pete evans
Well-Known Member
just chrono my 2 main loads 70 grain ballistic tip 3325fps and 150 interloc 2750 fps. these loads are both really accurate and do the biz. are these velocity figures about right or fast or slow from 20" barrel
Gary your .243 load only makes 1027 ft/lb so presumabley is for fox only as the bullet is less than 50grns so also not suitable for small deer.
pete, the primers are supposed to be flat.
thats how you tell that you've got the right amount of pressure! pressure = velocity. velocity is good! isnt that why we use varmint ballistic tips on deer? lots of internal damage and no exit wounds.
just chrono my 2 main loads 70 grain ballistic tip 3325fps and 150 interloc 2750 fps. these loads are both really accurate and do the biz. are these velocity figures about right or fast or slow from 20" barrel
As for lightly constructed "varmint" bullets on deer... nuh uh!
Those velocities sound pretty healthy to me, now you just have to resist the urge to change anything.
The use of varmint bullets on deer is an old favourite on this site, always open for debate it seems, some people use them, and are happy with them, others say that you shouldn't use them. It's just the way it's always been.
DL, just so's I'm left in no confusion, if you'd be so kind. Are you condoning Offroad Gary's suggestion that flat primers are how you "tell" that you've got the "right amount of pressure"?
The way I read Gary's post was humerous, in that all primers should be flat before the firing pin strikes them, the guy's not going to push it too far - he uses Blasers!
DL, mine start out cup shaped.
Using primers to guage pressure is undoubtedly useful, but it's not an exact science.
Which is precisely why it's a bad idea to think a load is "the right amount" once the primer's flattened, or worse still, flowing into the firing pin hole.
I understand your concern Tam, as there are a lot of novices on this site, so here's a useful link that was posted up on a varminting website (thanks Geoff)
http://www.larrywillis.com/pressure_signs.html
Useful link, but note the flow at pic 3). And especially note the caveats. Frankly, the different strike points of the firing pin in these pics makes me suspect that those used cases may have come fom different firearms.
BUY A GOOD RELOADING MANUAL, depend on it and don't depend on people who think they are being "humerous".