Sorry dryflash3!  Yet another old age induced brain fart.

Were you able to get oil on the bearings? How?

Blade is going in the right direction.  Also I did tighten the set screw on the drive belt sprocket.  Probally will just take this one back for another one this next week!

How many loadings do you think I can get out of reformed LC brass that's been annealed?  I haven't seen any pressure signs on them, and so far I've loaded them on the lower side (110 grain bullets with 19.0 of Lil'Gun, 150 grain bullets with 15.5 grains of Lil'Gun, 230 grain lead with 8.7 grains of Lil'Gun) and probably have 4-5 loadings on some of my brass now.  Should I toss them after the next shoot, or go until I start seeing some case deformation or the primer pockets get loose?  As they are now, everything still seems to be in pretty good shape, but I'd rather not have a catastrophic rupture and tear up my SBR.

in my experience I will get a crack in the mouth before anything else.  I run em till I see a crack and then toss them.

Yeah... just take it back and tell them it's not working right.  I've exchanged 3 of the saws and no issues from HF either time.  The time I bought the $4 warranty... I'm still on that saw.  But I keep a spare in the drawer as they seem to fail at about 10pm when I'm working brass.

 

It's really dead now, belt broke.  May look at their 5" cut off saw.

Tag

Still looking for opinions on this

I see everyone saying to use Remington 7 1/2 primers but why can you not use CCI 400 small rifle just like I would for 223?

by removing the blade and the drive pulleys.. used a tiny drop of ancient machine oil from my grandad's gunsmithing kit...

btw.. got out to play a little bit today, hardly optimal conditions.. shooting from the back of my Suburban using a sack of corn on the tailgate for a rest with the wind and rain buffeting the truck quite a bit. Basically conditions sucked out loud...
I managed to get some very impressive strings of 5, best group of the day was 0.896" from 100 yds.
110gr TSX, flat base
17.4gr of IMR 4227
CCI 450 primers
COAL was 2.055"
I think I have a gas problem though, rifle ejects, cocks hammer but will not strip a round.


Gonna load some more later tonight and continue upping the charge .2gr per set. Kinda nervous though.. 17.4gr pretty much fills the case.. I'm not real fond of compressed loads and increasing the COAL causes issue with the bump in the magazine...

More to share as I get my 'chit together...
Anybody have any info on using 150grTTSX's with IMR4227?

edited for fat-fingered typo..lol

I'm using the Wolf SRM primers.  They seem to be doing fine as I haven't had one that didn't go bang yet.  Haven't chronographed anything yet, though (don't have one)



 

Anyone ran any lead bullets with Hi-Tek coating on them ?

I just got a Lee 230 grain Blackout mold to try out and was thinking of giving them a moly coating.  Will try to cast some this weekend.

On a side note I did return the HF mini-chop saw and the new one works very-very well!
Thanks guys for the help!

Yep, they are pretty sweet.

Wondering about 155gr, there's a mold group buy going and kicking around grabbing a mold for 300blk and the 30x6.8 when it comes out

Can you IM a link?

The one in my picture is an Accurrate Molds' mold.

same here, please. Would be interested to see what it was about.

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g/b link

What is sooo special about 300blk that it's deemed that all must post in same thread ?
shouldn't we the have a ""Giraud Annealer Master thread" ''Giraud Trimmer Master thread " " RT1200 Master thread " or is this a pet project

Gigs you really do have a great idea, but I think intill it's someone elses thought it's not going to happen.

Tac-TSX 110 grain bullets loaded to 2.25".  LC mixed brass, Wolf SRM primers, brass has been annealed.  Loaded on a Lee turret press with the adjustable charge bar installed (just easier for me to use, IMO)





Tipped (T-TSX) bullets (also 110 grain) loaded to 2.07" as from what I could tell is where the bullet hit the rib in the right place.  Have yet to shoot any of these yet (had a nasty cold since last Friday and haven't had a voice since Monday afternoon).  Same brass and primers as above.  The Tac-TSX bullets are pretty darn close to filling the mags (20-round straight on bottom and 30-round P-Mag on top).




Lee FCD is used on them all and I give them a medium crimp (you can see a ring, but it's not too much... the collet aren't closing all the way on it).  I've found that anything less on my brass tends to leave the bullet a bit too loose for my comfort (you can push it back in with a bit of force applied).






 

Finally got to shoot my 300BLK pistol this morning... why did I wait so long?  




 

The extractor positions are different on the 223 bolt and fireball/blackout bolt.

