Pennsylvania Game News - August 2010 - 61

ing and experimenting with firearms and ammunition, I have learned that variables come not only from different brands of ammunition in the same firearms, but also in different firearms shooting the same brands of ammunition. The handloader works with variables when any one of the four components (primer, powder, case and bullet) is changed. At the range not long ago, I was shooting the new Savage Model 114 in .30-06. My friend Joe came along with his WWI Enfield 1917, also in .30-06. I had handloaded some Hornady 150-grain spitzers with a charge of IMR 4350 which, according to the manual, had a velocity around 2,900 fps. The bullets were seated just touching the lands in my Savage. I also had my chronograph, to see how close my loads would come to the published loads. Joe was acting as my spotter, and I put three rounds under 3/4-inch at 100 yards. I was pretty pleased with that, so I went to the chronograph to see the speeds. When the first shot read 3,210 fps, Joe and I looked at each other with the “Are you seeing what I’m seeing” look. A second round read 3,225 fps. My loads didn’t seem hot; the bolt lifted easily and the cases and

spent primers were in good shape, so we tried a couple of rounds through Joe’s Enfield and came up with 2,840 fps and 2,830 fps, which were certainly closer to what we expected. I always knew that each rifle has its own individual variables, and I’ve seen up to 125 fps differences between rifles in the same cartridge, but how do you explain an almost 300 fps difference? In reality, I was experiencing .300 Winchester Magnum ballistics out of my .30-06. That episode prompted me to further experiment, to expand on in this article. Maybe my findings will answer some questions that novice shooters might have, and maybe I can generate some discussion from veteran shooters who can send their findings my way. Who knows, it might be interesting to see what questions and answers we might come up with for future discussions. That night I trimmed and loaded 1973 military cases and Remington Peters cases with Hornady 165- and 180-grain BTSPs (boattail soft points), as well as 180-grain round-nose bullets, and 180-grain Sierra spitzers, all using IMR 4350 powder and Winchester large rifle primers. I also bought a box of factory Winchester 150-grain Power Points. The next weekend Joe and I, along with another friend, Rich, met at the range. We brought four .30-06 rifles: a Savage M114, Ml Garand, Enfield and a Browning ABolt, with a boss muzzle brake on it. As expected, each rifle grouped the different weight bullets in different places, although they all grouped within four inches of each other. After sighting in at 100 yards with the factory 150-grain load, the 165-grain load impacted about one inch lower and the 180- grain cartridge hit
THE TYPE of bullet (round nose versus spitzer) is an obvious variable when comparing ammunition through a particular firearm, but there are other variables that influence where the bullet hits the target.

AUGUST 2010

61



Pennsylvania Game News - August 2010

Table of Contents for the Digital Edition of Pennsylvania Game News - August 2010

Pennsylvania Game News - August 2010
Life & Times of the Whitetail Biologist
Contents
Three Centuries and Counting
A Different Perspective
Trappin’ a Bobcat
Getting Extreme with Scent Control
Wills Mountain Scrub Oak Barrens Restoration
The Greatest Conservation Story in American History
Pennsylvania’s “Other” Fox
The Conneaut Lake Goose Chase
Looking Back Through Binoculars
Field Notes
Conservation News
Off the Wire
Another View
The Naturalist’s Eye
Straight from the Bowstring
Fun Game
Lock, Stock & Barrel
Crossings
Pennsylvania Game News - August 2010 - Pennsylvania Game News - August 2010
Pennsylvania Game News - August 2010 - Cover2
Pennsylvania Game News - August 2010 - Life & Times of the Whitetail Biologist
Pennsylvania Game News - August 2010 - Contents
Pennsylvania Game News - August 2010 - Three Centuries and Counting
Pennsylvania Game News - August 2010 - 4
Pennsylvania Game News - August 2010 - 5
Pennsylvania Game News - August 2010 - 6
Pennsylvania Game News - August 2010 - 7
Pennsylvania Game News - August 2010 - A Different Perspective
Pennsylvania Game News - August 2010 - 9
Pennsylvania Game News - August 2010 - 10
Pennsylvania Game News - August 2010 - 11
Pennsylvania Game News - August 2010 - Trappin’ a Bobcat
Pennsylvania Game News - August 2010 - 13
Pennsylvania Game News - August 2010 - Getting Extreme with Scent Control
Pennsylvania Game News - August 2010 - 15
Pennsylvania Game News - August 2010 - 16
Pennsylvania Game News - August 2010 - 17
Pennsylvania Game News - August 2010 - Wills Mountain Scrub Oak Barrens Restoration
Pennsylvania Game News - August 2010 - 19
Pennsylvania Game News - August 2010 - 20
Pennsylvania Game News - August 2010 - The Greatest Conservation Story in American History
Pennsylvania Game News - August 2010 - 22
Pennsylvania Game News - August 2010 - 23
Pennsylvania Game News - August 2010 - 24
Pennsylvania Game News - August 2010 - Pennsylvania’s “Other” Fox
Pennsylvania Game News - August 2010 - 26
Pennsylvania Game News - August 2010 - 27
Pennsylvania Game News - August 2010 - The Conneaut Lake Goose Chase
Pennsylvania Game News - August 2010 - 29
Pennsylvania Game News - August 2010 - 30
Pennsylvania Game News - August 2010 - 31
Pennsylvania Game News - August 2010 - 32
Pennsylvania Game News - August 2010 - 33
Pennsylvania Game News - August 2010 - Looking Back Through Binoculars
Pennsylvania Game News - August 2010 - 35
Pennsylvania Game News - August 2010 - 36
Pennsylvania Game News - August 2010 - Field Notes
Pennsylvania Game News - August 2010 - 38
Pennsylvania Game News - August 2010 - 39
Pennsylvania Game News - August 2010 - 40
Pennsylvania Game News - August 2010 - 41
Pennsylvania Game News - August 2010 - Conservation News
Pennsylvania Game News - August 2010 - 43
Pennsylvania Game News - August 2010 - 44
Pennsylvania Game News - August 2010 - 45
Pennsylvania Game News - August 2010 - 46
Pennsylvania Game News - August 2010 - 47
Pennsylvania Game News - August 2010 - Off the Wire
Pennsylvania Game News - August 2010 - Another View
Pennsylvania Game News - August 2010 - 50
Pennsylvania Game News - August 2010 - 51
Pennsylvania Game News - August 2010 - The Naturalist’s Eye
Pennsylvania Game News - August 2010 - 53
Pennsylvania Game News - August 2010 - 54
Pennsylvania Game News - August 2010 - 55
Pennsylvania Game News - August 2010 - Straight from the Bowstring
Pennsylvania Game News - August 2010 - 57
Pennsylvania Game News - August 2010 - 58
Pennsylvania Game News - August 2010 - Fun Game
Pennsylvania Game News - August 2010 - Lock, Stock & Barrel
Pennsylvania Game News - August 2010 - 61
Pennsylvania Game News - August 2010 - 62
Pennsylvania Game News - August 2010 - 63
Pennsylvania Game News - August 2010 - Crossings
Pennsylvania Game News - August 2010 - NatureInse
Pennsylvania Game News - August 2010 - NatureInse
Pennsylvania Game News - August 2010 - Cover3
Pennsylvania Game News - August 2010 - Cover4
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