135gr .295
150gr .417

Bill,

Do you have an ETA when we can purchase the new 135's for reloading?

Thanks

Hopefully we'll have some packaged and on the web site by Monday. They will be packaged in 50ct for $14.95 #B300HMR-135-HB

You can load them to 2425fps from a 16" or 2450fps from a 18" using CFEBLK and a LabRadar, if your using a conventional chrono your velocity needs to be about 20fps less. COL is 2.250" - 2.255"

Could a fellow place an order & have it added to another order that is on hold till some 300 Ham'r brass arrives?

Thank you. Have you shot any hogs with the 150gr btsp?

Bill,

Do you have an ETA for Loaded Ammunition for the 135? Will Nickel cases be an option?

Great, thanks!

I will be using this for Virginia whitetails and maybe a few smaller hogs. My thought was that the 135 with the higher bc even though it was slightly slower that’s the 130 looks to be as good or better drop numbers and energy out to 200-250 and obviously from your cadaver expansion photos it looks to have good weight retention.

Thoughts?

It seems, on paper, that it’s the better option at longer range vs the 130gr hotcore. The 150gr sst looks good at range as well as the 150gr bonded round.. those higher bc bullets make the hamr a legit 200yd+ hunting round. Seems like Bill in an earlier post took a couple whitetails around 250yds

Best round to buy for the 300 hamr pistol for SD?

Anyone got an idea of the velocity of the 150gr SST from the 14.7” barrel? Already got some 130gr Ham’r in just want try a couple different bullets.

Bill has shared a ton of information with us on this forum thread...be sure to look back through the previous posts by "Wilson Combat" to hear it straight from the horses mouth. I'll share some of the stuff I've collected while reading through here:

From the testing Bill has done it appears that shorter barrels lose the least amount of velocity with the heavier bullets. You always expect to lose some velocity with barrel length, but the 150 gr bullets retain more than the lighter bullets. Here are a few previous statements:



And here is a spreadsheet of a velocity test Bill did recently:



Based on these tests, Bill recommends that you stick with barrel lengths of 11.3 in and greater.

Here is a separate post by Bill on his top ammo choices for specific purposes:



The Speer 135gr HAM'R BONDED is hotly anticipated in the Wilson Combat store by many on the forum

Finally, my two cents. I've been super interested in finding the perfect self defense round for the 11.3 in barrel configuration. To be honest, I think we are still in the experimentation phase. Based on Bill's testing I've been looking more at the heavier bullets, but I wonder how much is sacrificed when velocities start approaching 2000fps. Some of the research I've seen shows that hydrostatic shock, in bore sizes from .243” up to .338”, begins to lesson at impact velocities below 2600fps. This depends a lot on bullet construction, because the way the bullet deforms (or fractures) and dumps its energy is important.

Currently I own both a 11.3 inch pistol and a 16 inch rifle chambered in 300 HAM'R. The rifle is for hunting hogs and other game. The pistol rides with me in my vehicle and next to me at my office. I carry the pistol in a Vertx Gamut Checkpoint Backpack. I had to install a Sylvan AR folding brace adapter to get it into a nice short carrying package which fits comfortably in the backpack. I've been recommending this setup to my friends and clients. In my opinion, its the best balance of extremely high ballistic performance with the portability and convenience that will allow you to have it at arms length always.

Hope this helps!

My concern about heavier bullets in short barrels is how much down range retained velocity you have at reasonable distances, say out to 150yds. I also have the same concern going shorter than 11.3". Most bullets are designed for reliable expansion down to 1900fps, if you only start out with 2000-2100fps MV for example this doesn't give you much range. But on the flip side, the lighter bullets shed velocity much faster than the heavier ones assuming a similar profile.

For this reason I keep my 11.3" pistol loaded with the 130gr HAM'R HOT-COR rather than 150gr choices.

This probably calls for some serious ballistic comparison on a program like Hornady's Ballistic Calculator......

Here are two comparisons from my 16” barrel and 11.3” barrel, both 130 flat nose HotCor. I haven’t killed anything but a piglet at 74y with the lil Hamr, it laid where I shot it. At night a LONG shot is 100y, I prefer to be much closer.

Mr. Wilson - Based upon these numbers and your 1900fps comment, seems like I should be limiting my shots to 100y with the lil Hamr and 150y with the big.

Nice summarization Thorn

Judd,

When I use a G1 bc of .248 for that bullet I get different numbers than you have here by a noticeable amount. What calculator were you using?

This is all a question of the bullet’s BC.

