I hope those SIG's are decent, best price in-stock here for $176.79/200rd Shipped! (88¢ rd.)

djones and his TNT's

Well I seen Wilson Combat has a new video out with Bill testing the 125 Maximum Expansions!


I jumped over to ShopWilsonCombat to see if there were any in stock..
To my surprise they are, and they're even 25% off!
125 Maximum Expansions
Get you some!

Can't wait to see what you fella's bag with the HAMR this season!

Im also interested in performance of those 125 Sig Sauer rounds on hogs.. I could load Bullet #1 with 130 hot cor (good bullet) and just spray with the cheaper Sig Sauers'.. anyone have any experience? I think those are 125g match kings

I have already taken 3 does with the 300 Ham'r and the newest bullet the 112 gr TXC. I acquired some to try out. Three shots, three dead deer. Shots were 160 yds to 176 yds. One was a bang , flop dead. The other two ran about 50 to 60 feet and that was because of the nut behind the trigger. Thanks Daniel

I noticed the new 125gr Maximum Expansion projectiles say the are for 1:12 1:13 twist.... Do they lose stability or performance in a 1:15 twist? When I placed my order for my 16 and 18" barrels I was told that the 1:13 was only necessary for 150gr heavies or extreme cold temperatures. I'm actually pretty bummed I didn't purchase 1:13 in both for so many reasons.

The current production Sierra 125gr SBT PHs are pretty tough, don't expect a lot of expansion like the original gave. BUT, they are super accurate.

We make the Max Expansion in two versions for the HAM'R to optimize terminal performance one for 1-12/1-13 twist and one for 1-15 twist. Overall the 1-15 is still the best twist rate for this cartridge with 16" or longer barrels.

Is this the bullet loaded in the SIG Sauer 300 HAM'R 125gr Soft Points?

Sierra Pro-Hunter #2120

Yes with the addition of a crimp groove. The original 2120 has been disc and replaced with a version with a thicker jacket.

Thanks for the info on this! Sounds like an excellent bullet for the range, but not the best for hunting.

110gr Hornady SP over 27.8gr of CFE BLK. Didn’t have chrono to check velocity.

I read once that 1680 is better for accuracy. I

From a post on 12/30/22:

Which specific recoil spring do you use in your ARs? Is it the Wolff Extra Power Buffer Spring, or something else?

I run a 37 coil chrome silicone flatwire buffer spring (WC SKU #TR-FWBS37) and a standard buffer. Chrome silicone flatwire springs have a VERY long service life. You could run a Wolff XP no problem.

Thanks! I didn't realize Wilson Combat had an extra power AR-15 buffer spring.

How would you compare the strength of this Wilson Combat flat wire spring against the Geissele Super 42 braided wire spring?

It's definitely good that the Wilson Combat flat wire spring can be used with standard buffers, as compared with the Geissele braided wire spring that requires Geissele proprietary buffers.

We also have a stainless round wire that's +10% over a std USGI spring, this is what we ship in most rifles we build

Sorry, I've never sued the Geissele spring

I could not figure out how to edit my last post, or I would have corrected the Gas Tube from Carbine Length to Rifle Length. Working on multiple projects it is easy to mix things up.

Rifle Information:
Anderson Lower
Aero Upper
Barrel 18" SHAW with 1/15 Twist
Radian Enhanced BCG
Rifle Length Gas
Non-Adjustable low profile gas block
MagPul MOE Rifle Stock
Standard Rifle Buffer and Spring
Unknown 15" M-Loc Forearm, comparable to a 15", M-Loc Stern Defense.
Leupold AR Cantilever Base
Weaver 2.5-10X 30mm Tube Classic Extreme Scope
MagPul 20 and 30 Round "300 BO" Magazines. I need to get a 10 round Mag for it.

I ended up loading 50 rounds as follows:
Starline 300 HAM'R Brass (NEW)
Bullets Speer 130 HP-V
26.0 grains of CFE Black
CCI 400 Primers

It took a little longer than expected to get the HAM'R up and running. My "NEW" Redding Die Set must have been made on Friday. It came with a 9mm Luger sizing die in the box. The Seater Die did not have the Lock Ring installed either. It was loose in the Die Box. Redding did send the correct Full Length Sizing Die, so I am now up and loading.

After work Wednesday I ran 15 rounds through her. I first cleaned the new barrel, then cleaned after every 5 rounds. I ended up installing my 2.5-10X Weaver Classic Extreme Scope on it, which is what I plan to leave on it. I got a fair Zero the first five rounds. I then shot 5 at 100 yards on Steel, then another five on 150 yard steel. No chance for anything that resembled accuracy testing. Heavy Overcast, and a stiff wind. I was checking for function, and doing break-in. It ran fine by the way.

