6mm vs 7mm in the wind - Am I missing something?

[DaveMc]

I agree with Sendit, for club shooting, Im not going to use my 7mm when its built except for 800-1000yds and windy days. 6mm the rest as its cheaper to run. 38.50 per 100 vs 60 plus per 100 and the powder cost on top. Thats getting up there for an arvo of club shooting.

Just one point here Quick - you should include all costs including barrel life- compare a 284 with 2000 rounds of barrel life, then a rechamber for another 1000 = split barrel cost at $1000 (including 2 chamber jobs) over 3,000 rounds = another 30+ cents a shot

Now do a super 6mm. - even if you get half the barrel life then you would add 60 cents+ per shot to equal about the same cost per shot in total.

a 6BR is of course far better.

[bartman007]

Hi Brad
No Offence but when you have one you WILL use it at the longs, it's just what happens, this gun for this, that gun for that. Rolling Eyes

The problem starts in the morning before you get to the range, you will be shooting at 700 and it looks like it will cut up do I use this or that, dammit I'll take both and make the call at lunch time.
Now you take two guns and ammo to the range every weekend its over 700. Laughing

I take 2 barreled actions to prize meetings for the option of running the 7mm if the conditions are rough. Otherwise the 6mm is the choice, as it is SUPER ACCURATE, and gives a great center count.

The 7mm is great to punch through rough conditions, but don't wear it out!

When you attend club shoots, use the 6mm. Push yourself to read the wind better, and you'll improve! No use taking the soft option when there are no sheep stations counting on the outcome.

[bruce moulds]

bart,
there is a better way to push yourself to read the wind.
BPCR
3 seconds to reach 1000 yd, so there can actually be a change while the bullet is in flight. and the bullet goes up over the flags.
double or more deflection than a 308.
because you cast your own bullets, you save bigtime, and barrels last forever.
keep safe,
bruce.

[bartman007]

Bruce,

There is only one thing I've learnt about BPCR, and that is:

DON'T STAND DOWNWIND


I remember when they had a demo at the NSW Queens back in the 90's, and I found this great area where there weren't any spectators

After the first volley of shots, I realised why I had the area to myself

They talk about cars and the ozone layer, I'm thinking they should add BPCR to that list. Very smokey output.

Enjoy

[Brad Y]

Gadget

I do see where your coming from. Im lucky enough to have my 6.5 and 7mm on one action and the 6mm on another action. For prize shoots I will always have either the 6mm and 6.5mm or the 6mm and 7mm there with me. But for club shoots we dont have anything in place for club champion or anything like that. I like to use the opportunity to shoot in different conditions, give myself time limits for each shot, shoot looking at certain flags only etc. To me I will learn alot more doing that, than taking my one super accurate rig there all the time and try to beat everybody. I dont see it as being all that productive. And cost wise I think its a little prohibitive as well. But fear not, I will have a 7mm and 6mm for tassie and the rest of the WA shooters will have a fairly wide range of calibers at our disposal too. Will see in a couple of weeks which ones will be benchmarked for setting aside for tassie competition.

[AlanF]

As discussed earlier in this thread, here is my extended version of Dave's Excel Modeller : http://ozfclass.com/forums/xls/1000yd_icfra_target_simulator.xls

You'll also need to download and install the BfX ballistics add-in for Excel : http://www.bfxyz.nl/docs/bfxinstallandupdate.shtml

You'll need to be reasonably competent with Excel to use it - making things user friendly is very time-consuming so its a bit rough around the edges.

Alan