2 Bullets, 3 Powders, lots of shooting

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2 Bullets, 3 Powders, lots of shooting

Postby Ohio3Wheels » 09 Jan 2019 14

A couple of months ago I started an experiment in hopes of gaining to insight into bullets with convention lube and coated. Missouri Bullets offers sample packs of their various bullets so I got 100 conventionally lubed and 100 coated Elmer Keith style 45 bullets. These are 255 grain SWC Lyman mold number 452424. Powders selected were Tight Group, True Blue and HS-6 (had on hand), Winchester LPP, and Star Line cases. Rifle is my Rossi '92, 20" octagon. Velocities were taken with a MagnetoSpeed sporter with start sensor about an inch and a half from the muzzle. Shot indoors on two separate days 72 degrees F and no wind. Loads taken from latest edition of the Lyman Cast Bullet handbook.

abbreviated data or this will get long
Tight Group
5.6 grains
Lube HiMV 919 ES 35 SD 24 only 2 round Oehler problem
Coat 911 18 6
5.8 grains
Lube 974 44 16
Coat 947 18 7
6.0 grains
Lube 992 32 12
Coat 989 17 8

True Blue
7.4 grains
Lube 947 4 1
Coat 957 32 12
7.5 grains
lube 981 19 7
coat 989 20 7
7.8 grains
lube 1039 27 10
coat 1041 15 5

HS-6
8.8 grains
lube 953 31 13
coat 1010 41 16
9.0 grains
lube 1020 29 14
coat 1019 23 10
9.6 grains
lube 1062 80 35 4 rounds only
coat 1072 119 50
10.1 grains
lube 1115 70 26
coat 1097 63 25

Still pondering this, but I'm not sure I see an advantage to the poly coated bullets. I also believe I detected some loose crimps so I need to investigate that. Excuse the length it may be possible to have too much data :oops:

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Re: 2 Bullets, 3 Powders, lots of shooting

Postby GasGuzzler » 10 Jan 2019 05

Ohio3Wheels wrote:
True Blue
7.4 grains
Lube 947 4 1


This +1
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Re: 2 Bullets, 3 Powders, lots of shooting

Postby Ranch Dog » 10 Jan 2019 06

I'm getting into powder coating my semi-auto pistol bullets. Not that I have been dissatisfied with lubed bullets, but rather to facilitate bullet feeding on a progressive press. You listed velocity, but I would be more interested in the groups the achieve.
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Re: 2 Bullets, 3 Powders, lots of shooting

Postby mikld » 10 Jan 2019 12

I tried PCing bullets a couple years ago and coated bullets for 38/357, 9mm, 44 Spec/Mag, 45 ACP, 30-06, and 7.62x54r. Yep they are cleaner to handle and a bit cleaner to shoot, but I didn't find a huge advantage over my cast bullets. I didn't have my chrony running for all the calibers, but there seemed to be a velocity slight edge with the 9mm, 125 gr RNFP PCed bullets I loaded, less than 100 fps on the loads I tried. I loaded the PCed bullets with lead bullet data. Accuracy was on par with my cast bullets. but I do remember more fliers. I only shot a few in my Garand and Mosin Nagant, but not enough to get a good indication of their performance. My cast bullets/load don't lead the barrels much and accuracy is better than I can shoot, so PCing bullets has become something to do when I'm bored or just playing around...
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Re: 2 Bullets, 3 Powders, lots of shooting

Postby Ohio3Wheels » 10 Jan 2019 15

RD, I honestly didn't shoot for groups. I was indoors and resting with my elbows on the "bench" at the front of my cubical. My plan is to take the "best" load a batch and work off a rest first chance I get. First I've got to order most bullets. Mo Bullets uses a high tech coating that works with the polymer in acetone and then drying and baking. They are a distributor for the polymer.

First time I have ever had a SD of 1. I think some of the higher SDs and higher ESs may have been from light crimps. Something I'm looking at. Thinking right now maybe an eighth more if it doesn't mess up cases. I've got a batch of winter weather so time to contemplate and work up loads.

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Re: 2 Bullets, 3 Powders, lots of shooting

Postby Archer » 13 Jan 2019 19

Sensor 1" from the muzzle?

Are you certain you might not be reading muzzle blast gases as easily or as likely as the passage of the bullet???
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Re: 2 Bullets, 3 Powders, lots of shooting

Postby mr surveyor » 13 Jan 2019 20

Archer wrote:Sensor 1" from the muzzle?

Are you certain you might not be reading muzzle blast gases as easily or as likely as the passage of the bullet???



I've also wondered about the muzzle blast affecting readings of the bayonet style chronographs ... apparently it's not an issue


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Re: 2 Bullets, 3 Powders, lots of shooting

Postby Ohio3Wheels » 14 Jan 2019 14

As I understand it the sensors are an inductor of some sort and the field produced is disturbed by a chunk of metal moving through it. I do know that it is sensitive to the distance from sensor to bullet path.

Can,wait to get back outside and see what it does with black powder cartridges.

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