If you have a 100gr bullet with a G1 bc of .250 and a 200gr bullet with a bc of .250, they will have exactly the same drop numbers if started at the same velocity. So it really comes down more to bullet shape (which translates to BC) rather than weight.

The reason that the heavier bullets generally have a better BC all other things being equal is that the heavier weight for the same bore size equates to a longer bullet, which is more aerodynamic, which gives it a higher BC.

So in the case of a 11.3 vs 16 - if you had a 110 gr bullet and a 150 gr bullet with the exact same bc, and were able to start the 110gr out of the 11.3 at the exact same velocity as the 150gr out of the 16 then they would have exactly the same drop figures and the exact same velocity decay. BUT, they would have dramatically different energy levels.

As Bill said, the bullet design will dictate the range. I have found that most smaller .308 bullets have an minimum expansion threshold of 1800-1900 fps. Another personal preference, although not scientific, is to use 1000 ft-lbs as a reasonable estimate for effective range. The Speer 150 Gold Dots BC seems widely exaggerated so I am using .42 G1 instead of .503 in the calculation below. Also using Bill's 150 Fusion values for MV. Out of my 8-inch pistol, I would expect the 150 grain Gold Dot to perform out to 75 yards as a defensive round with excellent barrier penetration. No issue using the 150 grain in the 8-inch as long as you know the limitations. The 135 HAM'R Bonded seems to have great potential as the best all around HAM'R round. Hope Bill loads this in Nickel Cases soon. Ballistics on that as well below assuming 8-inch performance same as 135 FTX. Bill's test pics of the 135 still show good expansion at 1900 fps impact velocity making my gut think there would still be decent expansion at 1800 fps, pushing the 8-inch range to 130 yards! Lastly, the most amazing about 300 this data is the energy from an 8-inch barrel at 100 yards for the 135 is about the same as the best heavy 77 gr 5.56 loads from the muzzle!!

Also, in considering a bullet choice for defensive purposes, many variables need to be taken into account. Like - do you live in an urban area with close neighbors so your longest shot may be 30-40 yds or do you live in Wyoming where a threat may be 200+ yards away.

Also, from a legal standpoint, how far becomes too far for you to be “defending” yourself vs you should have just gotten away from the threat?

Then you get into, do you live in Florida where a threat may be wearing a t shirt vs Alaska where they may be wearing 27 layers of clothing?

And there are MANY other considerations to make, but the bottom line usually becomes that there are certainly some wrong bullets to use, but there probably isn’t just one perfect bullet for the situation. Normally there is a range of bullets that will be effective for that usage whether it be hunting or defense. This is illustrated very well by the variety of bullets that Bill has used with the 300 ham’r on his hog hunts. There are some bullets that work better that’s others for that particular usage, but there are also several that probably work just as good as one another and you may not be able to tell a difference as to the terminal effect.

One last thing, and I’ll hush. :-) The other consideration is that the threats that shoot back at you generally are very lightly constructed vs some of the game that are taken in hunting.

This is pretty much my favorite car/truck pistol. 300 HAM'R 8-inch, Aero Upper/lower. Geissele: trigger, high reliability BCG. VSeven: lithium aluminum hand guard, TI gas block, Inconel pistol gas tube, buffer tube, TI end plate, TI castle nut, TI mag release, TI selector, TI takedown pins, aluminum port door, lightweight forward assist. BCM Charging handle and grip. 2A Armament TI brake. Magpul 300 blackout PMAG. Trijicon RMR. Right at 5lbs with optic. Waiting for Magpul brace to shed a few more ounces.

Looks great!

Can you please share what velocities you are getting with any loads you have fired from it?

Thanks

Thanks!

I would if I had a chronograph. Unfortunately, I don't reload so I am Bill's mercy for ammunition and test data.

:-(

Have you tried the 95gr and 110gr lehigh in this?

Using Shooter App. the bc in their library is G1 .213. I’ve not validated that number or the dope because I assembled these to be 100-125y max guns.

Thank you everyone for the very informative information. I just bought the WC 300 HAM’R pistol so the 11.3in barrel performance is my interest.
The primary use case is for home protection on a 2 to 5 acre property. Still looking for that perfect home ...
I moved from commie cali to Washington state so while there is no castle doctrine, WA does have stand your ground and no requirement to retreat. As such, I do not expect the need for this firearm to be past 100 yards. It is very clear on WCs website on best rounds for hunting, but I was confused for SD. I look forward to the additional testing and recommendations from everyone here.

Bill,

Will you be making the 95gr lehigh available for sale as bullet only for loading?