300BlkTalk

gomeybear wrote: ↑

Tue Dec 31, 2019 7:45 am

Ive fiddled with backing off the crimp feature on the bullet seating die quite a bit; backed it off more than one full turn.

The bottom of my Hornady seating die is 0.85" off the shell plate... Not the bullet guide that floats out the bottom, but the die bottom itself. Just saying for reference.

125gr SST with 17.8gr H-110 and Wolf 223 primers at 2.100" with a 3/4 turn factory crimp into the cannelure shoots one hole out of my 8.3" BA Hanson barrel at 50 yards. I'd need a scope for 100 yards. Awesome load, one of my "go-to" loads. 1922fps from my conservative chrono. Cold soaked and tested ...

That little bit of depth won't mean that much. Your cartridge cases might be running a little short. I trim to 1.358" on the case and 2.100" centers the 125gr SST up pretty good. I'd make it look good before I worried about a few thousandths... because we all know looking good is important. Ya know,...

Sure.

You would need to seat the bullet further into the case, but it looks pretty crunched on already. 

For cast in a Dillon, I run the RCBS 300 Blk size die with the 0.309" expander from a 7.62x39 set ( Decap Unit -.310, but it measures 0.309") and then use the 30 carbine funnel in the powder measure for a little bell.

For non progressive the NOE mandrels in a LEE universal sizer work great.

Really nice looking rifle. I ran a T1 on a 45 deg Larue, offset to an ACOG 4x32 for a while. I thought it superfluous. But consider and think back to what your dad told you the first time he took you bird hunting... After the don't shoot dad part... Probably something like, "Just shoulder the gun, l...

gds wrote: ↑

Tue Nov 05, 2019 3:25 pm

What is that folding brace?

SB Tactical FS1913 on a KNS MCX stock adapter.

The 22 conversions are a blast.

The spring in the CMMG version is really short and hard to get out. If the Ciener is similar, it's probably still stuck in the bolt.

I find the thin side, mark them 180 degrees to the other side. Small groove on head stamp. Rem 700 bolt, insert with mark at 3:00, bolt closes and drags it to 6:00. They banana down and wear the lower throat first. The ideal of the index is to always do it the same. Including seating the bullet, res...

As long as your going to the trouble ... and I haven't done this with 300 Blk yet. I call "Case Symmetry" the uniformity of case wall thickness and "Run Out" as the straightness of the completed cartridge, but that's me because concentricity gets me confused. So, measure the case wall symmetry (wall...