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Depends on what the definition of "Useable Barrel Life" is. A 30'ish caliber machine gun generates a LOT of heat on full auto. What is the barrel exchange ratio? (Historically over the last 70 or...

The ground and screened product was placed/spread thinly on bottom of a Glass Pie Pan.

I started with 18.5 Grains of the No.7 powder. It was screened to fall through a 20 Mesh screen and remain on top of a 40 Mesh Screen (20 to 40 Mesh size). I hand weighed powder for each round. ...

Decided to take a slight detour enroute to exploring the No.7 Powder; that being trying it in the .223/5.56 case. The original .308 load data I started with was extrapolated from 8mm Mauser and...

I have been an observer and outspoken about wasteful military spending for many decades; but there is also "More To It" than the simple statement of the cost working out to $10,800.00 each. The...

The IGP was loaded into five .308 Winchester cases (33 Grains); primed with CCI #200 Large Rifle Primers, and topped off with an NOE 311644 boolit (about 206 Grains), that was Powder Coated and had a...

I tried another iteration Golden Powder; using a formula/paper I found for “IGP” (Improved Golden Powder) reputed to provide a higher velocity compared to standard Golden Powder. There is a thread...

Thoughts on Screened No7 Powder

My observations/analysis on the Testing/Screening of the No7 Powder is that larger granules are producing a more consistent velocity and accuracy as a generalized...

Screened No7 Powder 10 to 20 Mesh

Five test rounds were loaded with the No7 Powder that had been dehydrated as previously described above. Screened to fall through ~ 10 mesh and remain on 20 Mesh...

Screened No7 Powder 20 to 40 Mesh

Five test rounds were loaded with the No7 Powder that had been dehydrated as previously described above. Screened to fall through ~ 20 mesh and remain on 40 Mesh...

Screened No7 Powder 40 Mesh & Smaller

Five test rounds were loaded with the No7 Powder that had been dehydrated as previously described above. Screened to fall through a 40 Mesh Screen, resulting...

Translation for those like myself who did not know what his posting meant:

The more chlorate or perchlorate, the stronger the powder will be.

I have opted for the Lee Ram Prime; use it on my Rock Chucker, Lee, and Corbin presses. It might be a little slower than one of the Tray or Tube Primer feeder models; but I find that I can seat...

I have lots of Lee Products and have been using them since the 1970's. The LEE Auto Bench Prime is probably their biggest piece of Bovine Excrement sold. But that's just my opinion.

The trays...

Keep in mind that almost all of the "Gas Ranges" are California Compliant now. That means that if the Electric Power Goes off; the Gas Line gets shut off at the stove and the stove will not cook. We...

I size a wide variety of .308's after powder coating. Seat .014 aluminum gas checks and Size to .310 after powder coating; not seeing any loss of powder coat on drive bands.

Received my Criterion Barrel today. Now will be starting the search for someone to change out the barrels and sights.

For those needing a P-14 Barrel - Criterion web site says they are still...

Not in my experience. Have never measured to test velocity changes, and of course - have never seen any pressure changes between softer and harder lead boolits in my loads. Accuracy is obviously a...

Lot of Kin in Oklahoma. Just for Giggles - Roger Miller grew up as neighbor to my Grandmother on her farm in Erick Oklahoma area. (Famous Country Singer for those too inexperienced to remember). The...

Ran across the article on the Internet last week. Found to be an engrossing read.

Powder deterioration is probably due to a batch that was out of spec somewhere during production. Given our powder shortages and now euphemistically seeming to be reaching orbital trajectories in...

Thats 15.2 cents per - not including shipping. Glad I am making my own at those prices.

See Post # 85 above. So far all the Tests have primers as depicted in that posting. No indications of pressure signatures with 33 Grains of No.7 in a 308 Winchester case with bullets/boolits...

Watching - A question I too have had in mind.
:popcorn:

If one scrolls through the picture; there are a few with corrosion showing through the primer/case junctions - same for the case/bullet jacket junction on at least one. I noted one case that appears...