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Very Hot Topic (More than 25 Replies) Wads Protecting Breech Seated Bullets - A New Idea (Read 14252 times)
John Boy
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Wads Protecting Breech Seated Bullets - A New Idea
Jun 12th, 2015 at 11:34am
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John Louis & I were discussing the use of wads when seating 32-40 bullets with a seater.  He cautioned to be careful that the wads don't twist in the chamber when seating.
I use pure wool felt wads a lot and looked on the Duro-Felt website for felt pads.  They have adhesive backed pads!  So I ordered a few hundred 5/16 x 1/16
This is a tray with the pads affixed ... quick, easy, no need to assemble individual wads at the range when seating and no concern they will twist & stick in the chamber  Smiley And they are fully consumed at 212 degrees Fahrenheit 
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BP
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #1 - Jun 12th, 2015 at 11:23pm
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John Louis & I were discussing the use of wads when seating 32-40 bullets with a seater.  He cautioned to be careful that the wads don't twist in the chamber when seating.
I use pure wool felt wads a lot and looked on the Duro-Felt website for felt pads.  They have adhesive backed pads!  So I ordered a few hundred 5/16 x 1/16
This is a tray with the pads affixed ... quick, easy, no need to assemble individual wads at the range when seating and no concern they will twist & stick in the chamber  Smiley And they are fully consumed at 212 degrees Fahrenheit 
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So if you drop one in a pot of boiling water, it gets fully consumed?
I suppose it would be easier than screwing on the brass bases to the bullets like FW Mann did.
  

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #2 - Jun 13th, 2015 at 8:52am
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I tried punching my own felt wads with a Fred Cornell punch and a Shaver drill press cutter, both cut crooked. Never thought of sticking a wad to the bullet base. Thank you for the post.
  
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JLouis
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #3 - Jun 13th, 2015 at 7:20pm
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32-40 bullets shot through an Ohler Ballistcs System, the same system used by major manufactors of bullets firearms etc. not a simple chronograh provided an additional consistant 15fps. muzzle velocity. Why is an unknown but they do make a differance.
Is the comment about boiling water a question that a child would ask in humor or were actually serious as the thread was meant to be?

JLouis
  

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #4 - Jun 13th, 2015 at 8:25pm
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Is the comment about boiling water a question that a child would ask in humor or were actually serious as the thread was meant to be?

JLouis


I consider it a serious question. 212F is a standard temp and is used in a lot of things but, it's based on the temp that water boils. Or would it be 212C?

It also seems way to low (F) to "consume" wool. What is the medium that will comsume wool at 212?

Powder gases are way beyond that temp and would seem that the wool would be gone before the primer flash had finished. 

Tell us more.

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #5 - Jun 13th, 2015 at 9:05pm
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From the Felting 101 link on the Dura-Felt web page.

"Felt can withstand maximum temperature 100 degree C OR 212 degree F. Anything higher will burn the felt and turn it into charcoal."

Jack
  

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #6 - Jun 13th, 2015 at 9:53pm
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Maybe the easy burning felt is just providing more "fuel", thus the extra 15fps. Stranger things have happened. Put a whole stack of 'em in a case and see how many feet per second the felt produces?
  
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #7 - Jun 13th, 2015 at 10:13pm
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So would not what they say hold merit and end that part of the discussion from further debate? Even though it is very difficult at times for this group to stay on track with the original post could we all please try and give it ago for a change. If you don't or haven't used wads per the original posters question please
refrian from making an unjustifiable comment as there are some here earger to learn from those who have that might be willing to share. 

I have used wads seated at the base of the bullet with great success with the end result finishing in the top
three of hard contested benchrest matches over the years. Myself and John have disscussed this in PM's so so he is not looking for any more of my input he is looking for input from others who might have experianced the same or maybe the opposite?

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #8 - Jun 13th, 2015 at 11:13pm
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I was serious- what's yer point again?
  
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John Boy
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #9 - Jun 14th, 2015 at 1:03am
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Maybe the easy burning felt is just providing more "fuel", thus the extra 15fps.
In order for wool felt wads to produce any "energy" when it burns to charcoal as Asha, the owner of Duro-Felt states, the charcoal would have to contain 2 energy producing ingredients.  Glucose (sugar) and creosote.  Burning wood, an energy producer, contains both these ingredients of glucose and creosote.  Wool has neither of these therefore it could not produce any energy. 

I believe Asha would have better to have used the word ash.

