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Author Topic: Idea I had that is helping me look at my load data  (Read 3540 times)

Offline Rob

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Re: Idea I had that is helping me look at my load data
« Reply #15 on: September 15, 2009, 02:40:40 PM »
Well, my groups on larger caliber guns are more like 1.5 to 2.5 inches so clearly I have an issue with recoil.  If I don't concentrate I have a pretty bad flinch.  Working on improving that.

I reload for three reasons.  Cost, accuracy and pleasure.  (no particular order).   I expect better results from reloading than factory rounds.  I also find it fun to sit down at the bench and reload for a few hours.  Certainly the cost is offset by the time it takes to re-load so if I did not have fun I would just buy ammo.  I'm new to reloading so I do not expect to be a pro after only a few months of loading.

I only have 8 data sets for factory ammo.  The Remington Actutip’s do perform well, but I think overall my re-loads are doing as good or nearly as good.  That ¼ inch group was pretty cool though!  They were definitely better than the Hornady factory rounds.  The first table has my data for the factory loads.

I am now tracking brass type and primer in my data.

I know this gun will shoot 1/4 inch groups or better at 100 yards if I work on it.  The factory 3 shot bench target they sent with the gun was a single hole group probably .22 caliber in size...

I did hit the range on Saturday and I shot 16 5 shot groups.

four groups for each of the following config:
-Barnes Var Gren RL 10x at 2.240 OAL
-Barnes Var Gren RL 10x at 2.300 OAL
-Vmax H4895 at 2.240 OAL
-Vmax H4895 at 2.300 OAL

I got Velocity info on half of the sets.  I had issues with my chrony half way through the day and it took several sets to correct it. For those sets I was able to get Velocity info on, within each set, the readings were within 1.5% of each other in all but one of the sets (one was 2.25%).  (FYI I calculated this by taking the max reading minus the min reading as a percentage of the average reading-not sure if that is how others figure it out or not).  I interpret this to mean my loads are pretty consistent.

Largest group was 0.875, smallest was 0.375, average across all groups was 0.6.

A table is listed below.  My conclusions are:
-The 32 grain V Max seems to outperform the Barnes with only 2 of the 8 Barnes groups coming in under a half inch vs 4 of the V-max.  I think once I shoot up the bullets I have, I am done with Barnes for the 204.
-The worst performing round was the Barnes V grenade in 2.300 OAL
-The best OAL was the V Max in the 2.240.  (2.240 was better for Barnes too)

So next steps:
I have 80 more shells to shoot in the V-max.  40 in the N140 and 40 in W 748 (both powders have 20 in each of the two OAL's).

My prediction is that the W 748 with an OAL of 2.240 shooting 32 grain V max's will be the shell I choose.

Then I'll load a bunch of those up and head of to Wyoming for a little bit of varmint hunting.  When I get back I’ll start seeing how they shoot out at 300 yards.  (will try to play with that before I go to Wy time allowing)
_______________________________________
Sit tall in the saddle, hold you head up high.
Keep your eyes fixed on where the trail meets the sky.
Live like you ain’t afraid to die.
Just sit back and enjoy your ride
  - Chris Ledoux

 


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