Thread: Chrony Help Please

Hi Guys and Girls,

I'm in need of a little help. I'll spare you my life story but here is the short version.

I have Kimber 84M in 7mm08 with a 14" barrel and DPT which I use for bush hunting over my dog. I also have a 7mmRM for longer stuff which is away getting a new Stug stock hence the problem. I am heading away chasing sika next weekend and will definitely be in an area with longer shots being needed.

I can shoot and have an accurate load for the bush pig which has proven drops with a good dial up scope. Problem is the load I have is only good to 300yds max using a very slow 150gn projectile (before it runs out of energy). I can no doubt get more velocity out of the same powder and same projectile combo but have never had the need so don't have a load or drops.

I also have the option of running 120gn SPH pills over the same powder AR2208 (not that keen to buy new powders and pills for a once off).

Now here comes the main problem - I have a suitable location to do some shooting (weekend only)but no confidence in my Chrony. It is one of the cheap "Shooting Chrony Alpha" models I brought second hand and seems to read extremely high (I ran my rem mag over it, which I know to be doing 3050fps, and it recorded 3600fps). Being one of the fold out chronys it does not seem to be fully folded flat (thus shortening the distance between sensors and) which would account for the high reading... Anyway I digress.

I have two main questions:
Firstly - Which pill is likely to get me the best performance out of the 14" barrel (velocity and killing at range)? What realistic velocity can I expect with the 120s and the 150s over AR2208?
Secondly - Anyone between the Harbour Bridge and Whangarei got a chrony I can borrow for the weekend?

Cheers,
Adam