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6gt

#2,301
John Glidewell said:
Bullshit!!!! Been wet tumbling with steel pins for years without issue. 223 rem, 6.5 creed, 6 creed, three 6 gts, 22 gt, 25 gt, 7/300 prc, 6.5 prc, 338 edge, 338 lm. Never an issue.
Click to expand...

You may not be seeing it - and if so, good for you. You only have to Google "wet tumble peening case mouths" to find threads here and on a number of other forums. In my friend's case, he stopped wet tumbling, and the problem stopped immediately. The only thing he changed was tumble method. Might have something to do with size of the pins, or time he was tumbling, or the tumbler in use, etc. Even dry tumbling can peen the cases mouths, but it takes a lot longer - wet tumbling involves the cases falling on one another, typically, where they just bump into one another in dry media.
 
#2,303
Still messing around with RL 15.5. Shot a 1.512” group at 300 the other day so decided to see what it would show at 400yds. Paper don’t lie.

27” 1-8t
RL15.5 @ 34.5g
Berger 108’s
12-13mph wind
 

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#2,304
John Glidewell said:
Bullshit!!!! Been wet tumbling with steel pins for years without issue. 223 rem, 6.5 creed, 6 creed, three 6 gts, 22 gt, 25 gt, 7/300 prc, 6.5 prc, 338 edge, 338 lm. Never an issue.
Click to expand...

Yep...peening some for sure. Belling a case mouth afterwards in a die like previously stated...um, no, not in my experience...but that doesn't mean its impossible. Issues? No to that either. You'd have to leave that stuff in a tumbler with pins for a long time to create a situation where this is possible.

My biggest gripe with wet tumbling is the time and anxiety of mine that I'm going to send a pin down my barrel at dome point.

I still do it, mostly for pistol now though.
 
#2,305
My .308 cases all flare like that after going through an RCBS FL sizer while doing .002 shoulder bump. Just as previously said, the next pass with a mandrel removes the bell. Id guess it just depends on how the die is built?
 
#2,306
Wolf762x51 said:
My .308 cases all flare like that after going through an RCBS FL sizer while doing .002 shoulder bump. Just as previously said, the next pass with a mandrel removes the bell. Id guess it just depends on how the die is built?
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I'm trying a different die, whidden. I did think maybe the top of the mouth was touching the retaining nut for the decapping pen. It holds the bushing in. I backed the top out about half a turn so there's a little play in the bushing and nut. Giving that a try with a few cases but I can't tell if it's working or something else is causing it.
 
#2,308
hairy_pineapple588 said:
So with Hodgdon price increases again. Who is shooting Vihtavuori and what powder/charge?
Click to expand...

I had great luck with N150 in the 6GT. N140 should be a viable option too.

I thought I posted my N150 results about a year ago here, and I have a new phone now. I'll try to find the old target with load data.

***EDITED TO ADD***

Found the N150 load, guess I posted it in here already about 10 pages ago.

-105gr Berger Hybrid
-Virgin Alpha brass
-Fed 205MAR primer
-1.947 CBTO
*5 shot groups below.

20240509_132433.jpg
 
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#2,312
Gotta love the 6GT, seems no matter the powder or bullets it always shoots good. Had a new barrel spun up and even though my previous barrel still has quite a bit of life in it I went ahead and put the new barrel on. Due to unforeseen things I still had 126 rounds loaded up that I used in the last barrel. Went to the range just to burn up the ammo and get the new barrel ready to go. Shot 65 rounds that day with the last 15 being the pic below.

Proof Comp contour @ 28”
Alpha brass
CCI 450
H4350 35.2
115 DTACS
Manson reamer .120 freebore then throated out to .185 freebore.
IMG_8384.jpeg

IMG_8372.jpeg
 
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#2,313
IMG_8370.jpeg
Here’s the first 50, shot left to right top of red line. Then left to right below red line. Shot 5 per then loaded mag shot another 5 and let the barrel cool while plinking with my AR. Took this pic before really concentrating for the last three groups. This will be my third barrel shooting the DTACS.
 
#2,315
farrar86 said:
@drglock what kind of speed are you getting with that load and what length to ogive are you seating? Im running 34.2 of H4350 with alpha and 115s. Getting 2760-2780 depending on outside temp. Would like to get up into the 2800 range.
Click to expand...
Depending on barrel and lot of powder I’ve run them 2770-2815(seems to be the sweet spot , at least for me). This load in my last barrel which was a 26” was right at 2825ish. I’m at 2.006 BTO measuring with my stuff. On the last barrel going off an unfired barrel I was right at .060 jump. These same bullets in my new barrel are .068 jump. The new barrel will have a new lot of powder and bullets but I imagine I’ll be in the same ball park as the last one. Disclaimer though my last barrel was 35.8 at 2812 but the barrel sped up quite a bit and I think it was because I was at the bottom of my 8lb jug and was getting a lot of fine powder dust in my loads. The last two matches I shot I had to drop the charge down to 35.2 and was still a tad faster(2825fps). Now out of the new barrel it’s all over on velocity just because it’s a fresh barrel. Shot the last 61 rounds the other day and it averaged 2750 so I’m thinking I’m getting close to my barrel leveling off.

Last 40 rounds of my old load in my new barrel at 500 yards.
IMG_8386.jpeg
 
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#2,316
farrar86 said:
@drglock what kind of speed are you getting with that load and what length to ogive are you seating? Im running 34.2 of H4350 with alpha and 115s. Getting 2760-2780 depending on outside temp. Would like to get up into the 2800 range.
Click to expand...
But unless your running a custom reamer or doing like we are and throating it out to .180-.190 freebore you might not be able to shoot the same BTO length.

This pic should give you an idea where we’re at on the neck shoulder junction at .060-.070 jump with a 185ish freebore.
IMG_8449.jpeg
 
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