Search found 292 matches

by Gyro
Sun Mar 17, 2019 6:55 am
Forum: Equipment & Technical
Topic: Trigger Identity
Replies: 9
Views: 366

Re: Trigger Identity

6.5x55ai wrote:One possibility is Collings and Bradey of Wellington NZ. Din Collings was a long time highly regarded gunsmith and fullbore shooter.


Yep that could well be the C & B origin. Mike C would know. I think Din made some triggers ?
by Gyro
Fri Mar 15, 2019 5:15 pm
Forum: Equipment & Technical
Topic: NECK CLERANCE - IS IT IMPORTANT?
Replies: 34
Views: 1349

Re: NECK CLERANCE - IS IT IMPORTANT?

Keith, and no doubt proud of it. Pete, thanks for the best explanation of why NOT to have a very fine clearance, that I have heard. Let's agree that a 0.001 is out, but 0.002 is viable. Is a 0.002 clearance more consistent than a 0.004? What do the turners have to say? If you look at the SAAMI draw...
by Gyro
Fri Mar 15, 2019 12:14 pm
Forum: Equipment & Technical
Topic: NECK CLERANCE - IS IT IMPORTANT?
Replies: 34
Views: 1349

Re: NECK CLERANCE - IS IT IMPORTANT?

Yes - some short range BR shooters use a neck clearance such that one never needs a die when reloading. Just remember, however, that 1/ At short range, velocity variation if far less important. 2/ Many are proud of the fact that they only need a dozen extremely select cases at a competition and rel...
by Gyro
Fri Mar 15, 2019 10:07 am
Forum: Equipment & Technical
Topic: NECK CLERANCE - IS IT IMPORTANT?
Replies: 34
Views: 1349

Re: NECK CLERANCE - IS IT IMPORTANT?

But lads there are actually ways you can have the loaded rounds bullet sitting right in line with the bore centre line. It's a whole lot of shagging around to get there and you need the skills and equipment, but it can be done. Benchrest shooters have run "fitted necks" whereby the neck cl...
by Gyro
Thu Mar 14, 2019 3:26 am
Forum: Equipment & Technical
Topic: NECK CLERANCE - IS IT IMPORTANT?
Replies: 34
Views: 1349

Re: NECK CLERANCE - IS IT IMPORTANT?

2 questions. who are the buffalo boys? what is through the headstock and between centres chambering? bruce. I shall refrain from answering your question Bruce about the chambering method as it will take us a long ways away from Johns' topic question here. Maybe start another question on that one ? ...
by Gyro
Wed Mar 13, 2019 5:53 pm
Forum: Equipment & Technical
Topic: NECK CLERANCE - IS IT IMPORTANT?
Replies: 34
Views: 1349

Re: NECK CLERANCE - IS IT IMPORTANT?

Some more waffle from me : for me it's a similar question to asking if a "through the headstock" chamber job is actually better than a "between centres" one. I take it that part of Johns question alludes to the importance of supposedly starting the bullet as perfectly on centre w...
by Gyro
Mon Mar 11, 2019 4:40 am
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

Hello Handbrake. Did you earn that name at your golf club? Can I suggest that at this early stage of your F Open career, you keep to the basics and take developments slowly. Neck turning is an acquired skill. There is much more to it than ripping a few thou off a case neck. Ruining 1 in 3, $2.50 ca...
by Gyro
Sun Mar 10, 2019 6:17 pm
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

If ballistics is a science why is it so difficult to get consensus on issues relating to reloading? I am a relative newbie to F Open using 6.5x47 Lapua and having bought another box of new cases checked the neck thickness which ranged from .0125 to .013. I have tried to get clear advice on whether ...
by Gyro
Sun Mar 10, 2019 9:16 am
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

gyro, you need to start from a foundation, or all else is wasted. as an aside, congrats on doing a successful lapping. my experiences doing this with bullet moulds have not always been happy ones in terms of roundness. bruce. Yes Bruce damn right u need the foundation, which perhaps suggests there ...
by Gyro
Sun Mar 10, 2019 7:47 am
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

But Bruce it just aint that simple. If it was we would all be top shooters. And the experiments the guy put forward about recoil and velocity are surely just another guy trying his best to test stuff. Many have done this over many years. Some do it with Rail guns in a tunnel or a warehouse. It's all...
by Gyro
Sun Mar 10, 2019 7:21 am
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

AlanF wrote:
Gyro wrote:....if you release shots at a target with the rifle not on its NPOA ....

NPOA = natural point of aim?


To be sure to be sure cobber
by Gyro
Sun Mar 10, 2019 5:04 am
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

this is well worth a read. In particular the conclusion. https://blog.ammolytics.com/2018-12-12/experiment-recoil-vs-muzzle-velocity.html I found it fascinating that he measured a forward motion before recoil that he attributed to the firing pin. Conclusions When shooting a precision rifle, preload...
by Gyro
Sat Mar 09, 2019 1:07 pm
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

I lubricate the nk inside with a mix of isopropyl alchohol and fine graphite, with a cotton bud. Just paint it on. It dries in no time. BUT I went to a weekend comp last season and didn't bother with that step and the gun shot lights out ( 60.6 90.12 90.7 60.4 60.7 90.10 ) all at 600 yards except th...
by Gyro
Fri Mar 08, 2019 1:05 pm
Forum: Equipment & Technical
Topic: If ballistics is a science ....
Replies: 42
Views: 1638

Re: If ballistics is a science ....

Realise too the Top shooters have been around long enough to have a pretty good handle on what matters and what doesnt. Obviously they are the ones who are best to take advice off !!! Im not sure how much experience the questioner has .... but even if somebody wrote down all the answers and gave the...
by Gyro
Sun Feb 24, 2019 1:41 pm
Forum: Equipment & Technical
Topic: Pussy pads otherwise known as recoil absorbers
Replies: 19
Views: 766

Re: Pussy pads otherwise known as recoil absorbers

Im in NZ. I will see if I can get a proper name/stock code for it and let u know. We got stacks of it at work. Its magic mate.

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