Forums46
Topics537,970
Posts9,731,204
Members87,051
|
Most Online25,604 Feb 12th, 2024
|
|
|
Testing loads for groups
#6262776
04/16/16 06:40 PM
|
Joined: Jun 2009
Posts: 1,879
jlsbassman
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Jun 2009
Posts: 1,879 |
What does everybody use as support for testing group size? I have been using bipod and bag in the rear. Just seeing what others use.
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6262946
04/16/16 09:49 PM
|
Joined: Jul 2012
Posts: 15,701
603Country
THF Celebrity
|
THF Celebrity
Joined: Jul 2012
Posts: 15,701 |
I use a big bag in the front and a small bunny ear bag for the rear.
Not my monkeys, not my circus...
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263016
04/16/16 10:54 PM
|
Joined: Feb 2009
Posts: 313
Ritter
Bird Dog
|
Bird Dog
Joined: Feb 2009
Posts: 313 |
I always recommend the most stable rest you can use. In a perfect world it would be a solid(not $30 plastic rest) front benchrest and at minimum a rear rabbit ear filled with heavy sand on top of a rock solid bench.
After all, you are testing the ammunition/rifle combination and will want to remove the shooter from the equation as much as possible.
There's nothing wrong with using a bipod and rear bag just make sure you preload the bipod, use the same cheek pressure and follow through for every shot.
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263107
04/16/16 11:56 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
Bipod and rear bag. But that is a learned skill, that not everyone knows how to do.
Bottom line is, as with any type rifle shooting, is get still. As well as making sure the forearm isn't touching the barrel, whatever the front rest may be.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: J.G.]
#6263150
04/17/16 12:30 AM
|
Joined: Sep 2006
Posts: 32,498
kmon11
junior
|
junior
Joined: Sep 2006
Posts: 32,498 |
Bipod and rear bag. But that is a learned skill, that not everyone knows how to do.
Bottom line is, as with any type rifle shooting, is get still. As well as making sure the forearm isn't touching the barrel, whatever the front rest may be. . Some rifle stock combinations do not lend themselves to the bipod front as the front rest. I hear it said wood stocks are the worst for this but the "Tupperware" plastic/synthetic stocks found on lots of factory rifles are just as bad or worse for letting the barrel and forearm touch or even more pressure to be applied.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
|
|
|
Re: Testing loads for groups
[Re: kmon11]
#6263163
04/17/16 12:39 AM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
Right.I've figured out a way to combat that.
You need a piece of angle iron, 2"X4", square tubing, something solid ahead of the bipod feet, clamped or screwed down. Load the bipod very heavily, and many stocks will flex away from the barrel. I can make a Tikka, and Savage clear the barrel by an eighth inch or more, with the factory stock.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263521
04/17/16 12:16 PM
|
Joined: Feb 2013
Posts: 1,389
BassCat'99
Pro Tracker
|
Pro Tracker
Joined: Feb 2013
Posts: 1,389 |
Is it good, bad or other wise to use a carpet mat on the bench top? In this case a heavy wooden bench.
22 Creedmoor
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263539
04/17/16 12:41 PM
|
Joined: Dec 2008
Posts: 22,630
Cast
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 22,630 |
I use a saddle blanket on our concrete benches.
Cast I have a short attention spa
|
|
|
Re: Testing loads for groups
[Re: J.G.]
#6263553
04/17/16 12:53 PM
|
Joined: Aug 2006
Posts: 11,657
colt45-90
Texas colt45
|
Texas colt45
Joined: Aug 2006
Posts: 11,657 |
Right.I've figured out a way to combat that.
You need a piece of angle iron, 2"X4", square tubing, something solid ahead of the bipod feet, clamped or screwed down. Load the bipod very heavily, and many stocks will flex away from the barrel. I can make a Tikka, and Savage clear the barrel by an eighth inch or more, with the factory stock. are you pushing forward against the angel iron?