Black powder is made with potassium nitrate - sulfur and charcoal, an energy producer in black powder.  The charcoal is obtained from wood chared in a retort at approximately 300-320 degrees Centigrade after the wood is ricked, dried and the bark removed.  The wood that contains the most glucose and creosote is Alder Blackthorn branches primary harvested in the Spring.  This is when it has the most sugar and Alder wood has a high concentration of creosote.  The 300 C temperature is the standard so the creosote is not flashed off

I am a BPCR shooter and use felt wads extensively.  So did Harry Pope who punched out his wads from old wool felt hats. The primary purpose of using a wad is to protect the base of the bullet on ignition. I have dug BPCR reload bullets shot with felt wads out of the berm with edges as sharp as when they dropped from the mold. For breech seating using a wad, including felt, protects the base when seated and also on ignition. When J Louis told me he used fiber wads for breech seating, I concluded that felt wads would do the same having shot thousands of BPCR reloads using them.  Then the idea of adhesive based felt wads came to mind and I ordered a few hundred.  Pre affixing the wads to a tray of bullets deemed a better way than one at a time at the range with a possibility any type of wad might be canted in the chamber
The Reason for the Post and Again - Thanks John!
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #10 - Jun 14th, 2015 at 2:36am
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I've used 1/16 LDPE wads for 30 years with BP and smokeless but, I've never used wool felt.

The LDPE does protect the base of a from the peening that BP exerts on it and I'm sure that wool felt would also help protect the base, also. Recovered LDPE wads showed heavy peening so, I always use them in that application to protect the bullet base.

I've also used LDPE in the case mouth with smokeless to keep the powder from spilling, instead of floral foam. Another application was to insolate the bullet base to keep from gas cutting in higher velocity uses.

I too, talked to John, back when he posted on this forum, regarding BSing wads on the back of the bullet , causing the bullet to be 1/16 farther forward in the barrel with the wad behind it. I haven't found any marked increase in accuracy, accept with BP. I didn't use cork or fiber, just LDPE in my applications so, I can't say that wool would have the same effect but, if the improved chrono results are a result of better sealing of the base, LDPE would be at least as good, if not better in sealing the bore. I also didn't play with the BSing depth in that testing. Note that my LDPE wads are cut with a punch and die (.323 & .3115 - 32 & 30 cal), to insure sealing the barrel and case mouth.

The word "consumed" can have more than one meaning but, in this application it's NOT refering to being burned at 212F. The ignition temp for wool is 1112F.

I also found in my search that wool is abrasive and when highly compressed, it's used in metal removal (grinding/polishing wheels). The fibers have barb like surfaces and that's why it doesn't have to be weaved to make it into a fabric.

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #11 - Jun 14th, 2015 at 5:48am
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I use felt wads occasionally. They are not consumed by BP or smokeless. 

So, you're sticking the sticky felt wads/pads in the mouth of the shell? With the sticky back up?  Upon firing the wad/pad sticks to the base of the bullet? Is that correct? 

Oh, you have them stuck to the base of the bullets. Okay, why? Accuracy?  Is it working? I really doubt it's a new idea. "Nothing new under the sun", thing. 


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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #12 - Jun 14th, 2015 at 10:55am
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just an additional comment question.   In referring to the combustion factors,  what about the adhesive holding the wads to the bullet bases.  do you think it has any effect on the internal ballistics?  And, does it fall free and clear of the bullet base as most other wads do, or does it remain attached? 
I'd guess that unless it consistently separates as it leaves the muzzle,  or consistently remains attached to the bullet all the way to the target, the point and manner of separation might present potential problems to consistently accurate bullet flight.     { and to kick a sleeping dog;  if "attached" to the bullet I can imagine a question requiring resolution in terms of "gas checks"  Huh }
  

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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #13 - Jun 14th, 2015 at 2:38pm
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Thank you JohnBoy, for responding to the "fuel" suggestion. I really did present it as a possibility in the event nobody had questioned why the increase in velocity when using the wad. I didn't know that no energy would be produced. Heck, I was taught that most energy IS related to heat. Maybe you meant no energy was produced by high pressure expansion of gas? 

Anyhow, I'd like to hear why that increase. It can't take much room, so I didn't think that would account for much, nor would it seal any better than other things, would it? I like to listen, learn, ask questions. I don't use wads, yet.  Hey, it's just my way of reducing "variables".
  
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Re: Wads Protecting Breech Seated Bullets - A New Idea
Reply #14 - Jun 14th, 2015 at 3:27pm
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I'd bet that the increase in velocity is due to either reduced chamber volume ( depending on how they are seated ), or better sealing.  With bore diameter paper patched bullets I've seen very significant differences in velocity, presumably due to better gas seling before the bullet fully bumps up.

I haven't played with floral foam and BP, but with veg wads, cork, ldpe, and felt.  I think the ldpe wads seal best, but a combination of ldpe and cork might be even better.

With respect to combustion and energy production, if i burns, it releases energy, regardless of the material being burned.  That's pretty much the definition of an exothermic reaction which is what combustion is.   

Chris.
  
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