Teflon Tape Patch in Lieu of Gas Check? - Graybeard Outdoors
 
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Old 04-06-2015, 02:17 AM Thread Starter
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Default Teflon Tape Patch in Lieu of Gas Check?

Hi All,
One of the stated advantages of paper patching has been that you can drive cast bullets closer to or exceed copper jacket velocities. Most folks seem to do it without a gas check.

I'm wondering if teflon tape would also let me skip the gas check (say, using a mould that does have the GC groove though) and achieve higher velocities like paper.

If so, since it's so thin, is it sufficient just to wrap an as cast bullet, or is trying to get the whole works through a sizer a necessity?

For example, can to take an as cast 311041, Wrap it two turns with teflon tape, and call it good?

Or is that wishful thinking?
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Old 04-09-2015, 11:06 PM Thread Starter
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Default Re: Teflon Tape Patch in Lieu of Gas Check?

Quote:
Originally Posted by white
I used teflon tape on some 200 grain semi wad cutters in my 45 ACP. velocity went up about 250 fps over my lubed load, easy to clean barrel and slicker than you know what.
Any experience with that in rifle calibers?

They say Paper Patch lets you shoot lead bullets at jacketed velocities, wondering if Teflon would do the same?

But I am a bit perplexed why Paper Patching would let you shoot any faster, if the theory that the rotational speed of the cast bullets is what makes then inaccurate at jacketed velocities. Speakin' rifle here, velocities north of say 2000 fps.
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Old 04-13-2015, 03:48 AM
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Default Re: Teflon Tape Patch in Lieu of Gas Check?

I've shot teflon patched bullets from my .45-70 but only up to trap-door level loads. The rifle can take hotter loads but I cannot...

Anyway they shot well and accuracy was good but I don't have a chronograph so I can't comment on velocity...

Tony
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Old 04-20-2015, 12:12 PM
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Default Re: Teflon Tape Patch in Lieu of Gas Check?

Does the teflon shred in the bore like paper, or does it stay with the bullet?

Experience is a series of non-fatal mistakes


Disarming is a mistake free people only get to make once...
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Old 05-05-2015, 10:33 AM
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Default Re: Teflon Tape Patch in Lieu of Gas Check?

It seemed to blow off just out of the bore. There were no signs of it coming apart in the barrel...

Tony

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Old 01-30-2017, 08:24 PM
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There was a gun on CastBoolits who took PP cast to 3000fps in a 300WinMag, with accuracy

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