It is not a question of bolt face diameter, whether the case is sized for the bolt.  It is where the extracted case is oriented when it is withdrawn from the chamber.  The fireball/blackout case is so short, if it were extracted upon the same path as a 223 case through the right side bolt lug channel, it will swing so far right to contact the receiver, it will fall off of the bolt face.  

The fireball/blackout bolt withdraws the extracted case up away from the lug path making contact with the front receiver ring, where the distance is short enough to keep the case on the bolt face, and is ejected upwards out of the port.  If you look at this photo, you can picture where the extracted case is oriented.

I have built several of these, and was lucky a Sako extractor conversion "fixed" the first one I had built on a .223 action.  A call to Remington will verify exactly what I am mentioning in this post.  The bolts are most definitely different.

Thanks for stepping up.

Now we might get some real life answers.

This is from AAC's little brochure.

Don't know what else I can tell you, I posted exactly what I was told from tech support at Remington.  There was a post here saying the two bolts are the same.  I posted a pic showing that the bolts are in fact different.  I posted exactly why I was told the bolts are different - why there was more to it.  I mean, the pics don't lie.  Of that, there is no doubt.  Maybe you could call Remington and ask.

Seriously though, I am happy for you that your conversion works with a .223 bolt.  Some will work, some will not.  Mine did not, and I met four maybe five people on other boards who had the same problem I did.  To my knowledge, the Sako extractor conversion fixed them all.  Here are three links that might better assist you to understand the problem.

.300 Blackout problems Rem 700 .223 Bolt from 300blktalk forums

.300 Blackout problems Rem 700 .223 Bolt from Snipershide forums

.300 Blackout problems Rem 700 .223 bolt from Saubier forums

Anyway, this is a technical forum, and the bottom line is the two bolts are different.  .300 Blackout conversions on Remington 700s with .223 pattern bolts may or may not work.  It is up to you to decide if you want to take that chance after spending a few hundred dollars on the conversion.  If you want the odds on your side, build your rifle with the correct bolt.  It is what Remington installs in their factory .300 Blackout model 700.      

I am having trouble getting my Pistol gassed SBR to run reliably with subsonic.

I have worked my load up to nearly the published limit for the powder I am running and it still cycles properly only 3/4 of the time.

Load data
- 10.3" bbl
- Pistol Gas
- 220gr SMK Bullets
- CCI Small Rifle Primers
- 10.3gr IMR 4227 Powder

The published limit (Hornady Manual) for this bullet weight is 10.5gr and the next Lee auto disk will take me above that limit.

I am getting no excessive pressure signs but I am leary about exceeding the published numbers.

I've read that pistol gassed rifles are a lot more flexible with powder choices for subsonic loadings, but I have not been able to get mine to cycle with anything other than AA 1680.

have you tried Lil gun?  my 230's cycled fine with 8.7 grains of it. using a 9.5 core15 ss barrel, btw.

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I haven't tried Lil gun, I'm using the same barrel too.
I've switched to a lower-power recoil spring hoping it would make a difference, but no luck.

The faster burning powders are a bit quieter, but I've given up at this point.

You guys need to do more digging.... everyone that has reliable subsonic reloads is mainly using lil gun

FWIW, I'm using the stock buffer spring, but the Spikes buffer.  It cycles just fine and the BHO on the last round never has a hiccup.  Don't give up on it.  Just get a lb of Lil Gun and start loading with 8.5-8.7 grains of it.  One pound of it goes a LONG way at 8.7 grains a piece.

Do you have a link to that brochure?

the reason I ask is because I found this on the home page of www.aac300blackout.com

Thinking of getting the Lee 230gr  Blackout mold.  Should I size these to .308 or .309. diameter or just use them right out of the mold with a pan lube?

from extensive testing I have found that the BCG and the buffer+spring have a huge effect on reliably/unreliably cycling subsonics.

here's the combo i've found that works the best across multiple ARs:

carbine buffer (~3.0oz)
carbine spring
semiauto BCG

Shot a few different loads this afternoon through the 9.5" Core15 SS barrel on the SBR... not great conditions as I was on some rough ground proned out, but hey... it'll give you an idea.  Also, I found out that the last time I shot the scope mount's rear screws were loose some, so after tightening them up it's shooting a bit right now at 50 yards...  Anyway, here we go.

Tac-TSX bullets were all loaded  to 2.250" OAL.  Wolf SRM primers used in all loads as well as Lil'Gun powder loaded with a Lee Turret press using their micro adjuster bar for powder dispensing.  All loads also received a medium crimp with the FCD.  Tipped (T-TSX) bullets (blue tips) were loaded to 2.07" and received the same treatment as the black tips.

