Best barrel twist for .54 Caliber

[LME]

I tried coreecting my RB keyholing. Tried different loads, patch thicknesses and finally had a someone cast me up custom diameter balls. Nothing worked. Them I started using Maxis and the keyholing went away. Problem solved.

I really don't think many people get it?

 

[morehops52]

I really don't think many people get it?

Yep, sometimes my attempts at humor are a bit obscure.

 

[necchi]

Well, at least someone posted what the best twist is,

 

[jtkerk]

Dido

 

[jtkerk]

I

Yep, sometimes my attempts at humor are a bit obscure.

I enjoyed your humor

 

[Absoroka]

Gotta love a good chuckle, but isn't "ditto" a better word?

 

[Sidney Smith]

My TVM Lancaster has a 1 in 60 ish twist rate. It's very accurate and is meant for roundballs.

Get a 1 in 48 twist if you'll be shooting balls or conicals. Slow twist rates aren't good for conicals from what I'm aware of.b

 

[Mike in FL]

My best round ball rifle has a 1:48. In my experience, in .50 caliber and larger with that twist have a sweet spot powder charge. Very accurate at a particular amount but no so good with less or more. Whereas dedicated round ball guns with a slow twist is more forgiving. With a slow twist longrifle I can usually get outstanding accuracy at a particular hefty charge and then cut it in half for a much lighter practice/small game charge without changing POI except of course at long distance. A .50 with 30 - 40 grain charge is going to drop at long range but shoots the same at squirrel distance. Sounds like a lot of meat damage, right? But counter that by not shooting at the main edible parts. My only muzzleloader turkey was still fit for the table because my 40 grains in my .50 caliber (1/2 of 80) was hit behind the breast but forward of the drumsticks. Of course that would never work with a head-on shot.

 

[mtfishn]

I concur with Mike. I had a .54 w/ 1in48 twist and could not get it to shoot well with heavy PRB loads, shot Maxis pretty good. but would shoot centers out of Clay pigeons at 35yds with about 50 grains using PRBs. I have another barrel (Rice) for the same gun that has a 1/70(?) twist and shoots great with any PRB load.

 

[apachesx2]

The optimal twist rate is determined mostly by the length of the projectile your using. In any given caliber the longer your bullet is the faster you got to "twist" it to stabilize it in flight. That's the simple answer. If you want a more complicated explanation all the ratios and formula stuff, look up the Greenhill Formula.

Thank you spot on... I fully agree the results across my entire fire arm collect and experience...

 

[J.D.]

I do believe twist rates relationship to projectile length is a modern idea for use in modern high powered rifles, as the 1861 rifle muskets, used a twist rate of 1-72. They seemed to shoot relatively long bullets rather well.