All of those numbers are within reason and for the most part can be obtained with an 18” Blackout. I would assume that those numbers could be pushed just a bit more with more case capacity. The Wilson cartridge will likely be able to do this easier, with less pressure, 1680 or CFE BLK vs 296.Mike7.62 wrote:Do you have data for this? Not saying that you're wrong, but they are claiming to get 2190-2250 f/s with 150 gr bullets in an 18" barrel. I'm getting around 1920 f/s with the 150 gr GD in my 300 BLK with a 16" barrel. Given about 50 f/s velocity loss for 2" of barrel, that still places the HAM'R 250+ f/s faster than the BLK with same weight bullet and clearly in .30-30 range.bangbangping wrote:Same barrel length, same pressure, with any super bullet? Nope. Not even close.Mike7.62 wrote:...it has around 250-300 f/s advantage over the 300 BLK in all bullet weights in the supersonic venue.
I guess the question is, do you find these statements true
Possibly with a short, light bullet which can't be loaded to mag length in the BLK. That's where the extra length and capacity will really help the Ham'r. But something like, say, the 150 Gold Dot? You'd be hard pressed to get 75 fps advantage. I think 50-60 would be more likely.
Here's the data from Wilson. Apologies for the length of the post.
300 HAM’R HANDLOADING DATA
Accurate/Western Powder Load Data for A1680
WILSON COMBAT LOAD DATA
Sierra 110gr HP-V #2110, 2.160” OAL
WC 300 HAM’R case
Start load: 25.5gr A1680 or 26.0gr H CFEBLK
Max load: 27.5gr A1680 or 28.0gr H CFEBLK
CCI450
Velocity range 2500 – 2600FPS
Lehigh 110gr CC #05-308-110-CUSP, 2.245” OAL
WC 300 HAM’R case
Start load: 25.5gr A1680 or 26.0gr H CFEBLK
Max load: 27.5gr A1680 or 28gr H CFEBLK
CCI450
Velocity range 2500 – 2600FPS
Sierra 125gr SBT PH #2120, 2.245” OAL
WC 300 HAM’R case
Start load: 25.0gr A1680 or 26.0gr H CFEBLK
Max load: 26.5gr A1680 or 27.8gr H CFEBLK
CCI450
Velocity range 2450 – 2500FPS
Speer 125gr TNT #1986/#3725, 2.245” OAL
WC 300 HAM’R case
Start load: 25.0gr A1680 or 26.0gr H CFEBLK
Max load: 26.0gr A1680 or 27.2gr H CFEBLK
CCI450
Velocity range 2450 – 2500FPS
Speer 130gr FPHC #2007, 2.175” OAL
WC 300 HAM’R case
Start load: 25.0gr A1680 or 26.0gr H CFEBLK
Max load: 26.5gr A1680 or 27.8gr H CFEBLK
CCI450
Velocity range 2450 – 2500FPS
Hornady 150gr SST #30303, 2.245” OAL
WC 300 HAM’R case
Start load: 23.8gr H CFEBLK
Max load: 24.8gr H CFEBLK
CCI450
Velocity range 2190 – 2250FPS
Speer 150gr FNHC #2011, 2.145” OAL
WC 300 HAM’R case
Start load: 23.6gr H CFEBLK
Max load: 24.8gr H CFEBLK
CCI450
Velocity range 2180 – 2240FPS
All loads were produced with WC 300 HAM’R cases, reduce the above charge weights by 5% if using cases made from .223/5.56 brass.
WARNING: Due to barrel bore dimension variations and powder lot differences WILSON COMBAT strongly recommends the use of a chronograph to work up loads in excess of the starting loads. Do not exceed the highest velocity listed for any load and do not substitute any other component for those listed.
Velocities were recorded using a Wilson Combat 18” barrel with Labradar in 90-100 degree temperature. Reduce or add 12FPS per inch for shorter or longer barrels.
NOTE: The 300 HAM’R is designed to use 110-150gr bullets at supersonic velocity and is NOT suitable for heavy bullet sub-sonic use.
WARNING: The above loading data has proven safe in Wilson Combat firearms when used properly, but because Wilson’s Gun Shop, Inc., dba Wilson Combat has no control over the components used or individual handloading practices we assume no liability (either expressed or implied) for the use of this load data information.
NUMEROUS BULLETS ARE SUITABLE FOR THE 300 HAM’R AND COVER A WIDE VARIETY OF APPLICATIONS
Bullet Choices Suitable for the 300 HAM’R
110gr Sierra HP Varminter #2110 (extremely accurate)
110gr Hornady V-MAX #23010
110gr Barnes TSX #30835
110gr Lehigh CC #05-308-110-CUSP (our partners at Lehigh Defense designed this bullet specifically for the 300 HAM’R to provide extreme accuracy and deadly terminal performance)
125gr Sierra SBT PH #2120 (the all around choice, achieves maximum velocity, accurate and deadly)
125gr Sierra FNHP #2020
125gr Speer TNT #1986
130gr Speer FNHC #2007 (OPTIMUM hunting bullet for terminal performance)
130gr Speer HP #2005 (inexpensive and super accurate)
135gr Sierra HP Varminter #2124 (extremely accurate, great choice for predator hunting)
135gr Sierra HPBT MK #2123
150gr Hornady SST #30303 (for the largest game the cartridge is suitable for)
150gr Hornady RN IL #3035
150gr Sierra FN PH #2000 (for the largest game the cartridge is suitable for)
150gr Sierra RN PH #2135
150gr Speer FNHC #2011 (for the largest game the cartridge is suitable for)
160gr Hornady FTX #30395
WILSON COMBAT SUPPORTS THE HANDLOADER
The following are available from shopwilsoncombat.com
Lee Reloading Dies
RCBS Reloading Dies
Wilson Combat headspace/bullet seating gage
WC 300 HAM’R Headstamped Cases
Bullets
Accurate/Western Powder Load Data for A1680
The heavier or longer the bullet, the less gain you will have. A good example would be that they are not using the Barnes 110 because it is too long for the case. The bullet selection will be somewhat limited.
Consider that the COL for both cartridges is the same. You will lose more case capacity with the Wilson the longer the bullet is. The volume gain will be between the bullet below the neck and the case wall. So a short flatbase bullet might gain 4 grains of powder, where long boat tail like a 150 SST it could be less than 2 grains. These are guesses for example only, but looking at the load data, they will be close.
Sub sonic is probably off the table, or very limited.
For what it’s worth, a 110 VMax can be pushed to 2800 fps in an 18” Blackout and the 150 Gold dot was at 2180 fps in a 12”, keeping the COL at 2.260”. So I have no doubt those numbers are valid.