obviously any gun you trust , for defensive use and any ammo you use,
must be very carefully and extensively tested for consistent function before serious use
glocks design intentionally favors reliable single use, function with new factory ammo,
and has little concern with handloads or brass re-use.
obviously your life might depend on totally reliable function, so test your equipment & ammo reliability
10MM Auto Brass - Large Pistol - Brass Cases
www.starlinebrass.com
ID strongly suggest you use an aftermarket 6"-6.6" aftermarket barrel for your glock as the brass case is much better supported in the
aftermarket barrels chamber, and the extra about 2" of added barrel length should add about 75-100 extra FPS in projectile velocity
and conventional rifling works far better with use of both both cast and jacketed bullets
10mm vs 357 - Handgun Cartridge Comparison by Ammo.com
When it comes to stopping power, 10mm vs 357 is too close to call. Both are exceptional self-defense rounds, but can a magnum revolver defeat a semi-auto handgun?
ammo.com
AlphaWolf Barrel For M/20L/40 10MM Threaded 9/16" x 24
AlphaWolf 10mm Glock 20L & Glock 40 threaded barrel for Gen 1-5. 9/16x24 threaded. Length: 6.61in
www.lonewolfdist.com
AlphaWolf Barrel For M/20L/40 10MM 6"
AlphaWolf 10mm Glock 20L barrel / Glock 40 barrel for Gen 1-5. Length: 6.02in
www.lonewolfdist.com
Speer Gold Dot Bullets 40 S&W, 10mm Auto (400 Diameter) 200 Grain
Speer Gold Dot bullets were designed to meet stringent law enforcement standards for dependability and performance. They features Uni-Cor technology...
www.midwayusa.com
in all handload data you'll see, a balance or compromise must be found between bullet weight
, jacket thickness, velocity and expected expansion and consistent .
repeatable accuracy at reasonable pressure
in the 10mm you find the aftermarket 6"-6.6" barrels provide much better chamber support ,
and usually provide increased accuracy
making swapping to them a good idea, if you want to gain max performance.
keep in mind the tighter chambers ,more precise rifling tighter throats that promote better accuracy,
and in some cases, barrels with steeper feed ramps on aftermarket barrels
can marginally reduce functional reliability , with some bullet designs,
so polishing feed ramps and proper lubrication and choices made,
in bullet profiles can effect reliable , repeatable feed an repeatable function
the 45 acp is a low pressure cartridge whose design is over 100 years old,
typical factory ammo is either a 230 grain at about 900 fps or a 180 grain bullet at about 1050 fps
Reloading The .45 ACP (Automatic Colt Pistol)
(WC= WadCutter, SWC= Semi-WadCutter,HP= Hollow Point, RN= Round Nose), SP=Soft Point(JHP= Jacketed Hollow Point and if GC indicated, means Gas Check at bottom of lead bullet)Loads for .45 ACP:
reloadammo.com
a much more modern option is the 10mm
its marginally smaller case/bullet diameter typically allows a few more cartridges in the magazine capacity
and you typically gain about 100-140 fps with the similar projectile weights
it operates in the 37.5 k pressure range
Reloading The 10 MM
(WC= WadCutter, SWC= Semi-WadCutter, HP= Hollow Point, RN= Round Nose, FMC=Full Metal Case, FMJ= Full Metal Jacket, JHP= Jacketed Hollow Point and if GCindicated, means Gas Check at bottom of le
reloadammo.com
All loads were loaded to a COL of 1.260" in once-fired Starline cases
All loads were bench tested at 25 yards with 5-shot hand held groups
The Hornady 180 gr. HP/XTP loads and the Hornady 200 gr. FMJ-FP loads produced the best accuracy, averaging around 2 1/2"
All loads using the Rainier bullets would not shoot accurately with any powder used, including Blue Dot, Longshot, and W231
None of the other loads provided good accuracy, averaging 3" to 4"
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