Jump to content

BIo Ammo hulls


Recommended Posts

Hi iPeter,

Thanks for that.   I have fired 1000's of eley eco wad steel carts and conventional steel plastic wad carts through my AYA.  Plus plenty of Duplex Steel no 2 and TSS 7 through it and a couple of steel\TSS home loads with fibre wad cups.  Never even used Mylar wraps on any loads!  A bit rash some may say but I haven't seen any scoring of the barrels.

If there is scoring should it be visible to the eye or do you need magnification gear to see it properly?

Cheers

Link to comment
Share on other sites

1 hour ago, flippermaj said:

Hi iPeter,

Thanks for that.   I have fired 1000's of eley eco wad steel carts and conventional steel plastic wad carts through my AYA.  Plus plenty of Duplex Steel no 2 and TSS 7 through it and a couple of steel\TSS home loads with fibre wad cups.  Never even used Mylar wraps on any loads!  A bit rash some may say but I haven't seen any scoring of the barrels.

If there is scoring should it be visible to the eye or do you need magnification gear to see it properly?

Cheers

You can see them with the naked eye, but its fairly difficult to photograph without a bore scope, which of course makes everything look significantly worse.

When I had them looked at, I was told they were only cosmetic - but not if they kept appearing.

My theory as to why some some guns can fire thousands of steel cartridges with no damage, and others seem to get scored in the first few shots is that there's a large variety of internal barrel profiles - different chamber lengths, forcing cone / choke profiles / internal bore diameters, etc.

If for example, there's a very steep forcing cone, I can see why steel pellets may push up againt / through the wads more so than with lead, that would likely deform / or than though a shallower profile.

Likewise, I can also see why pellets may push though gaps in a wad if it's got more give, having been fired in an over bored barrel.

Also, that if a 2 3/4" cartridge was fired from a 3 1/2" chamber, the gap up front may allow some pellets to escape the wad / the freedom of expansion at the end of the chamber then being compressed in the forcing cone may result in a pressure spike that causes the pellets to put pressure on / push though the wads.

So lots of variables - which the very general advice given out by various authorities don't really take into account.

Editted to add photos of the inside of my AYA's barells 

20230304_113758.jpg

20230304_113737.jpg

20230304_113653-1.jpg

20230304_113647.jpg

20221105_160935-1.jpg

Edited by PeterHenry
Link to comment
Share on other sites

My finding is that bio ammo breakdown whilst in the gun. My semi auto pulled the brass heads off them and left them up the chamber. Luckily the chamber was not long enough to take 2 cartridges. 
 

Worked well in a over under and I found they killed clean.

6b7b4f74-1e8f-4ee0-8258-1aeaa8d85a8c.jpeg

7a9023ae-8a3a-47fc-a1ce-047c86403d52.jpeg

Edited by joejoe
Link to comment
Share on other sites

On 28/11/2024 at 23:42, PeterHenry said:

I bought some, cut them open, took one look at the wads and said no thanks.

There were pellets afully close to being pushed through the wads prior to being fired - so heaven only knows what happens once the trigger is pulled....

Exactly what I did and is my concern also Peter. 

Link to comment
Share on other sites

13 hours ago, Fil said:

Exactly what I did and is my concern also Peter. 

Obviously Eley is a company, and so doesn't have a conscience as such - but I wouldn't have the nerve to put something like that on the market.

I've got an all bells and whistles high performance steel proofed Browning that I bought a few years ago to use especially with steel, suspecting it would pick up some damage along the way - and I didn't even want to put them through that.

Link to comment
Share on other sites

19 minutes ago, TIGHTCHOKE said:

Eley are just a part of Maxam, who seem to be taking over the world.

Not any longer Maxam sold all the cartridge manufacturing businesses they owned to Nobel Sport, their parent company Sofisport Group is the lot taking over the world together with the CSG group.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...