Frank before we move onto another subject at the bottom of the ballistics printout you shared with the low SD's and ES's would you also please post a copy of the 100yd. group size shown on the printout? 

JLouis

Gentleman I hope you can clearly see these two printouts to review. The speed and BC's were high 0.413 and 0.402 and the SD's and ES's low. Avg Velocitys 1500fps and 1516fps. SD 5 and 5, ES 19 and 16, groups size 100yds. 1.2 and .900. Wind Drift 100yds. 10MPH Wind 1.78 and 1.81 inches. These two 10 shot ballistic printouts were shot approx 28 minutes apart. Bullet 200gr. PJones Spitzer, Rifle CPA 32-40. A very simple and useful example of high BC's and Speed not being the Holy Grail as some would tend to believe based on the groups and calculated 100yd. Wind Drift. Unfortunatly it is not that simple as you can see, there is allot more too it in regards to obtaining the best accuracy possible for your individual rifles.

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I might add when you review the overall length as noted on the printout it is in regards to the breach seating depth with the cartridge length taken into consideration and not fixed ammunition. I usually measure from the face of the rim not the back of the rim but I am not sure which is the case on the printout without getting into the safe and dragging out my seater. Also pay close attention to wind speed as noted, temp, altitude, humidity etc. it is all relevent.

JLouis

John,
As requested.

Now let me give a little back ground to my testing. It was not done for accuracy, it's soul purpose was to test the bullets BC and I thank Barry Darr, very, very much for doing this for me.

I did not consider conditions, at all. I just put the +hairs on the target and pulled the trigger and did it as fast as I could, because I had 5 bullets to test and others where slated to test that day, also.

As you can see, the 10 shot group is .6, plenty good for a 250 @ 100. Had I taken my time and watched for conditions, it could have been a smaller group.

I was hoping that John would show some of his flat nose tests, so that we could see what he's talking about, regarding consistency in BC and wind drift

A question I have about his PJ bullet test. I'm wondering why he wasn't using the normal loads that he recommend of 300MP. I believe he always recommends either 14.4 or 13.7 gr.

It varies widely, Bob.

The 32 Hudson bullet is about .24, the old 165 - 185gr FN bullets run in the .25 - .29. Match type bullets start around .3 and go to .44 (233+ PJ spitz) What I'll call 200 gr, simi-spitzers run .32 - .36 and spitzers from there up. Most of mine run .38 - .40.

Like I keep saying, if you can get around the prevaling conditions some how and/or shoot short distance, any bullet can be accurate. I started out with RL spitzers and never found anything to be better than spitzers. What success I've had, I give much of the credit to using them.

Frank

Joe,
1.0 is the best .000 is the worst.

Once we discovered this, we quit shooting round balls. Although I still like round balls, that's where I started.

Frank

Schuetzenmiester wrote on Mar 4^th, 2016 at 11:11pm:


I think the older style heavy .45 cal bullets generally run in the mid 0.4's. , the Money bullets vary from around 0.5 to a little better than that, depending on a few things like grease groove dimensions ( or if it's grooveless ).

  My 40 cal Money bullet is pretty much bang on out to 600 yards with a BC of .475.  For comparison the Saeco 400gr bullet is a little over 0.4.  I find them more accurate at 200 but the Money is better after that.

Chris.