Search found 403 matches

by pjifl
Thu Nov 22, 2018 10:12 pm
Forum: General Forum
Topic: NRAA Ammo Survey.
Replies: 39
Views: 1989

Re: NRAA Ammo Survey.

BRT had a fairly comprehensive newsletter about Berger maybe 6 months ago. I cannot find a copy. anywhere. If anyone knows how to view their older newsletters it is well worth a read. Best description of the Berger Saga I have read. It is complex. If it ever does eventually resolve itself, that is n...
by pjifl
Mon Oct 22, 2018 9:25 pm
Forum: Equipment & Technical
Topic: Varying powder charge summer/winter?
Replies: 14
Views: 1514

Re: Varying powder charge summer/winter?

ben_g stated Perhaps you thought I was trying to support Tim's hypothesis with my above post, I was simply suggesting the the limited chrono sessions I have done do NOT seem to support the theory. That is a fair comment. I was thinking more in terms of investigating V changes with bore dilation and ...
by pjifl
Mon Oct 22, 2018 7:41 pm
Forum: Equipment & Technical
Topic: Varying powder charge summer/winter?
Replies: 14
Views: 1514

Re: Varying powder charge summer/winter?

Steel heated uniformly will expand such that every dimension is increased in the same proportion. Both the exterior and interior diameter expand. From an engineering point of view this is definite. If the bore is being heated such that heat transfer to the outer surface is much slower than the input...
by pjifl
Sat Sep 29, 2018 1:48 pm
Forum: Equipment & Technical
Topic: 155gr bullet choice for 1:13 twist
Replies: 14
Views: 1312

Re: 155gr bullet choice for 1:13 twist

I am not convinced that the higher twist rates often recommended today are better for competition shooting. You have to factor in that the bullet manufacturers, and many of the 'expert' writers have to give recommendations that cover all shooting conditions - including an Alaskan winter ! The curren...
by pjifl
Thu Sep 13, 2018 1:44 pm
Forum: Equipment & Technical
Topic: Given Current Component Availability...
Replies: 58
Views: 4653

Re: Given Current Component Availability...

I once built up a 22 PPC using 80 Grain Sierras. 1 in 8 inch twist. It was deadly accurate at 300y. For man years John Baxter used a 22-250 over all ranges and did very well with it but it was a serious barrel burner. A 223 run hard with 80 grainers is also a bit hard on barrels. Personally, I now w...
by pjifl
Tue Sep 11, 2018 11:17 am
Forum: Equipment & Technical
Topic: Given Current Component Availability...
Replies: 58
Views: 4653

Re: Given Current Component Availability...

FWIW, I have seen the humble 6BR shoot out to 1200y. At this distance it was not really competitive with a good 6.5 nor a 7mm. But it is am impressive cartridge for what it is. Very good barrel life and low recoil if that is what you are after on a standard boltface. A possible correction for my rec...
by pjifl
Mon Sep 10, 2018 10:55 am
Forum: Equipment & Technical
Topic: Given Current Component Availability...
Replies: 58
Views: 4653

Re: Given Current Component Availability...

I see some suggesting 30 cal either in 308W or something else. Definitely not a silly idea.

I would not be changing 7 SAUM to 308 just to keep shooting, however, unless you have a good source of SAUM brass. This thread is very much related to unavailability of components.

Peter Smith.
by pjifl
Mon Sep 10, 2018 10:43 am
Forum: Equipment & Technical
Topic: Given Current Component Availability...
Replies: 58
Views: 4653

Re: Given Current Component Availability...

I have been recently playing with 6.5s again. Have used 6.5x47, 6.5 Creedmoor, 6.5x55, and Improved 6.5 x55 (Rogue) over the years. In the ultimate competition, none fully compete with the 7mms. They can all shoot very well - and all with unmodified cases. I have moved away from any Neck Turning and...
by pjifl
Thu Sep 06, 2018 10:53 am
Forum: Equipment & Technical
Topic: Question for the Omark experts
Replies: 33
Views: 3512

Re: Question for the Omark experts

Metals are malleable. Under sufficient pressure they flow which is a property of metals specific to the 'metallic' bond between their atoms. It is related to the fact that metals conduct electricity well which allows some of their electrons to easily relocate after flowing - thus still retaining str...
by pjifl
Fri Aug 31, 2018 12:40 pm
Forum: Equipment & Technical
Topic: Cleaning Rods. Coated or not
Replies: 26
Views: 2443

Re: Cleaning Rods. Coated or not

Some of my thoughts on cleaning rods. 1/ I believe that a hardened rod does less abrasive damage to a bore than a coated one. That is referring to damage due to friction in the bore. This is because it does not become ingrained with any hard abrasive such as flakes of Carbon. A hardened steel rod is...
by pjifl
Sun Aug 19, 2018 6:29 pm
Forum: General Forum
Topic: Wildlife on Eco Friendly Rifle Ranges
Replies: 10
Views: 1363

Wildlife on Eco Friendly Rifle Ranges

Not sure where to put this. I have always thought we should push the fact that rifle ranges are quite eco friendly places and a haven to wildlife. I have attached a pic taken today. Some shooting was in progress a few lanes away and our visitor stayed put for some shots. There are a pair and they ne...
by pjifl
Mon Aug 06, 2018 6:17 pm
Forum: Equipment & Technical
Topic: 7mm SAUM Rechamber/Barrel Life
Replies: 83
Views: 5995

Re: 7mm SAUM Rechamber/Barrel Life

And when the US adopted the M17 (the US Enfield) in ww1 with British style rifling, there was much criticism. But it distinctly outlasted the US type rifling favored at the time. Perhaps not quite as accurate but more practical in a battle weapon. But I am not sure this has much bearing on a solidly...
by pjifl
Mon Aug 06, 2018 3:35 pm
Forum: Equipment & Technical
Topic: 7mm SAUM Rechamber/Barrel Life
Replies: 83
Views: 5995

Re: 7mm SAUM Rechamber/Barrel Life

I cannot answer the question because I have not run both my Saum barrels past 800 shots each. My policy has been to use a standard 284 back to 800y, then the Saum at 900, 1000y although enthusiasm did get the better of me the last Queens I shot and I used the Saum right through. I reckon that going ...
by pjifl
Fri Jul 27, 2018 12:29 pm
Forum: Equipment & Technical
Topic: Silver Mountain SOLO ET's
Replies: 33
Views: 3230

Re: Silver Mountain SOLO ET's

When we tested the Mareeba SM target (4 sensor type) in Mareeba there were no active adjacent shots. The log file was used to record reported positions of impacts on the target which eliminated transcription errors and reduced the complexity of the task to something doable. Remember, there were over...
by pjifl
Tue Jul 24, 2018 4:36 pm
Forum: Equipment & Technical
Topic: Scope Advise - 900yd MOA
Replies: 23
Views: 1589

Re: Scope Advise - 900yd MOA

There is no doubt that a NightForce BR can cover the range from 300 to 1000y - even to 1200y for Match Rifle. BUT it has to be mounted with great care to successfully span this range of distances. One extremely versatile option is to use Burris Signature Zee mounting rings which have fine adjustment...

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