It was ejecting at approximately 4 O'Clock, and was stacking the brass on the concrete floor probably 8 feet out, firing from a bench setting, off a bipod. The way the brass was on the floor, I believe it could stack the cases in a cat litter box.

The Weatherman is predicting Rain the next couple days. And it looks like the forecast might be correct for a change. I may load another 50 rounds to test out. Again 130 Speer HP-V Bullets. Probably 25 rounds loaded with AA1680 and another 25 rounds loaded with Shooters World Blackout. I will probably load both powders at 26.0 grains and see what they will do.

I have a 300 HAM'R" marked both sides" Dust Cover to install. I will probably work on installing it while it is raining the next couple days.

Bob R

Bob... Looks like you have a good handle on your 300 Ham'r project. My only suggestion is to get 200-300 rounds through the rifle before working hard on accuracy. It's always a good idea to use the same 30-50 pieces of brass for each load so brass life/problems will reveal themselves. I have only used CFE BLK with CCI 450 primers and can't comment on other powders & primers.

hamr is gaining in popularity

I got my copy! Looking forward to reading it.

Today is the last Saturday we have to work on stands before the Missouri Firearms Deer Season. My brother and I will work on deer hunting spots the next couple days. I have two ladder stands that need the Straps Replaced just to be safe. I checked out my tower stand last week. It could use a going over and brooming out. My plan is to shoot the HAM'R again Monday.

So far I have fired 30 rounds total through the HAM'R, and it looks to be running fine. I still have 20 rounds of the:
Starline Brass (New Full Length Resized & Preped)
2.170 OAL
130 Speer HP-V
26.0 CFE Black
CCI 400 Primers
Load left to fire. I also have 25 Rounds of the following two loads to fire:
New Starline Brass (New Full Length Resized & Preped)
2.170 OAL
130 Speer HP-V
26.0 AA1680 (New Production) (25 Rounds)
26.0 Shooters World Blackout (25 Rounds)
CCI 400 Primers.

I noticed that 26.0 grains of all three powders fill the New Starline "Full Length Sized" cases pretty much the same. Part way into the neck, so very slight compression. I believe Bill's Data shows a Maximum Load of 26.2 using the Speer 130 HP-V Bullets and CFE Black. From all of my reading, and notes. I will probably go to 26.2 as my Maximum Load, and not try and go any higher.

I have found loads using the 130 Speer Hot Core Bullets listing 27.9 and 28.0 as Maximum Loads with 2.175 OAL. With the amount of case fill that I am getting with 26.0 of CFE Black, it looks to me like the loads showing 28.0 would not fit in the shell case. Possibly thinner brass, previously fired cases that have been neck sized only. Just speculation on how this was done.

My plan is to get the Chronograph out as soon as I get a chance, and nice weather. I will try out all three 26.0 grain loads to start out with. This should give me a better handle on what all three powders will do behind the Speer 130 HP-V bullets. So far the Primers look good, so I am sure that I can wind up the loads a hair more. Bill's Maximum Load of 26.2 should be what I would consider to be the maximum load based on case fill. It should be interesting to compare all three Powders from the same 18" Barrel under the same conditions, and see what they will do. I am pretty sure that I will not go past 26.2 of any of the Three Powders. That should be about all the Case Fill without overly compressing the loads.

I may see how some different primers affect velocity as my load development progresses.

Bob R

Go get 'em Bob. Hope your hunt is fun and successful. On top of that I'm anxious to hear your results with the testing.

.... and please post pics of your harvests!

With a resized case (RCBS FL die and verified with Wilson case gage), I find that at 26.5gr CFEBlack is a full case when loading with a 125gr TNT loaded just shy of magazine length. Definitely a bit compressed at 27.0gr of powder with this bullet..

Side Note: I was interested in my chamber 's length, and tested it with cases of varying length. I separated my upper receiver and dropped each empty case into the chamber and pressing the BCG closed using only my thumb with mild pressure. My chamber would not close easily at 1.619". This is longer than SAAMI max, and considerably longer than the factory brass as 1.595" - 1.600". I think that I will trim my cases more in the 1.610" range.

I have been wanting to try the 95gr Lehigh. Data shows SOCOM for powder but I’m not having much luck locating any of that powder. Would H4198 work? Wanted the best velocity for pegging coyotes at 100+ yards. Anybody with any experience or advice?

H4198 is a NO GO for HAM'R, too bulky, A1680 is the best 2nd choice

Question for Bill

I have a brother interest in doing a HAMR in a Bolt Gun. There seems to be a preference for the Ruger American Ranch Rifle. Just out of curiosity, why the Ruger as compared to something like the Savage model 110 or Axis II?

Thanks

I can answer that. Because the Ruger will eject the spent casing reliably.