Bcoulter said:I called MU last Wednesday, put a check in the mail the same day. The Breech plug showed up today with 3 o rings, fast turnaround IMO. I guess the o ring goes under the primer, seems like it would get fried. 60B58955-C7B7-45ED-B1DF-9E384D49735C.jpeg849DF142-2053-4E5D-BA94-516428F8CBF8.jpeg610BCF99-10D1-4B3D-8C80-FADA912DD7C8.jpeg
The o-rings can last up to 60-70 shots shooting Blackhorn 209. The center will start to wash out, but it will keep on sealing. Nick was using Triple Se7en powder and getting 70 shots or so. I generally replace them after each range session at approximately 40 shots, and always use a new one while hunting. This is a much cheaper alternative than the leaky orange primer carriers, and it actually seals. Another benefit of the o-ring is it absolutely seals out rain and melting snow from entering your powder charge from the primer end, as long as the breech is locked up.
I just heard within the last month that Remington/H&R/NEF has discontinued making the original Orange plastic primer carriers. I knew that day would come eventually, so the demand for these types of carrierless 209 breech plugs should go up as those supplies dry up.
I did a bunch of Blackhorn 209 testing through several different rifles and breech plug designs back in 2008 and 2009. This is one of the plugs I tested in early 2009. I made a bunch of reports back then, but Scumbucket severed all the links to my pictures.
Here is a link to one of the threads. You might find something useful in the text? Like I said, the pics are not there. You can use any 209 primer you wish to use in this plug with the o-ring installed. Triple Se7en loose powder is much easier to ignite than Blackhorn 209.
viewtopic.php?t=11904
Good luck with your new breech plug, and on your elk hunt next year.
This thread has a lot more information in it, as that is where the H&R/NEF guys hang out.
http://www.go2gbo.com/forums/113-huntsm ... table.html