I'm looking to duplicate the 150 grain Speer Gold Dot WC load. I have the bullets (300blk version) and I have plenty of brass along with CFEBLK powder. Does anyone know what the factory powder/charge is?

I'm looking to duplicate the 150 grain Speer Gold Dot WC load. I have the bullets (300blk version) and I have plenty of brass along with CFEBLK powder. Does anyone know what the factory powder/charge is?

I'm looking to duplicate the 150 grain Speer Gold Dot WC load. I have the bullets (300blk version) and I have plenty of brass along with CFEBLK powder. Does anyone know what the factory powder/charge is?

Varies due to powder lot, but as a FYI I'm personally loading 25.6gr of both lot #2 and #4 for right at 2300fps from my 18"

If I'm reading the label right I have lot #1 (the second row is just a single digit 1). I will do a ladder test with 25.6 as the max and compare groups and velocity. So far the factory loads are grouping right at an inch at 100 yards. I haven't chrono'd yet but if I can replicate their accuracy I will be happy. Thanks for the quick response. One last question I have, going back through the forum I saw mention of a 135 grain speer gold dot bullet? Is there a time frame where we can expect that round? I would expect things to be delayed because of our current situation but if it shoots as good as the 150's I would be interested. It may well prove to be the best "catch all" round just based on some of the numbers I've read about.

SD, welcome to the forum

You can use H110 for light bullets, but you won't be able to get quite as much velocity at safe pressures as with CFEBLK or SOCOM. Most of my experience with H110 has been with the 7.62x40 and I can tell you .2gr can make the difference between a safe and a unsafe pressure load, so be very careful.

As to the different twist rates. Some of the longer 150gr bullets could become unstable in extremely cold conditions at the velocity you can achieve out of a 11.3" or shorter barrel, so we run these with a 11.3 twist. We recently got 1-13 buttons and probably will be offering this twist in the shorter barrels or for customers who primarily shoot 150gr bullets since it's the optimal twist for these.

Bill, I have two 8-inch builds, one for the house and one for the car. I just purchased 800 rounds of nickel 150 gr HAMR Speer Bonded in the last month. Just confirming you're stating these are good to go in the 8-inch with 1-11.25 twist?

Do you ever have ready to ship 300 HAM'R uppers? Seems like every time I've looked there are none. Could buy a barrel but would prefer to prob just purchase an upper.

Bill,

Just a curiosity question as to why you would prefer the 125 TNT for self/home protection vs the lehigh 110gr CC?

That load would have been my last choice for a 8" bbl since that's a tough bullet that needs quite a bit of velocity to expand. If your mission is for self/home protection I'd suggest the Speer 125gr TNT load or if more penetration is desired the 130gr HAM'R HOT-COR which I load my 11.3" with. As far as stabilizing, the 1-11.25 twist rate will stabilize all loads in a 8" down to well under zero F

That load would have been my last choice for a 8" bbl since that's a tough bullet that needs quite a bit of velocity to expand. If your mission is for self/home protection I'd suggest the Speer 125gr TNT load or if more penetration is desired the 130gr HAM'R HOT-COR which I load my 11.3" with. As far as stabilizing, the 1-11.25 twist rate will stabilize all loads in a 8" down to well under zero F

Mr. Wilson question. I am trying to decide between building my .300 Ham’r with either a 11.3 or 14.7 barrel. Which would you recommend between the two barrel lengths as a “Do It All” rifle? This will be going on a SBR lower so no worries about legalities and such. My hesitation with the 11.3” is how much effective range does one sacrifice going that short? With the drop in velocity, I am sure there is a reduced expansion threshold on the bullets.

First, welcome to the forum

I'd go with the 14.7" or a 16" as an all-around choice. The 11.3" makes a nice "pistol" as a truck gun for self-defense though.

It looks like the Barnes 120 might be too long to work well in the 300 ham'r