1-66 twist & TC maxi-ball - The HuntingPA.com Outdoor Community
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post #1 of 12 (permalink) Old 12-23-2018, 07:14 AM Thread Starter
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1-66 twist & TC maxi-ball

Has anyone have any experience shooting a TC maxi-ball in a ML with an 1-66 twist? Is this twist rate too slow to stabilize a 320gr maxi-ball. Before I make a purchase that may prove to be a wrong one. Thanks guys.
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post #2 of 12 (permalink) Old 12-23-2018, 07:45 AM
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Maxis and conicals shoot well out of 1:28 etc twist AND shallow cut rifling.
Shallow cut rifling gives less chance of blowby when shooting a conical.
It all depends on how accurate you want it to be.Smooth bores will often give less than 3" groups at 50 yds with a bare ball and a fiber wad.Rifled barrels often give 1 1/2" at 50yds with many cutting the same hole.
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post #3 of 12 (permalink) Old 12-23-2018, 08:27 AM
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Shot the TC Maxi 370 grainer out of a TC Firestorm(1-48 bbl) but nothing slower. My first flinter was a TC PA Hunter 1-66 bbl and the patched round ball was the best bullet. Personally I would opt for the patched rb, 245 Powerbelt AeroTip or Hornady 240 gr PA Conical.
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post #4 of 12 (permalink) Old 12-23-2018, 10:33 AM Thread Starter
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Thxs for the tips guys. And I do think that a lighter power belt may be a better choice.
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post #5 of 12 (permalink) Old 12-23-2018, 11:16 AM
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Quote:
Originally Posted by Loggy View Post
………... or Hornady 240 gr PA Conical.
The Hornady PA Conicals shoot like NUTZ outta my 66 twist barrel !!! 80 grains of FFg and I ALWAYS get 2 holes in a deer.
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post #6 of 12 (permalink) Old 12-23-2018, 12:50 PM
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I agree with Strut 10. Those Pa conicals are pretty good in a 1:66 twist. If you like casting your own the Lee Precision 250gr REAL bullet is another very acccurate one, and one I much perferred over a patched ball in my 1:66 twist barrel.
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post #7 of 12 (permalink) Old 12-23-2018, 02:03 PM Thread Starter
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PA conical 50cal

I did some research on the Hornady PA conical 50 cal and diameter is shown as .512. Will these be hard to load in a Lyman Great Plains 1-66 twist rifle? I didn't think I could use anything larger than .50 diameter. I'm a little confused about the diameter size.
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post #8 of 12 (permalink) Old 12-23-2018, 02:13 PM
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I did some research on the Hornady PA conical 50 cal and diameter is shown as .512. Will these be hard to load in a Lyman Great Plains 1-66 twist rifle? I didn't think I could use anything larger than .50 diameter. I'm a little confused about the diameter size.
Barrels listed as .50 caliber by various manufacturers often vary from .495 through .505 caliber. I think Lyman bbls are .502 land to land. You should be snug which is good.
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post #9 of 12 (permalink) Old 12-23-2018, 02:19 PM Thread Starter
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Loggy, thank you buddy.
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post #10 of 12 (permalink) Old 12-23-2018, 02:51 PM
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Loggy, thank you buddy.
You're very welcome. Be sure to report back on how they load/shoot for you. A lot of guys here have Lymans. I had a 54 GPR but sold it when i got my Brad Emig 54 PA Mountain Rifle. Lyman makes a nice flinter.

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