WYO300RUM
Well-Known Member
N570 560 and 565 aren't temp sensitive from what I've read.
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N570 Dirty?
- Thread starter RockyMtnMT
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Lefty7mmstw
Well-Known Member
I'd like to see what rl50 would do on a 199 Hammer... I've been running it (along side rl33) with 225's in my 300 rum's for years... They are both capable of 3K at normal pressure but I have more headroom with rl50. The biggest problem with rl50 is you run out of case capacity at about 102 grains if you want to stay at mag. length. I've never noticed either powder to be that dirty, but I'm also realizing you are touching off around 100 grains of powder in a 30cal.; you are going to have some residue.
lilharcher
Well-Known Member
Very temp tolerant!
Also, didn't find it to be materially dirtier than most other powders that I use.
Lefty7mmstw
Well-Known Member
yup... not seeing a lot of variance with either rl33 or rl50 with 225's in the rums
N570 is def dirtier than RL33 in my 338 rum, takes 15-20 patches w/ C4 and usually a dozen or twenty strokes with a brush to get the barrel clean. Rl 33 was clean in half the patch work. Both were 30 shot intervals. N570 is def better in the velocity area tho. I'm getting 2900fps w/ 300 bergers in a 28" barrel, 2 full grains below pressure, accuracy is sub half moa in multiple seating depths.
WYO300RUM
Well-Known Member
Exactly .
The 100 fps gain in my 7 STW and 300 WM more than make up for the extra cleaning effort. But then I don't clean either gun until I see a drop off in accuracy.
Elk Hunter 338
Official LRH Sponsor
570 Rl33 are super dirty powders! i mean look at the kernel size on that stuff!!
Rockymtnmt is it bad that im getting 3400 in a 300 rum with 181 hammers and not n570??
Rockymtnmt is it bad that im getting 3400 in a 300 rum with 181 hammers and not n570??
I use all boretech products, well not really the C4 that much is fouling isn't bad after break in. But 90 shots? That's crazy......I'm cleaning every 30 and I still have carbon accumulating at the neck/freebore junction of my chamber, it's not growing, but it's not clean either. 28 nosler run hard with heavies prob loses accuracy faster from throat loss than fouling lol
I've been shooting the 180 eldms in it. It was clock work at 90 though. I'm going to have my barrel looked at and see how it's wearing soon.
Hespco
Well-Known Member
Have been using the ultra slow US 869. VV24N41, N570 etc. Dirty perhaps a bit more than some. Performance far out weights any small concern about being dirty. My 264's soars with these powders. I go 30 + shots without cleaning. Has not hampered accuracy or velocity. A small price to pay for top performance.
7.62 Gunner
Well-Known Member
I'm bumping this thread
I worked up a really good load in my 7-300 wsm improved with N570, and I'm having serious carbon issues after 20 shots using a suppressor.
It's so bad that carbon is falling out of the suppressor and denting the case in the chamber!
Never had this issue before
It's a Banish 30 and I took it apart and cleaned it good before load development.
It's a huge PITA to take apart and clean so I'm pretty disappointed with the ridiculous carbon fouling..
Here's a pic of carbon particles around the chamber area, couldn't get a good pic of the inside but pieces were visible with a light
I worked up a really good load in my 7-300 wsm improved with N570, and I'm having serious carbon issues after 20 shots using a suppressor.
It's so bad that carbon is falling out of the suppressor and denting the case in the chamber!
Never had this issue before
It's a Banish 30 and I took it apart and cleaned it good before load development.
It's a huge PITA to take apart and clean so I'm pretty disappointed with the ridiculous carbon fouling..
Here's a pic of carbon particles around the chamber area, couldn't get a good pic of the inside but pieces were visible with a light
