Too bad the 10mm factory loads are underpowered and almost 40 loads. Handgun loads aren't like rifle loads. Rifle loads can be dangerous if the throat/chamber is short and cause over pressure. I can OP the living snot out of 10mil loads that near 45k or more. I've done the same with 357sig loads also. If you have a very heavy recoil spring it makes it easier to handle OP ammo. I need to chrono some for relevance.
Part guesstimate and part of QL tuning. Going off published load data and the 121% fill of blue dot and averaged of gained velocity and pressure needed puts me close. With 357sig max @ 40k (still unsure) as ql goes to 44k? With the brake/comp on it barely spit out the brass......with it off the slide was WAY fast. Surprised it chambered the next round. I need to check case volume (empty) and do more testing.My M610 can definitely handle nuclear loads, no with aplomb. These loads I keep away from my semi-autos! How do you know you're running near 45kpsi small town life?
Too bad the 10mm factory loads are underpowered and almost 40 loads. Handgun loads aren't like rifle loads. Rifle loads can be dangerous if the throat/chamber is short and cause over pressure. I can OP the living snot out of 10mil loads that near 45k or more. I've done the same with 357sig loads also. If you have a very heavy recoil spring it makes it easier to handle OP ammo. I need to chrono some for relevance.
The only testing I've done was on steel. With 10mil hot loads they stayed together.....well until it hit the plates. Same thing with hot loads from the sig with way more velocity than +p+ 9.A major reason this is because most factory 10mm ammunition is loaded with JHP bullets designed for 40 S&W velocities instead of 10mm caliber capable velocities. An exception to this are the all copper JHPs, like the ones offered by Barnes. Double Tap's 125gr TAC-XPB at ~1600fps is reported to be an excellent performer, I like them.
Here are examples of 180gr XTP and 180gr Gold Dots loaded in the ~1300fps range;
View attachment 1175299
Losing 3 petals and the GD would obviously tumble.
View attachment 1175300
180gr Gold Dot backed off to 1267fps impact velocity routinely yielded symmetrical expansion and retained weight;
View attachment 1175301
180gr XTP @1260fps impact velocity, 4 layer denim;
View attachment 1175302
Mid-1200fps impact velocities are decent goals for handloading 180gr Nosler, Golden Saber, XTP and Gold Dot JHPs.
the 121% fill of blue dot and
I'm finding 200gr hollow points to be built for 10mm velocities. I like that and I like that given the weight of the projectile that it will leave an exit wound. This is good for use in rural areas or combat as it makes things that bleed, bleed faster.A major reason this is because most factory 10mm ammunition is loaded with JHP bullets designed for 40 S&W velocities instead of 10mm caliber capable velocities. An exception to this are the all copper JHPs, like the ones offered by Barnes. Double Tap's 125gr TAC-XPB at ~1600fps is reported to be an excellent performer, I like them.
Here are examples of 180gr XTP and 180gr Gold Dots loaded in the ~1300fps range;
View attachment 1175299
Losing 3 petals and the GD would obviously tumble.
View attachment 1175300
180gr Gold Dot backed off to 1267fps impact velocity routinely yielded symmetrical expansion and retained weight;
View attachment 1175301
180gr XTP @1260fps impact velocity, 4 layer denim;
View attachment 1175302
Mid-1200fps impact velocities are decent goals for handloading 180gr Nosler, Golden Saber, XTP and Gold Dot JHPs.
I don’t know that there are that many guns that will handle a load heavier than 180 at ~ 1000fpsMV are there? Buddy of mine has a G20 and we’ve never been able to get his pistol to operate reliably and consistently when trying to push anything in the 180-200gr up to 1100 fps. Maybe it’s a Glock thing, IDK. Bulged cases, flattened primers, mis-feeds are all par for the course when trying to get a 10mm up to 1000fps + with 200 grain loads.I'm finding 200gr hollow points to be built for 10mm velocities. I like that and I like that given the weight of the projectile that it will leave an exit wound. This is good for use in rural areas or combat as it makes things that bleed, bleed faster.
165gr and 180gr 10mm would be better for conceal carry with a short barrel, but I've never thought of 10mm as being a good choice for that role. Give me 9 or .45 instead.
My shooting buddies G20 is not a gen5. Maybe that’s the issue with his not reliably functioning with heavier bullets. Could just be a reloading issue as well.The Underwood loads that I have been using in my Glock 20 gen5 & XDM 3.8 are rated at 1250 for both the 200 & 180 grain.
That is one of the advantages that I feel with Underwood Range Supply target ammo. The 180 FMJs are rated at the same velocity as their 180 JHPs 1250.
I do know that they changed the type of barrel they use in the gen5.My shooting buddies G20 is not a gen5. Maybe that’s the issue with his not reliably functioning with heavier bullets. Could just be a reloading issue as well.
He’s burning Unique and 231, but I don’t know the loads.
Using 8.8gr of Blue Dot I get 1125 w/ 200gr Berry's in my Glock 40. I believe I've done 9gr and gotten around 1160, but I don't have that in my notes, just my cortex.I don’t know that there are that many guns that will handle a load heavier than 180 at ~ 1000fpsMV are there? Buddy of mine has a G20 and we’ve never been able to get his pistol to operate reliably and consistently when trying to push anything in the 180-200gr up to 1100 fps. Maybe it’s a Glock thing, IDK. Bulged cases, flattened primers, mis-feeds are all par for the course when trying to get a 10mm up to 1000fps + with 200 grain loads.
And if you can’t push a 180gr 10mm at ~1100+fps, I can’t see the utility of a 10mm as a dangerous critter protection tool. YMMV.