Search found 244 matches

by Tim L
Sat Jun 15, 2019 7:43 pm
Forum: Equipment & Technical
Topic: sighting in target
Replies: 21
Views: 958

Re: sighting in target

There was a bit of history in the 215s Litz had been shooting them the previous year from a 1:9. The reduction to a 1:10 was, iirc due to the extra spin of a 1:9 accentuating errors from jacket wall thickness when there was no need to spin them that fast. That said, he seemed to do pretty well with ...
by Tim L
Sat Jun 15, 2019 5:39 pm
Forum: Equipment & Technical
Topic: sighting in target
Replies: 21
Views: 958

Re: sighting in target

It was actually Bryan that explained the second part to me. He gave a lecture at the SWNs and explained why Berger had reduced the twist rate on the 215s from 1:9 to 1:10. In a conversation later on I asked about the dangers of running in the "marginal stability" zone of the Berger calcula...
by Tim L
Sat Jun 15, 2019 12:46 pm
Forum: Equipment & Technical
Topic: sighting in target
Replies: 21
Views: 958

Re: sighting in target

The 90/95 will go ok out of a 1:10 whilst it has the speed but I suspect it will loose stability at some point. Unless I've got this wrong - which HAS happened in the past - the bullet becomes more stable as it slows down in flight. As I understand it , that is dependant on spin rate being suitable...
by Tim L
Sat Jun 15, 2019 12:18 pm
Forum: Equipment & Technical
Topic: Stock Makers in Australia
Replies: 9
Views: 781

Re: Stock Makers in Australia

As a general rule I find there are few "craftsman" that want to take on half a build. Your chippie mate may well know how to build a laminate blank, but does he know how to build a rifle stock? Is he putting any stiffeners in there? If so, where, what are they made of and how is he fixing ...
by Tim L
Fri Jun 14, 2019 9:09 pm
Forum: General Forum
Topic: New Sporter/Hunter Class...is your club promoting it?
Replies: 60
Views: 4346

Re: New Sporter/Hunter Class...is your club promoting it?

G'day all I've been sitting back and watching how this class could elvolve, and I worried to say the least. It's sad to see that the point of such a class has been overlooked by those putting rules down on paper>............... already we are in the same situation as every other class the NRAA run....
by Tim L
Fri Jun 14, 2019 8:47 pm
Forum: Equipment & Technical
Topic: Carbon and the new AR 2209/4350
Replies: 19
Views: 1294

Re: Carbon and the new AR 2209/4350

Brad Y wrote:Found quite the opposite. Need 0.3gr less with the newer stuff I have. I guess still need to buy large quantities in a batch and re test when changing batches.

I could do with some of yours. Its kind of hard squeesing 51.7 grains in a 308 case!
by Tim L
Fri Jun 14, 2019 6:13 pm
Forum: Equipment & Technical
Topic: sighting in target
Replies: 21
Views: 958

Re: sighting in target

It would be interesting to hear how you go. You never had a chance with the 110s, been there and done thst myself. The 90/95 will go ok out of a 1:10 whilst it has the speed but I suspect it will loose stability at some point. If you think you have a 300 zero come up 6min for 500 and another 4 for 6...
by Tim L
Fri Jun 14, 2019 1:27 pm
Forum: General Forum
Topic: New Sporter/Hunter Class...is your club promoting it?
Replies: 60
Views: 4346

Re: New Sporter/Hunter Class...is your club promoting it?

I only started shooting 12 months ago and wanted to shoot multiple disiplines being fclass/long range and PSR. And being New to the sport I only had a budget of $4000 for everything, gun/scope/safe etc. So made sense to buy a hybrid rifle and shoot off a bipod in FTR, now 6 months in I'm learning t...
by Tim L
Fri Jun 14, 2019 7:57 am
Forum: Equipment & Technical
Topic: sighting in target
Replies: 21
Views: 958

Re: sighting in target

From a 1:10 nothing. He'll probably get away with 95gn for shorts but i doubt it will have the legs for longs. 75gn are suitable for the gun but the short barrel is likely to hinder getting the velocities required for long range accuracy. https://bergerbullets.com/twist-rate-calculator/ With regards...
by Tim L
Fri Jun 14, 2019 7:49 am
Forum: Equipment & Technical
Topic: Carbon and the new AR 2209/4350
Replies: 19
Views: 1294

Re: Carbon and the new AR 2209/4350

I use molly so can't comment on the carbon. I am finding is slower though. An extra 2" of barrel and an extra .2gn of powder to get the same velocities I've been running for 3 years now. It also weighs different. It's hard to explain but its like the kernals are a tiny bit lighter.
by Tim L
Tue Jun 11, 2019 5:49 pm
Forum: General Forum
Topic: New Sporter/Hunter Class...is your club promoting it?
Replies: 60
Views: 4346

Re: New Sporter/Hunter Class...is your club promoting it?

I have been pushing to make this happen since before it was even proposed. Time to push a little harder. One of the main things that needs to happen with this class is to set a realistic brief of what is and isn’t allowed and keep it budget friendly. No aftermarket gear (limited to barrel replaceme...
by Tim L
Mon Jun 10, 2019 7:28 pm
Forum: General Forum
Topic: New Sporter/Hunter Class...is your club promoting it?
Replies: 60
Views: 4346

Re: New Sporter/Hunter Class...is your club promoting it?

I have been pushing to make this happen since before it was even proposed. Time to push a little harder. One of the main things that needs to happen with this class is to set a realistic brief of what is and isn’t allowed and keep it budget friendly. No aftermarket gear (limited to barrel replaceme...
by Tim L
Sun Jun 09, 2019 7:13 am
Forum: General Forum
Topic: E CLASS. BUDGET F CLASS
Replies: 22
Views: 1696

Re: E CLASS. BUDGET F CLASS

F standard a class that was set up in Aus to be a more economical and level playing field. Perhaps should consider changing the allowing of rests. I do believe that they are an advantage but to spend $2000 or more on one is just not in the budget of a lot of shooters. The big heavy brick is not som...
by Tim L
Thu May 23, 2019 7:35 pm
Forum: Equipment & Technical
Topic: Ftr stock what’s the best.
Replies: 17
Views: 1053

Re: Ftr stock what’s the best.

Shooting a 223 I'd have to say stock design is of less importance. There were many discussions on what was needed to shoot heavy projectiles. The general form adopted was a stock that runs straight back into the sholder (ie with no drop comb). Wilddog, Dolphin in alluminium are examples of this. I g...
by Tim L
Sat May 11, 2019 9:05 pm
Forum: Equipment & Technical
Topic: Is my scope Broke ?
Replies: 35
Views: 2585

Re: Is my scope Broke ?

I always find scope testing so weird...I never take my scope and bang it on something or throw it down the field, I stick it on my rifle and shoot it...why don't they test them that way....the vibrations going through the scope will be very different. Everything I've read and experienced so far...m...

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