Rimfire velocity for smallbore silhouette

[MCG]

The rules for smallbore rimfire silhouette say you can't use "stingers," which, unfortunately, are not defined.

Per the web: the popular Wolf 40 grain match grade target ammo is 1050 FPS, i.e. subsonic.

Other, "high velocity" ammunition from CCI (mini mag), federal, and winchester is 40 grain, 1235 to 1260 FPS.

Is the high velocity ammunition legal for smallbore competition?

[dave imas]

high velocity ammunition is legal for rifle silhouette.  hyper velocity ammunition is not.  i believe that typically refers to ammunition that meanders at 1300 fps or greater.  i am sure Ernie or Dan will have the exact definition?

reasons are to avoid target damage.  typically hyper velocity ammunition isn't nearly as accurate as standard velocity ammunition so few people would consider them for the game.
dave

[nomad]

Dave,

After all that I've done for you, you lump me with Dan? (OH well, that's actually not bad company...) lol

Just so happens that this might help:
http://www.korabrno.cz/bal-22.html

As Dave points out, HV ammo is generally less accurate, drifts more in wind and is hard on targets without providing any useful advantage. (It won't really get you any targets that you might otherwise leave...)
With all that against it, this is a rule that is usually self-enforcing.

[MCG]

So we're clear, you see no real advantage in using high velocity ammunition over standard velocity?  Not sure if you're refering to no advantage of hyper velocity over high velocity.  Just want to be clear.  Thanks

[RamSlammer]

G/Day
         I don't remember any one using high velocity ammo in smallbore at national level here in Australia. I would find the most accurate standard velocity(try it at 100m) and stick with it. I wobble that much the group differances aren't prodably relevent,BUT if you know your ammo is good it's one less thing to worry about. Unfortunatly it is also one less excuse for missing.lol
                                    Juddy

[nomad]

MCG

The clearest that it's possible to be is to say:

1. Anything other than good, standard velocity ammunition will almost certainly cost you accuracy.
2. Standard velocity will behave better in the wind.
3. Anything that does -- or has the potential to do -- target damage will get you into the BAD graces of the match director. (Hyper vel is illegal.)

If you do the 'pro and con' thing with HV/Hyper vel, there is no 'pro' and lots of 'con'!


Is this all theoretical or have you got a rifle that does something unusual with high/hyper vel rounds?

[cslcAl]

Once again I have to agree with Nomad. We used to have a lot of target damage, so we have a club rule of standard velocity only. Our SB program specificaly states Standard velocity ammo only. Our target damage now is very minimal. We used to lose a lot of chickens (which now are made heavier), but we also lost a lot of rams. The horns would break off. We had a couple of "good ole' boys" who used to set up the range early in the afternoon then shoot for hours till the match started at 6pm. When I found out they were using every kind of ammo you could think of I made them stop that practice. These guys carry their match ammo in coffee cans so you have a hard time telling what they are using. One match in a shootoff the one fellow had an alebi, when I checked it he had a hollow point round in his gun. It was a high velocity Winchester with a 37gr. hp. Does any one want to be Match Director next year???

Al Foust