hold on Newt, we got a runaway
|
|
|
Re: Testing loads for groups
[Re: colt45-90]
#6263571
04/17/16 01:05 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
Yes, that is loading the bipod. The harder the recoil of the cartridge, the more I load the bipod.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263702
04/17/16 02:27 PM
|
Joined: Jun 2009
Posts: 1,879
jlsbassman
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Jun 2009
Posts: 1,879 |
I feel like for me the bipod and rear bag are working best. I've tried using the sand bag in front but doesn't seem as stable. The benches at the range where I shoot have nothing to load the bipod against except a sand bag. Is loading the bipod more for controlling recoil jump or does it help you stabilize also. I tried loading against the sand bag but it seems to want push away. My recoil is not that big of a deal, I'm shooting a ruger precision rifle in 243 win. I've just started loading for it, I've had a couple groups where all are touching in a circle, had some groups where some are touching stringing right to left. Most groups, I will have 4 rounds touching and then have 1 off a 1/4" or so, I was just wondering how much of that would be human error or load/gun error.
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263730
04/17/16 02:42 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
Loading is for control, as well as to combat recoil. But I do it prone, and the goal is to witness impact down range. In other words, I see the bullet I shot hit the target, or splash in the dirt. I can make a correction as needed. You can load the bipod on a bench, and it will help, but not as effectively as doing it prone.
The only time I shoot from a bench is three days of prairie dogs, and even then I have angle iron bolted to the end of the bench.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263741
04/17/16 02:50 PM
|
Joined: Dec 2009
Posts: 5,455
Big Fitz
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Dec 2009
Posts: 5,455 |
Jason taught me the technique for loading the bipod and it does help me steady the rifle. My back tends to hurt shooting prone so I have used a piece of angle iron clamped to a bench with the same positive results. Some of the shooting mats have pockets/slots to place the bipod feet allowing you to load it. Give it a try without ammo and see just how stable you can get.
I was wrong...on anything technical. Fitz............. is right, ya know............
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263750
04/17/16 02:55 PM
|
Joined: Jun 2009
Posts: 1,879
jlsbassman
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Jun 2009
Posts: 1,879 |
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263816
04/17/16 03:49 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
That's a mass produced rifle, you're doing all the good! To get any tighter than that, typically means a cut rifled barrel, chambered by a Smith that is extremely picky. That's another $700
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263895
04/17/16 04:40 PM
|
Joined: Nov 2007
Posts: 9,521
RiverRider
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Nov 2007
Posts: 9,521 |
That rifle does shoot, and it might get even better after a few more rounds. Ya gonna swap it off, JLS?
"Arguing with you always makes me thirsty." -Augustus McRae
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6263934
04/17/16 05:14 PM
|
Joined: Jun 2009
Posts: 1,879
jlsbassman
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Jun 2009
Posts: 1,879 |
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6264012
04/17/16 06:25 PM
|
Joined: Jun 2011
Posts: 33,955
Buzzsaw
THF Celebrity
|
THF Celebrity
Joined: Jun 2011
Posts: 33,955 |
the .243 is the "sleeper" of the RPR's 7 twist barrel, scoot those D-Tacs fast 6mm's are almost as cool as a fast 6.5's
SPACE FOR RENT
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6264504
04/18/16 02:01 AM
|
Joined: Nov 2007
Posts: 9,521
RiverRider
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Nov 2007
Posts: 9,521 |
Gotta wonder why it's not available in 7mm-08 or .260 Rem.
"Arguing with you always makes me thirsty." -Augustus McRae
|
|
|
Re: Testing loads for groups
[Re: RiverRider]
#6264531
04/18/16 02:19 AM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
They already make the 6.5 Creedmoor. The .260 being the sister to it, producing exactly the same external ballistics, often times. It makes sense why they don't offer both.
The head shed may think the 7mm-08 is also too close to the .308, though we all know it is not.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Testing loads for groups
[Re: jlsbassman]
#6264872
04/18/16 01:33 PM
|
Joined: Nov 2010
Posts: 5,275
jeepercreeper
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Nov 2010
Posts: 5,275 |
I use Harris/Larue bipod up front. Wiebad bags in rear. I may actually swap to true sandbags in the rear because I found I was shooting slightly better with them.
|
|
|
Moderated by bigbob_ftw, CCBIRDDOGMAN, Chickenman, Derek, DeRico, Duck_Hunter, hetman, jeh7mmmag, JustWingem, kmon11, kry226, kwrhuntinglab, Payne, pertnear, rifleman, sig226fan (Rguns.com), Superduty, TreeBass, txcornhusker
|