum heckler is here... :

Now let's post what Frank Green really said on the subject of 3 groove barrel life...

"Barrel life? Again I don't see a difference in the number of grooves effecting barrel life etc...One barrel maker who is making 3 groove barrels the last I heard was claiming they last longer. This might be true in a button rifled barrel because of the wider lands. On average I don't see a button rifled barrel lasting as long as a cut rifled barrel..."


So he even says it "might be true". Why do you think he used the word "might"? He doesn't make 3 groove barrels nor does he use them so he really doesn't know. Neither do you Mr JRS. Take your chopped up quotes that boost your ego and go harass someone else...

There was no reason to quote the entire story. Frank happens to know just a bit about barrels Obviously, you know more than Frank about the manufacture of barrels : "on average". Comprendo? He is talking about button rifled barrels. NOT 3 groove barrels. The OP was questioning the 3 groove design. Period.

What exactly do you think he means by "wider lands"? 3 grooves gives you the wider lands that resists wear and tear and Frank is acknowledging that theory as a reasonable possibilty. Read it again and think about what it actually says. Not how you decide to interpret it.

PS: The OP did not ask about "design", he asked about "pros/cons". If longer barrel life is possible...that is a pro.

 

[Wirelessguy2005]

I can't speak on the larger calibers but I prefer the 3 groove barrels in 20 caliber. I have built and bought more than a dozen 20 caliber rifles in the last 5 years, the 3 groove barrels always produce better velocity for me than the 6 groove. This has been my experience, others mileage may vary. The X-caliber 20 Cal 3 groove barrel I have been testing for the last couple months also cleans easier than any of the 6 groove barrels I have previously used. Again others mileage may vary but in my experience the 3 groove barrels in general have been easier to clean.

 

[JRS]

"The number of grooves has no real bearing on accuracy or barrel life".

Frank Green
Bartlein Barrels

Pretty obvious who the new forum heckler is here... :

Now let's post what Frank Green really said on the subject of 3 groove barrel life...

"Barrel life? Again I don't see a difference in the number of grooves effecting barrel life etc...One barrel maker who is making 3 groove barrels the last I heard was claiming they last longer. This might be true in a button rifled barrel because of the wider lands. On average I don't see a button rifled barrel lasting as long as a cut rifled barrel..."


So he even says it "might be true". Why do you think he used the word "might"? He doesn't make 3 groove barrels nor does he use them so he really doesn't know. Neither do you Mr JRS. Take your chopped up quotes that boost your ego and go harass someone else...

There was no reason to quote the entire story. Frank happens to know just a bit about barrels Obviously, you know more than Frank about the manufacture of barrels : "on average". Comprendo? He is talking about button rifled barrels. NOT 3 groove barrels. The OP was questioning the 3 groove design. Period.

What exactly do you think he means by "wider lands"? 3 grooves gives you the wider lands that resists wear and tear and Frank is acknowledging that theory as a reasonable possibilty. Read it again and think about what it actually says. Not how you decide to interpret it.

PS: The OP did not ask about "design", he asked about "pros/cons". If longer barrel life is possible...that is a pro.

You can't decide what you want to say. Can you ??? Time for me to stick to the classifieds

 

[JRS]

The bullet doesn't spin that many times in the barrel!

Really : MV x (twist rate) x 60= bullet RPM. In other words, the RPMs can be several hundred thousand RPMs, depending upon muzzle velocity.

The bullet doesn't spin that many times in the barrel, after it leaves the muzzle yes, if it spun that many times in the barrel there wouldn't be any jacket left :

Ya think not? Math, is actually a very simple way to ascertain that.

 

[bdale]

Yeah, 8 twist 24 inches of rifling 3 turns.
3x8=24

 

[LitLBoy]

All 5 of my 3 groove Lilga's .20 cal to 6.5 are VERY accurate

 

[JRS]

Yeah, 8 twist 24 inches of rifling 3 turns.
3x8=24

I'll leave you with this: if you can't explain it simply, you don't understand it well enough. And: any fool can know. The point is to understand.

 

[bdale]

Yeah, 8 twist 24 inches of rifling 3 turns.
3x8=24

I'll leave you with this: if you can't explain it simply, you don't understand it well enough. And: any fool can know. The point is to understand.

Pretty obvious I'm not the one having a problem understanding

 

[potatoe]

Thanks for the rpm formulas but I just wanna know how many have had any luck with em.

 

[hogpatrol]

 

[bdale]

Sorry potatoe didn't mean to add to the hijack of your thread, don't personally own one but have heard a lot of positive info on them, thought of a 7mm one myself :

LOL hogpatrol, love those little animations 8)

 

[potatoe]

No problem, I got the just of what I wanted lol. I'm still on the fence because the difference is only $25 between mullerworks and bartlein but I do like to atleast say I tried something new so I dunno.

 

[bdale]

I don't think that you could go wrong since Dan has worked with Rock creek as well as Broughton Barrels

A quick delivery of a quality barrel would be some thing I would consider as well.

 

[hogpatrol]

All this back and forth has gotten me off the fence to finally use my dust collecting, year old Muller 3 groove 20 cal.
20BR sounds interesting. I have the gauges, just have to scrounge up a reamer. I'm just wondering if the rpms decrease as distance from the muzzle increases.

 

[M-61]

All this back and forth has gotten me off the fence to finally use my dust collecting, year old Muller 3 groove 20 cal.
20BR sounds interesting. I have the gauges, just have to scrounge up a reamer. I'm just wondering if the rpms decrease as distance from the muzzle increases.

Sure they do.....however VERY slowly

 

[bdale]

As M61 said they decrease after awhile, but they increase spinning for a time after they leave the muzzle, that's why when you shoot a light bullet out of a fast twist barrel to fast it will sometimes come apart at some point downrange. If it were spinning at that rate in the barrel it would be coming apart closer if not at the muzzle.