UPS fibbed, got an email telling me package would be delayed till today. Sure did upset a certain person but hopefully it will come today. Daniel

I always vote yes for an adjustable gas block. It's better for everything in my opinion.

Mr. Wilson,

What would a 300 Ham’r do with a 1:3 or 1:4 twist barrel ?

I’ve detected a disturbance in the force with another caliber project for which there is undisputed video evidence of a 1 to 1 comparison of a same weight bullet, same velocity load, used on ballistic gel and the point of the illustration is that 1:3 vs 1:7 , the 1:3 has more terminal “effect” than traditional 1:7.

This is conjuring up some pretty deep emotions within my typically traditional soul…..

Understand, my question is relative to acknowledging that only a very hard bullet may pass through a very tight twist , pause for effect, , so with that said - is there not an opportunity to create a 1:3 twist 300 Ham’R with the disclaimer that only mono metal or bonded (jacket to core) bullets be used.

Thank you in advance for your serious thoughts and fully detailed response to this question - I will standby and watch some DJones videos while I wait to be EDUcated.

Have a good weekend -

P.S. I hope this response comes quickly because I have a short attention span for DJones movies - they’re too horrific with all the DRT and high speed effects - they’re if you’ll allow me say - like a 1:3 twist version of a hog video

with the 125 CC bullets, what about meat damage? Ive heard the old saying about bigger slower bullets "eat right up to the hole".
Not that 125 is big, but copper bullets retain their weight

Seriously, are we not doing Phasing anymore?!

Honestly, I had to re-read your post a couple of times about "Eat right up to the Hole"... did some head scratching. I think I finally understand that you mean by using heavier bullets traveling slower there is less damage (hydrostatic) to the meat surrounding the wound channel so there is more meat for consumption... Right? Definitely the case in favor of using a few more words makes for better understanding, but at the expense of comedy.

We all understand that I am an expert shot and never have to worry about putting an animal down.
BUT, I don't mind meat damage in the shoulder area. Seldom do I even bother trying to harvest the shoulder meat. Most of the time it is severely bloodshot and I'm not in the mood to break a tooth on a piece of bullet.
In fact, it was seeing the damage done on the deer I've shot with the 130 HC that convinced my hunting partners to jump on the 300 HAM'R bandwagon.
After playing with the 125CC for the past month I'm convinced that this bullet will do an even better job of putting a deer down and the accuracy shown is outstanding.
.

PogPopper you are correct that the faster you spin a bullet it typically increases it's terminal performance, however if you over stabilize a bullet you almost always pay a price in reduced accuracy. As an example this is one of the reasons light supersonic bullets in a .300BLK typically don't shoot very well in 1-7 twist barrels designed to stabilize heavy subsonic bullets. I'm playing with a 1-13 twist .300BLK bbl designed for supersonic use ONLY and it will shoot groups 1/2 the size of a 1-7 twist with 95-115gr bullets.

Theoretically one of our 1-13 twist bbls should have better terminal performance with the same bullet than a 1-15, but in the real world of killing game I have not seen any difference at all. The rifle I hunt with the most has a 1-15 twist barrel and if I place my shot properly it kills everything I shoot effectively.

When we originally developed the cartridge I tested 1-11, 1-11.25, 1-12, 1-13, 1-14 and 1-15 twist rates and found all to shoot acceptably well, but the 1-15 shot the 110-130gr we originally used for development the best. Now that we use a lot of 150gr and longer copper bullets we've found the 1-13 to be the sweet spot for them while still shooting the 95-135gr well. This being said I still have a 18" 1-11 twist upper and it shoots pretty good too.

Bottom line, I don't think any potential increase in terminal performance would be worth the loss of accuracy that you would get by over stabilizing the bullet.

Two of the four I dropped three weeks ago. We noticed reduced numbers where we hunt as well. Our 7 man group only managed to get 5 total. 80% of those being mine with the .300 Ham'r and 135 FTX's. All neck shots, dead on the spot. I got several comments from the guides on how accurate my rifle was.

I'm curious to know how many confirmed kills everyone has on their. 300 Ham'r's. I'd like to put together a total all the way up to the end of 2021 and then take another count at the end of 2022. Do you guys want to do this here or in another thread?

Thanks Mr. Wilson for the thorough response: I suppose what I am taking away from what you say is that bullets may be a complicating factor to achieving accuracy in fast twist (over-stabilized) configurations.

Perhaps, the "traditional" twists are simply just suited to shoot a wider range of bullets and as the bullet designs go they end up being tailored to the traditional twist rates...

The series of pictures below are screen grabs from the video from the other calibers website - apples to apples it shows same velocity and bullet weight BUT quite a different impact result based upon the twist.

