OzFclass

has anyone noticed an increase in black fouling with newer lots of 2213sc.
i cannot say absolutely, but i feel that i am having to do a lot more cleaning lately to get out carbon.
i fouled out at a recent prize shoot, and have never done that before.
bruce moulds.

are you still running at your low node? i found that powder fouling dramatically reduced once i started working at the upper end with 2217sc anyway.

hi bat,
what you say has been my general experience over the years.
but this is different. the higher the charge, the more stubborn the fouling becomes to remove.
lower charges give plenty of it, but it comes out pretty easily. higher charges make fouling that bonds to the bore like solder.
up until recently this didn't happen with 13sc.
bruce.

bruce moulds wrote:hi bat,
what you say has been my general experience over the years.
but this is different. the higher the charge, the more stubborn the fouling becomes to remove.
lower charges give plenty of it, but it comes out pretty easily. higher charges make fouling that bonds to the bore like solder.
up until recently this didn't happen with 13sc.
bruce.

Bruce I'm using it as my fave 284S powder and have very little fouling and its easily cleaned out. I found this to be the case on both my 7mm barrels with powder lot MEM4647. I am about to change to powder lot MEM4810 and will let you know if its any different.

What powder lot are you having problems with?

Ian

hi ian,
the new stuff is mem 4810.
will be interesting to hear your results. maybe it's something i am doing.
what do you clean with?
bruce.

Bruce the main dif between 4647 that i just ran out of, and the new batch 4810 was the speed and perhaps a bit dirtier. with 4810 i picked up another 50 f/sec which pissed me off as i was getting vert , so back to the croney to load develope again that was when i discovered the speed and ES dif between the new and old ..

might be worth running a ladder with ar2209.
it always worked well in a previous barrel, both for accuracy and cleaning.
bruce.

bruce moulds wrote:might be worth running a ladder...

I'll be doing a couple of ladders later this week weather permitting. I do mine at 500yds with 0.1 gn intervals and get velocities as well. What's your recipe Bruce?

Alan

hi alan,
0.3 gn intervals in 284 sized cases, & 0.2 intervals 6.5x47 & smaller cases.
it's always good to get speeds too.
500 seems a good range.
bruce.

bruce moulds wrote:hi ian,
the new stuff is mem 4810.
will be interesting to hear your results. maybe it's something i am doing.
what do you clean with?
bruce.

I use Butch's Bore Shine!

Ian

I have heard some North QLDers not liking 2213SC during humid conditions as it was supposed to build up hard carbon fouling. I would say the temperatures where you are might not be as high as in North QLD in the wet season, but I wonder if the damp winter air might be causing fouling problems with some ingrediant in this powder???

since the last report,the low node of 53 gn has proven not to foul badly.
moving up a node to 55.2 gn has repeated its bad tendancy. wonderfully accurate for the first range, then elevation next range.
the first wet patch down the barrel felt like it was going through a bit of 80 grit abrasive, and a lot of cleaning required to smooth it up.
luckily a ladder using 2209 produced a good node over a range of 1.2 gn, so we'll see if that is a better deal.
bruce.

the 2209 node proved to be a good one.
after shooting 2 ranges, the first wet one down the bore felt quite normal, and the barrel cleaned up well.
of interest is that boretech eliminator had been ourchased out of desperation and was used this time.
when cleaned as per instructions, the barrel looked clean and felt clean.
a check with hoppes no 9 (10 strokes with a bronze brush) however, revealed black krud.
this is by no means a criticism of boretech, as i had not anointed the bore and stored it as per instruction, which might get out that last bit.
it does however illustrate the fact that " old fashioned hoppes" is still a very effective product.
next step is to see how tis barrel settles down from clean.
beuce.

have you tryed wipe out?? apparently that is very good. you can leave it in over night or use an acceleratior for a quick clean.

bat,
no but i have some gunslick foaming cleaner from the sara store which is similar. it is very good in that it saves a lot of rubbing of the bore - more of a soaker.
i put it down a very old badly fouled bore once, and the first foam out the muzzle was already blue. very effective on both carbon & copper.
the point i make is that no solvent is absolute.
one will almost always get out stuff when another does no more.
saw a test recently where ballistol dissolved more jacket copper than sweets over a 24 hr period. so much for the sweets legend.
bruce.