SMP-842

[mikegideon]

I'm going to leave my results up for now, but after talking with Dolomite over the phone, we've pretty much come to the conclusion my Chronograph is so basically the work I have done thus far was a waste of time. It's just not possible to get the accuracy I am getting with the velocity variances my Chrony is showing.

You can't put 120 rounds inside a 2 inch circle if you're getting as much as 300fps difference.

Which chronograph are you using?

[Caster]

Base model Chrony.

[mikegideon]

Base model Chrony.

Brand? I have a Competition Electronics. That's why I'm asking. Mine has lied to me with .458 SOCOM. I haven't tried it since I put the brake on. Could have just been a buttload of muzzle blast.

[Caster]

Brand? I have a Competition Electronics. That's why I'm asking. Mine has lied to me with .458 SOCOM. I haven't tried it since I put the brake on. Could have just been a buttload of muzzle blast.

Chrony is the brand. Errr, Shooting Chrony rather.

http://www.midwayusa.com/product/531741/shooting-chrony-f1-chronograph

[mikegideon]

Chrony is the brand. Errr, Shooting Chrony rather.

http://www.midwayusa...-f1-chronograph

Ah. You're welcome to borrow mine.

[Caster]

Ah. You're welcome to borrow mine.

But I don't wanna buy you a new one. If my past record is any clue, I'd be buying you a new one

It's a wonder this one is still in one piece.

[mikegideon]

But I don't wanna buy you a new one. If my past record is any clue, I'd be buying you a new one

It's a wonder this one is still in one piece.

Sounds like it may need to be shot.

[dlm37015]

caster i have several that i dont use i can fix you up i think i still have an oehler 35

[Caster]

caster i have several that i dont use i can fix you up i think i still have an oehler 35

You should have played Major League Baseball as many home runs as you hit.

[dlm37015]

i will be home later today give me a call also remind me to give you the stock and holster for your c96

[jcoosi]

Well I drank the kool aid and ordered some today also

[Dolomite_supafly]

Well I drank the kool aid and ordered some today also

SMP 842 or CFE 223?

And did you get it from David?

Dolomite

[Caster]

Well I drank the kool aid and ordered some today also

SMP 842 or CFE 223?

And did you get it from David?

Dolomite

Right. Good bit of difference.

You have a chronograph? Love to have your results with the SMP842

[mikegideon]

I may try some of these with it...

http://www.midwayusa.com/product/292014/barnes-tipped-triple-shock-x-bullets-22-caliber-224-diameter-62-grain-spitzer-boat-tail-box-of-50

[Caster]

I may try some of these with it...

http://www.midwayusa...-tail-box-of-50

If you do, let me know what the over all length of that bullet is please. I wonder what it isn't close to the 62g steel core I shoot a lot of. It'll certainly be longer than any regular lead core 62g.

I've tried their 70g triple shock and grouped 5 rounds in about .600 @ 100yards They're pricey so I only bought 100. I shot half and tucked the others away. If I were to take up deer hunting with a .223 it would be the one to do it with.

Edited June 25, 2012 by Caster

[mikegideon]

If you do, let me know what the over all length of that bullet is please. I wonder what it isn't close to the 62g steel core I shoot a lot of. It'll certainly be longer than any regular lead core 62g.

I've tried their 70g triple shock and grouped 5 rounds in about .600 @ 100yards They're pricey so I only bought 100. I shot half and tucked the others away. If I were to take up deer hunting with a .223 it would be the one to do it with.

I load them in .458, and they're quite a bit longer than lead. That's why I figured they would be a good match for the new powder.

[Caster]

I load them in .458, and they're quite a bit longer than lead. That's why I figured they would be a good match for the new powder.

I think s too. I have had better results from the longer 73g Amax than from any of the small bullets I've tried. Even with my screwy Chronograph I could tell a difference.

[mikegideon]

I just figure if this powder was developed for "green" ammo, one of the main reasons would be to deal with reduced case capacity. Barnes solids are probably gonna make one helluva round.

[jcoosi]

SMP 842 or CFE 223?

And did you get it from David?

Dolomite

I asked him for some 842 powder.Told him I seen it on this thread.

[Caster]

I asked him for some 842 powder.Told him I seen it on this thread.

Okay, good deal. SMP 842.

Start low and work up slow. By the time you actually see pressure signs, you may already be past max pressure so watch yourself. ....and share your results.

[Dolomite_supafly]

What are you loading jcoosi?

Dolomite

[jcoosi]

ss109 62gr

[Caster]

ss109 62gr

Oh those do so very well with that powder. What rifle, barrel length and twist?

I ran 24g and was VERY happy with it. Dolomite ran a touch more and was equally pleased. I would tell you to start low and work up. 22g or so would be a fairly safe place to start. I wouldn't go much past 25-26g. Dolomite is in the 25.? grains and we both agree that it's close to the upper tier. Much more would be a bad idea.

BTW, the powder does it's job. I use Montana Extreme 50BMG solvent and it is POTENT. I can usually get a couple of blue patches after only hundred rounds but I run a dry patch through the bore with a tight jag and got the powder fouling out and then soaked the bore in solvent for 15 minutes. NO blue on the patches. The first one had some more powder residue but no copper. The rest came out a little off white. Woot!

[Dolomite_supafly]

For 62 grain bullets using SMP 842 these are the numbers I got out of a 16" 9 twist barreled AR.

25.7=~3,045

25.8=~3,070

25.9=~3,095

This is in my gun. I assume no responsibility in the data I just posted in your firearm.

Dolomite

[jcoosi]

daniel defense 16" upper I will have to check the twist