Search found 670 matches

by Barry Davies
Mon Jun 04, 2018 5:20 pm
Forum: Full-bore/Target Rifle
Topic: hey blokes
Replies: 12
Views: 827

Re: hey blokes

Never heard of one but that does not mean it has not happened. Pretty much unlikely providing users stick to manufacturers recommendations re loads and type of powder, but then everybody does not do that. Heard of a few mishaps ( not omarks ) but that can usually be traced back to user error or just...
by Barry Davies
Fri Jun 01, 2018 7:17 pm
Forum: Equipment & Technical
Topic: Memory Tester - ADI 144gn projectiles
Replies: 5
Views: 230

Re: Memory Tester - ADI 144gn projectiles

Scott,
We stopped using ADI projectiles in 1997 - that was when the Sierra 2155 was approved.
Barry
by Barry Davies
Fri Jun 01, 2018 6:56 pm
Forum: Equipment & Technical
Topic: Memory Tester - ADI 144gn projectiles
Replies: 5
Views: 230

Re: Memory Tester - ADI 144gn projectiles

Last lot I purchased ( batch 17 no crimping groove ) cost around 18c. At that time 18c was considered expensive so moves were made to allow other projectiles , which were about the same price but infinitely better. Some ADI projectiles ( batch 14 for example) were exceptionally good but quality gene...
by Barry Davies
Fri Jun 01, 2018 4:16 pm
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

Much less Alan as even with shouldering there is backward movement -- a shoulder is not a fixed object ( like a tree ) but even then it's only a relative increase, not an actual increase, certainly nothing a chronograph not attached to the rifle would register.
Barry
by Barry Davies
Fri Jun 01, 2018 10:56 am
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

Alan,
Maybe, theoretically, but the question was with respect to " handling " not rifle weight.
Barry
by Barry Davies
Fri Jun 01, 2018 8:37 am
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

How can the way you handle a rifle have an effect on muzzle velocities?
Barry
by Barry Davies
Wed May 30, 2018 4:07 pm
Forum: Equipment & Technical
Topic: Mounting a Nightforce BR on a Sako s491 in .223
Replies: 4
Views: 280

Re: Mounting a Nightforce BR on a Sako s491 in .223

Phil, You need a tapered rail for mounting the scope on. A rail with 20 moa taper would then make your starting elevation at 300 around 12 moa. This would leave you 28 moa for elevating. However you would probably need 26 moa of that to get to 1000 yards --not enough left. That is one of the problem...
by Barry Davies
Wed May 30, 2018 11:06 am
Forum: Equipment & Technical
Topic: Federal 210M Primers
Replies: 3
Views: 319

Re: Federal 210M Primers

Agree with Brett particularly his remarks re red dye.
Barry
by Barry Davies
Wed May 30, 2018 11:01 am
Forum: Equipment & Technical
Topic: Sierra 2156 base to ogive
Replies: 6
Views: 301

Re: Sierra 2156 base to ogive

Like all projectiles they vary.
Gyro's pic shows them at 0.390".
I have several batches and they vary between 0.456" and 0.474"
Within a batch, no more than 0.002" variation.
Barry
by Barry Davies
Tue May 29, 2018 10:57 am
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

Might as well join the fun. ! A point on a standing ( sine ) wave where amplitude is minimum. 2 Yes 3 4 4 No 5 Maybe but would not bet on it. 7 CW 8 Yes 9 Fouling or significant atmospheric change. 10 Clean or retune. 11 Absolutely no idea. 12 Normal vibration pattern 13 Short --3, Mid -- 5, Long --...
by Barry Davies
Thu May 24, 2018 5:12 pm
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

I always thought that the best point of exit of projectile from the barrel was the antinode. The node is the point of maximum velocity of vibration where small speed variations of the projectile cause the largest elevation spreads. The antinode being that point where the vibrating barrel changes dir...
by Barry Davies
Wed May 23, 2018 8:29 am
Forum: Helping F-Class to Grow
Topic: PRS IS COMING , WE HAVE TO EVOLVE !
Replies: 112
Views: 8307

Re: PRS IS COMING , WE HAVE TO EVOLVE !

It's a great pity that not all clubs see it as you do Mick.
Barry
by Barry Davies
Thu May 17, 2018 1:45 pm
Forum: Equipment & Technical
Topic: More on Barrel Tuners
Replies: 147
Views: 5738

Re: More on Barrel Tuners

Take note that with positive compensation it is only applicable to one single distance. At all distances before and after vertical spread still occurs. So for total control over vertical spread you need to compensate at each distance, which can be obtained by various methods, eg, load variation, sea...
by Barry Davies
Thu May 10, 2018 8:18 am
Forum: Equipment & Technical
Topic: tell me about tuners for fclass
Replies: 94
Views: 3825

Re: tell me about tuners for fclass

My experience with tuners is that they will not replace tuning on load and seating but are good for that final " fine tune "
The best tuner in the world will not tune a poor load / seating combination.
Barry
by Barry Davies
Tue Apr 10, 2018 2:04 pm
Forum: Equipment & Technical
Topic: LAPUA 308 BRASS
Replies: 21
Views: 1656

Re: LAPUA 308 BRASS

Return to place of purchase.
Quality control non existent.
Barry

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