First up, what I shot the last time to sight it in:  19.0 grains of Lil'Gun under the Tac-TSX bullets.  This was the last group I shot, btw, and my back was killing me, so I dropped one pretty bad and I was having a hard time staying still since my back was throbbing.  Was shooting for the black square and the 1-4X Primary Arms scope's dot pretty much covers up the 1" square at 50 yards.  That's 5 shots, though.  Sorry it tore the paper a bit, but the target was stapled against a piece of white oak I pulled out of the pile.



Next up are the rest of the loads.  All were 5-shot strings.  The TAC-TSX load on the top (19.5) knocked down the log the first two shots, so I had to run up the hill and stand it back up again.  I finally put a piece of poplar behind the white oak after shot two of that string.  The first two shots were the bottom two and then next 3 were fairly close together, but high and right.  I'd give that load another try, probably, and see if a better rest (and not having to run up the hill a couple times) would improve the group.  I have no idea why the 19.9 Tac-TSX bullets strung almost perfectly vertically except for the shot I screwed up on (called it).   The 19.9 T-TSX load did pretty well, though except for one shot I dropped low.  Four of them ended up in about a 3/4" square....  That was the one that penetrated the furthest, btw...  more on that later.  ETA:  One of the 19.5 grain T-TSX loads was just BARELY sticking out the top of the log, so I dug it out.  So, the extra .4 grains of powder, in my case, helped it penetrate another 1/2" or so of white oak plus 1 1/2" of poplar.



As you can see, it *really* liked the 19.0 grain T-TSX load (blue tips).  I called the one dropped shot out of the group as I pulled off big time.  I was surprised at the Tac-TSX loads not doing any better than they did... oh well.  Either way, it definitely liked that one.  

The 19.9 grain Tac-TSX loads penetrated right at 3 inches of white oak logs.  Not too bad.  Wish their accuracy was better.



Looking around the back of the log, though.... what's this??  Turns out the blue tips penetrate a little further than the black tips...  They exited after going through 5" of white oak log and then went another 1 and 1/2 inches into a poplar log.  That's fairly impressive.  That was the 19.9 grain load, though.



Here are the rounds I was able to pull out of the log.  Some of them are a bit mangled for some reason, but this is what they came out like.  FWIW, a couple of the blue tips actually ended up butt-first into the poplar log, so they tumbled during their path through the oak.  That would cut a pretty big wound channel in an animal if it acted the same, but I haven't shot anything to confirm yet.  Black tips on the right.  Blue tips on the left.  As you can see, the black tips do seem to expand a bit more, but the blue tips penetrate a lot further (almost double the distance through the wood from what I can tell).  I wouldn't want to catch either one of them, though.  They'd both make a mess.



ETA:  There's some lead smears on the T-TSX bullets because they impacted some .22 bullets that were already in the log from earlier shooting.  That's the reason for the silver streaking/smears on them.

Here you go: http://www.advanced-armament.com/assets/images/pdf/manuals/300BLK-AACUpper-MiniBro.pdf

Thanks.  I just wish the TAC-TSX bullets grouped better for me...  The 19.0's do ok, and the other day when I had a good rest and my back wasn't so messed up I was able to "stack" a bunch of rounds basically on top of each other at 50 yards.  Today, though...  it was rough.  At least I got one really nice group out of the mix.  Too bad the T-TSX's shoot so much further to the right and lower compared to the TAC-TSX bullets with the same powder charge.  Seems odd, but I guess every bullet design is different.  Would be nice to be able to use the same scope settings for each so I could use them interchangeably.

Okay, rsilvers seems to have posted two different COALs for the 220gr SMKs.  What are people using, the older 2.089" or the newer 2.120"?  I'm loading up my first sub test loads and I wanted to see if anyone ran into specific problems with either length.  I find it interesting that the recommended COAL changed, but the powder charge stayed the same...

I could be wrong but I wonder if the difference is loading for a .250" ogive in a USGI magazine versus a PMAG as the rib is slightly farther back in a PMAG?

FWIW, in limited testing so far loading to the rib in a USGI magazine(.250" ogive) I haven't had any issues firing in a PMAG.  I actually haven't even tested using a USGI magazine.

Alright - I've got the ribs removed from a few of my PMAGs anyways, so I'll just run my subs at 2.120" and change if it I need to for accuracy or stability for any reason.  Anyone measure the COAL of Remington factory subs?

ok new design, ready to test..

they came out to be 240gr total weight. and according to quickload 9gr of AA1680 should be just subsonic. Going to try and get it gel tested tomorrow. if the to do list gets cleaned out. and no you cant have any don't ask..