I suppose its trial and error to see which bullets may still shoot accurately with fast twist barrels - and so the journey continues...

couple new data points with my 8in barrel experience.

Now with 100 rounds on barrel i had the chance to try the 130gr and 135gr offerings from WC.

I am incredibly happy with 2100fps with 130 gr HHC. That meets or exceeds a max load for this weight bullet in a 16in 300 blackout per Hornady. It’s also 250-300fps than similar loads in my 8in 300BO.

Still need to try some lighter 110s and heavier 150s.

Thanks for the post. I just barely got my 8" set up and have only shot 30-40 rounds so far. I don't have a chrono so this helps a lot. I still haven't decided on what optic I'm going to put on it so I just have iron sights for now and got those sighted in the other day. I got a 2.5" group at 100 yards with the 110gr Controlled Chaos. I'm curious as to how that round chronos in the 8" bbl. The 130gr HHC was second best 5 shot group at 100 yards with a 3" group. I plan on this 8" to be more inside 100 yards only. I just wanted to see what i could do with it at 100 for the fun of it.

125 TNTs doing work. in the first vid, i wasn't sure how far the hog was, so i aimed high. scope is on 9x, so he was a ways out there. granted any bullet works when it hits spine, but i have no complaints.




it may not be the best bullet to punch through cotton stalks, but when you get a clear shot it can literally blow the top off.

Sorry for the delay, I hadn't been where my BC data was and then I forgot about this post for a few days too....

The new Lehigh 125gr CC BC is .242 and you can load it to 2440fps from a 18" with CFEBLK and a OAL of 2.250". They should be available on the WC site for sale by the first week of March. It's one DEADLY bullet!

Mr. Wilson,
Do you plan in the future to manufacture any more ballistic tip rounds? The Hornady SST or Barnes TX-TAC black tip in the 110 to 125 grain come to mind. Maybe because the most accurate HAM'R round for me is the BT V-Max 110 grain. I don't load my own rounds and my knowledge is limited but to me it only makes sense that a bullet shaped like a missile will have better accuracy. Thanks

I am big fan of the Barnes TAC-TX bullets, which are a game changer in performance for the 300BO. Some of the 300BO specialty bullets (supersonic) were specifically designed to span the very long throat/jump of 300BO chamber, which was designed to also chamber a 230gr bullet for subsonic ammo. The 110gr Barnes TC-TX is basically a wedge (straight sides with no ogee) to maximize the length of the bullet in order to reduce the amount of the jump from the chamber to the lands.

The 300HAM'R is able to generate +300fps over the 300BO by having a 1/4" longer case for holding additional powder. This longer case length means that there is less room in the magazine to fit long bullet profiles in a 300HAM'R cartridge. For this reason the most popular bullets for the 300HAM'R have a shorter/stubby profile that allows them to fit within AR15 magazine length restrictions (2.26").

Several guys in the thread, including Mr. Wilson, tested the Barnes TAC-TX in the 300HAM'R. As I recall what they discovered was in order to fit the Barnes bullet within magazine length they were forced to either grind off the polymer tip or pulling it off with pair of pliers. I was disappointed... Perhaps after the 300HAM'R goes mainstream then maybe Barnes will make a 110gr or 125gr TAC-TX bullet specifically designed for the 300HAM'R.

I personally think that once the 125gr CC Lehigh gets on the market it will be the bullet of choice. Load it, shoot it, and watch them fall.

No doubt about the fact that ALL the Lehigh bullets are awesome. The only problem is I can load a couple TNTs (bullet, primer, and powder) for the price of just the Lehigh bullet...and being the frugal guy I am guess which option I choose?

X2

Has anyone successfully used a Magpul D60 drum with the 300 Ham'r?

Does anyone know if the Speer 150 Flat Nose Soft Point (2011) cannelure is correct when using with 300 Hamr seating depths?

No it isn't

Has anyone had any issues with there 300 hamr barrels? I recently built a 300 using all Wilson parts. The rifle fired about ten rounds then cartridges will not chamber. To me it seems that the chamber is out of spec some how. I have a 223 cylinder hone should I hone the chamber or send the barrel back? Anyone else have this problem. This is my second 300 hamr. I bought my first one from the factory. It runs flawlessly. I’ve swapped parts between the two for testing purposes.

Clean the chamber and try it with the BCG from your other upper, if the problem isn't resolved send the upper back for us to ck out. Send attn Garin Hayner

If you modify the chamber it will void any warranty from WC

Ok. This rifle actually belongs to my 18 yo daughter. She kept poaching my rifle so I showed her how to order her own parts. She bought them all herself. It’s a good learning experience for her as she is learning some trouble shooting. Overall I’m very happy with the Wilson combat rifles. I also bought myself one of the AR10 ranger models.

Dude, i need to get some dad lessons from you!