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Regarding magazines, I would like to try using Grendel mags with a 2 diameter bullet (like the SIG 300 BLK) that will fit the magazine rib.

Look up Type I & II Grendel bolts. The best option is to recess the bolt case more so there is more extractor. From what I've read, that is what Colt and the better Grendel bolts are, but most...

Finally got out again. I rolled the WC860 from about 0.020" balls to about 0.010" flattened balls (rolled again from last post). I used 4-6gr. of H4198 kicker. The most surprising result was that...

P.S. Be careful using a Magnetospeed with these loads as it will powder blast it.

I did 223s with 4195. I'm on a project away from home, so don't have the specifics on whether it was IMR or H4195, but they're not drastically different (unless you're at max loads!). Same for the...

Sorry if I missed it looking through the posts--could you explain how you expanded the necks? That's a lot of expansion.

Old thread, but good info and I have found need info on old threads. I have posted here before about decent results but low velocity. Most recently, I tried some powder I rolled to flatten the...

This looks like it is from [URL="https://www.africahunting.com/threads/700ne-double-rifle-i-need-help-finding-ammo-or-components.25362"] or the referenced site. They are 700 Nitro Express cases made...

Outpost 75, it sounds like you have experience with Dacron in the 50, which I assume has a muzzle brake. I have been wondering about this and found this post. There have been no problems wiht the...