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by AlanF
Wed Jul 08, 2020 8:17 am
Forum: Equipment & Technical
Topic: Misfires
Replies: 30
Views: 1089

Re: Misfires

No-one's mentioned the possibility of headspace issues. If you aren't jamming the projectiles, it might be worth trying to see if the problem remains?
by AlanF
Mon Jul 06, 2020 9:13 pm
Forum: Equipment & Technical
Topic: 6.6-284
Replies: 8
Views: 442

Re: 6.6-284

I've heard Vihtavuori powder might be available again soon. If that happens N165 is one of the coolest burning powders out there. I used it exclusively for the last few years of my 6.5-284 shooting, up to about 54gn with 142SMKs for velocities approaching 3000fps and barrel life about 1200-1500. New...
by AlanF
Mon Jul 06, 2020 4:23 pm
Forum: Equipment & Technical
Topic: Proj jump - barrel wear
Replies: 7
Views: 543

Re: Proj jump - barrel wear

Brad Y wrote:...the projectile would be pushed forward enough initially that the gas couldnt get past it...
That's debatable. Projectiles are heavy, gas is good at leaking :D .
by AlanF
Mon Jul 06, 2020 2:34 pm
Forum: Equipment & Technical
Topic: Proj jump - barrel wear
Replies: 7
Views: 543

Re: Proj jump - barrel wear

Okay, to help settle a club discussion/argument; does giving the projectile jump (say 0.010") lead to excessive and/or quicker wear of the throat and lands. I believe so, and it stands to reason - more leakage of superheated gas at very high pressure past the projectile will increase the rate ...
by AlanF
Fri Jun 26, 2020 3:01 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

bsouthernau wrote:
AlanF wrote:
I noticed on the bottle it says SHAKE WELL, and not having done that very often, I'm wondering if I'm getting a solution that is depleted in some way.

It's thixotropic and you shake it to make it runny. After sitting for a while it goes back to its normal viscosity.

Just like tomato sauce :D .
by AlanF
Wed Jun 24, 2020 4:44 pm
Forum: General Forum
Topic: Robert Chombart
Replies: 6
Views: 536

Re: Robert Chombart

He certainly made his mark in the design of actions - a very accomplished gentleman. RIP Mr Chombart.
by AlanF
Tue Jun 23, 2020 3:21 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

...Alan, it is my firm belief that a barrel that takes an inordinate number of shots to "settle" after cleaning is not clean at all... Keith, this is just a theory, but if you have a bullet that is a tad too small for the bore (or a bore that's a tad too big for the bullet), then maybe it...
by AlanF
Tue Jun 23, 2020 10:58 am
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

...Do you clean and oil after each days shooting?... I am also keen to hear what Keith says on this. FWIW, I have a general principle with cleaning that if a barrel shoots predictably when clean, clean often (even between ranges). For a barrel that takes a while to settle, learn how long it'll go w...
by AlanF
Mon Jun 22, 2020 7:37 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

Years of observation and experience tells me that the first shot through a squeaky clean barrel will "lay" down as much copper fouling as the next five shots... Another question Keith, in your experience why do some barrels do a high first shot. I often see this for the second and subsequ...
by AlanF
Sun Jun 21, 2020 1:14 pm
Forum: Helping F-Class to Grow
Topic: another discipline
Replies: 25
Views: 7185

Re: another discipline

I remember doing some calculations for an idea at our range which was to shoot 22s alongside F-Class and TR with a portable bulletcatcher at the next mound i.e. 100yds distance. I seem to remember that using standard smallbore ammo, the effect of wind at 100yds was about the same (in MOA) as a 284 a...
by AlanF
Sat Jun 20, 2020 8:37 am
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

Thanks. I patched out several affected barrels last night and couldn't see any rust with the borescope. I then shook the bottle, and reapplied the oil. I'm still interested in what Keith has to say, because he has some strong theories about mixing chemicals. My powder solvent at present is Helmar, b...
by AlanF
Fri Jun 19, 2020 11:24 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

Well there we go again Alan, I just put up a post on this thread for your info on Sweets oil and it went into cyberspace ............once again!!!! Are you sure you don't have the facebook police patrolling this site?????? We will see if this one makes it!!!! Keith H. I would very much like to hear...
by AlanF
Fri Jun 19, 2020 10:13 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Re: Sweet's Oil

Alan, I have used it to oil some other things around the house as a test to see how it settles after a period of time and it becomes sticky brown after a while I have used some WD40 to clean it up Thanks for that info. So its probably not rust. I noticed on the bottle it says SHAKE WELL, and not ha...
by AlanF
Fri Jun 19, 2020 9:34 pm
Forum: Equipment & Technical
Topic: Sweet's Oil
Replies: 37
Views: 2030

Sweet's Oil

Sweet's Oil (in the white bottle) has been around a long time I assume, so many forum members will have used it at some stage. I've been using it for a couple of years when putting barrels away after cleaning. I put a few drops of Sweets on a patch or two and push it the through the bore, then prior...
by AlanF
Thu Jun 11, 2020 7:43 am
Forum: General Forum
Topic: Tuned barrel
Replies: 52
Views: 2850

Re: Tuned barrel

I'd suggest its not only tune that is affected when you change stocks. In my experience, point of impact can be affected by several MOA, in either vertical or horizontal or both.

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