Hey Mcnett! More power!

[brass shower]

With the introduction of the heavy G21L and G20L longslides have you considered a line of 10mm super/magnum/uberblaster ammunition? Something that would carry the explicit warning that it's only to be fired in a longslide with a 24 lb recoil springs or something sturdier like a TC and geared to take advantage of the longer barrels and increased slide mass?

[ColoradoGlocker]

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[brass shower]

Originally posted by ColoradoGlocker
I loaded up some 165grn HPs in front of 9.5grns of Power Pistol lit off by CCI 350 magnum primers in new Winchester cases with an OAL of 1.260" and got 1,503fps on an 84 deg. day at 6,000ft el. That's 827 ft lbs of muzzle energy! How much more do you need?

I'm thinking that kind of velocity with a 180 grain bullet would be a good starting goal! ;f

[Vulcanese]

Originally posted by brass shower
I'm thinking that kind of velocity with a 180 grain bullet would be a good starting goal! ;f

You can get that kind of velocity out of a 180gr. with a 6" barrel and IMR's 800X.

[ronterry]

I scored 1500FPS with just 11gr of 800X and a 155gr GDHP (G20/KKM5").
I was consistantly getting 1490's to low 1500's before I shoot my chrony over at Cherry Creek. I'll have to get a new one, and see what I get, A new one that only has the sensors in the line of fire :)
My reading seem awfully high with 800X, but BD and the rest where spot on with the book.
You can also get some magnum power out of 2400, BD, and AA#9!!!
In fact I was getting wicked numbers with AA#9, with the same hudge *** recoil of 800X. I mean you just have to ignore the super flat primmers. ;P
BTW: I love PP in my .45ACP. My G.I. (NO BEAVER TAIL) tore my hand UP, after only a 100 rounds!

[brass shower]

Wow 3 10mm fans in CO? Awesome! We oughta start a club!

[JWP]

agree on aa#9

my 180s go 1350ish out of witness compact with 3.5" bbl

[noway]

{I scored 1500FPS with just 11gr of 800X and a 155gr GDHP (G20/KKM5").}

If you are getting that high with only 11gr, I wonder what 13gr of 800x pushing a 155gr XTP does? This is my std loading for my 10mm work using a 155gr bullet.

[Its The Truth]

IS the 20L bbl atleast 7"? He may already have something that will do 180gr @1500.

[Mossyrock]

Originally posted by Its The Truth
IS the 20L bbl atleast 7"? He may already have something that will do 180gr @1500.

The 20L barrel is 6".

[Its The Truth]

Dam, that would be awesome with a 7". DT has a 200gr @ 1300 out of a stock G20 bbl. If you dropped the weight to 180gr, and used a 6" bbl you should get up to about 1475. Thats my guess anyway.

[rickyj]

Originally posted by brass shower
Wow 3 10mm fans in CO? Awesome! We oughta start a club!

Make that 4 :cool:

[ColoradoGlocker]

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[turbonatr]

Originally posted by brass shower
Something that would carry the explicit warning that it's only to be fired in a longslide with a 24 lb recoil springs or something sturdier like a TC and geared to take advantage of the longer barrels and increased slide mass?

Sounds like a nightmare in the making. It would be a matter of time before this load would be fired in something it's not designed to be fired in and the lawsuits start flying. Besides, if it's beyond SAAMI specifications, it's a bomb regardless of what gun it's fired in. The 10mm isn't a cartridge like the 45 Colt where there are two SAAMI recognized standards, standard pressure and "Ruger Only" loads. The 10mm has a SAAMI max. of 37,500psi, period. Sure, Mike can probably squeeze a few more FPS out of his current loads, but he didn't do that because accuracy suffered and he didn't feel the added velocity was more important than match accuracy. I tend to agree.

I think it's smarter, and safer, to find a 6.5" S&W 610 to get those few more FPS from his loads rather than add more powder. DT 10mm ammo screams out of my 6.5" 610, and I rest easy knowing the ammo is within SAAMI standards.

[Vulcanese]

Originally posted by turbonatr
...The 10mm has a SAAMI max. of 32,500psi, period...

SAAMI max for 10mm is 37,500psi.

[turbonatr]

You are correct. Typo on my part. Thread edited.

Thank you.