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<Big Stick> |
I shoot a moly 40gr V-Max with 31.5grs of H-335,out of my 223Ackley's. CCI primers,R/P cases,1.750" trim length,.005" land engagement. 4000fps,will be broken with both my 23" and 24" barrels. A friend's 22" barrel,will go 25fps slower. All tubes are 1-12" twist,most are PacNor S/S SuperMatch,the other a Factory Remington S/S BDL barrel I had punched out. 30.5grs of H-335 and a moly 50gr V-Max will go 3750fps,in the 23's and 24" tubes. The 22" goes about 40fps slower. Brass life is exceptional,accuracy phenomenal,speeds speak for themselves. As per usual,start 10% below and work in accordance,with your particular rifle's characteristics........ | ||
<Big Stick> |
This thread gives me another reason,to toss another photo. This is my favorite 223Ackley........
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one of us |
These loads are from Vamint Hunter Magazine #21 in an article written by Steve Timm...all at or near max for HIS Rifle. His fire-forming load using a 40gr Nosler BT was 28.0 grains of H-335...he didn't list a primer but the other loads below used the Winchester Small Rifle primer...THIS WAS HIS FIRE-FORMING LOAD. His loads using fire-formed .223AI brass used Winchester Small Rifle primers... #1) 40gr Nosler BT.....30.3gr of H-335 #2 50gr Nosler BT.....28.5gr of H-335 #3) 55gr Nosler BT.....28.0gr of H-335 Now these are the loads listed in the magazine cited above...CONSIDER THEM AS A MAXIMUM LOAD IN HIS RIFLE AND REDUCE YOUR STARTING LOADS ACCORDINGLY....AT LEAST 10%. I don't assume any responsibility for these loads, as reported by Steve Timm, just providing them to you for your consideration. | |||
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<Big Stick> |
In the text of that article,he mentions increased loads. This article is where I gleaned starting loads,for my barrels. Should be mentioned that Steve was shooting his bullets sans moly(I love and believe in the stuff). Pg.12,of the same Issue: "The 40gr Ballistic Tip shot very well in the rifle. The best load with the forty-grain Nosler BT is 30.3grs H-335. This combination gave an average instrumental velocity of 3900fps and shot four five-shot groups that averaged .42". Chamber pressures appeared to be mild,so this load should be a fine one for shooting prairie dogs in all temperatures. At 31.0grs of H-335,still using the 40gr BT,there was a very slight hesitation in bolt lift. Extraction was not sticky and I could discern no case head expansion. I know from experience,however,that these problems could occur if the load was used in hot weather. The average muzzle velocity generated by this combination was a speedy 3960fps and it shot a .45" aggregate. the basic value of this load is that it clearly defines the upper bounds". In regards to 50's: All his data,was through a 22" long,1-12" twist PacNor S/S SuperMatch blank. The point being,the data I offered is of known safety in my barrels,when employing moly. You need to start lower and work up,in accordance to your individual barrel/s. It takes more propellant with a moly projectile,to make like pressure. I'm sure you know all of that,but felt compelled to clarify. Bottom line is,that it is one hell of a great cartridge........... | ||
<.> |
Thank you. This is what I had in mind. I'll find my copy of Varmint Hunter. | ||
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