BreechPlug Question???

[kiddynomite]

SMI has my H&R action now building me a .45 caliber SML barrel and I've read where they have two differant kinds of breechplugs. I understand they have one with a ventliner and a carbine type. Which is is best one and why? Thanks Kid...

[bigmoose]

I have both types, but now I only use the vent liners, I like the idea if you have a problem a long way from home, all have to do is screw in a new liner
I have one that Pete {very nice work} made for me over two years ago, never had in in my rifle.

[bigmoose]

Also the first carbide plugs Rick, got ended up coming from China, I burned them out fast. I like the vent hole to be .027 or .028, the smallest carbide I had was .032, thats not to say they don't come smaller
Get both and see which you like.

Good Luck

[Dave W]

Not sure if there is any advantage to either, more of a convenience maybe.

Vents are easily replaced when worn out. Their disadvantage- the ever changing flash opening and monitoring of it.

If they are using carbide bushings and not hardened, the life should be very long. I have burned through cheap hardened bushings in less than a 100 shots. Long lasting bushings are nice because you can remove a variable from a load for many shots. Check it, clean the flash channel and be done with maintenance. A disadvantage is bushing replacement and cost.

I can't recommend a bushing plug that only has a pressed fit. Some stay put, others get blown out the barrel. IMO a secondary safety device is needed to insure the bushing does not move.
I would advise anyone using a bushing plug to make sure they have a witness mark and pay attention to it when reloading.

[moto357]

only tried a bushing plug once, after a few shots my 209's were blowed up. took plug out and the bushing was gone, so all screw-vents for me now..

[jims]

I have both types but prefer the vent types. It is easy to replace the vents but when the bushing is shot there is alot more down time involved.