Any body tried these in their RB twist barrels?

[catman]

This is what they say:

Hornady Conical Rifle Pennsylvania .50 cal:
Formulated for round ball rifles, This conical hosed bullet has about 35 percent more mass then a typical lead round ball. On impact, it expands reliable for greater terminal performance. The conical shape adds stability in flight for increased accuracy. The hollow base of the PA bullet obtrudes easily, sealing the bore upon ingnition for optimal velocity.

Features: The best hunting bullet for round ball shooters available. Available for .50 caliber

Looks like just another ballet

 

[musketman]

This is what they say:

Hornady Conical Rifle Pennsylvania .50 cal:

Looks like just another ballet

Yep, I would have to agree, it looks like their version of the Ball-et. Should produce the same results as the ball-et, however they limited themselves by only offering it in .50 caliber.

 

[CoyoteJoe]

The differences between a roundball barrel and a conical bullet barrel involve more than just the rate of twist. In fact, rate of twist may be the lesser concern. Conicals for ML rifles need to be bore size or very little over and depend on expansion of the base to fill the grooves and engage the rifling. For that reason a conical bullet barrel will have shallow grooves, only .003-.005" deep. Barrels for patched ball normally have grooves .010-.015" deep or even deeper. Conical bullets have a tough time filling and sealing those deep grooves. Often the naked bullet will permit gas blow-by which scores the bullet, ruins accuracy and leads the bore. That bullet may indeed shoot just fine from a 66" twist, IF it is also a shallow groove barrel.

 

[slowpokebr549]

I used to hunt with balletts in my old CVA fifty I really didn't see an improvement in terminal performance on whitetail compared to roundball.They did shoot well though,even better with a felt wad behind them.I never really thought of it that way, but I think Coyote Joe has a point. My old fifty will throw a great plains conical all over hells half acre, but paper patch it and it will shoot them just fine. It is a 1:66.

 

[catman]

I used to hunt with balletts in my old CVA fifty I really didn't see an improvement in terminal performance on whitetail compared to roundball.They did shoot well though,even better with a felt wad behind them.I never really thought of it that way, but I think Coyote Joe has a point. My old fifty will throw a great plains conical all over hells half acre, but paper patch it and it will shoot them just fine. It is a 1:66.

I will be coming through your neck of the woods (Nevada, MO) today heading for KC, MO for Christmas. I've always thought there would be some big grain fed deer in your area..

 

[BrownBear]

My old fifty will throw a great plains conical all over hells half acre, but paper patch it and it will shoot them just fine. It is a 1:66.

Now that's interesting! Makes sense in a way based on my experience with paper patch and cartridge guns, but I never thought to try it in a ML. I sure had the same experience with bare conicals in slow twists.

 

[Walks with fire]

Yep; I paper patch the PA Conicals for my .010 deep 1/66 twist PA Hunter rifle and they shoot outstanding. Eighty grains of 2f. Great groups.

I started doing it to keep em snug in the bore more than anything. Accuracy is outstanding.

 

[ohio ramrod]

They apear to be simular to the 45 short mini's that I make and use on Ohio White tail with excellant results.I lube them with 80% lard 20 %beeswax and use a pistol fiber wad between the powder and mini. I get two inch groups at 100yds in a 1 in 48 twist. ( At least I used to- the eyes aren't what they used to be )

 

[slowpokebr549]

I have an old Martini Henry that I paper patched rounds in order to replicate 577-.455 boxer rounds. When I started working up loads in my fifty it just seemed like a natural progression to me. I sure got some funny looks at the local black powder shoot though. I get newspaper end rolls and use that to roll rounds with. And yeah, Catman we do have some nice grain fed deer around here.

 

[tg]

"The best hunting bullet for round ball shooters available."

Any one care to explain that one to me?

 

[TANSTAAFL]

I concur with your statement. Some of the rifled muskets had twists as slow as 1:78, although the British did change the twist of the Enfield Pattern 1853 to 1:48. (US civil war era) But it was/is the shallow rifling that makes them efficient and accurate.