Big bullet drop

General discussion and information about the .204 Ruger.
gundogblue
New Member
Posts: 15
Joined: Wed Mar 02, 2016 8:26 am
.204 Ruger Guns: Savage model 12 FV

Big bullet drop

Post by gundogblue » Tue May 23, 2017 1:56 pm

I was at the range this mornning with my Savage model12 in 204 Ruger, my load is a Hornaday 32 gr Vmax and 25 grns RL 10, it was last chornographed at 4,210 FPS average of 10 shots. At first I was shooting at 100 yrd,and put 6 shots into a 0.379 in group. Then I moved to 200 yrds to see how much the bullet would drop, the bullet drop was 4 1/4 inches, I didnt expect that, I thought the bullet would drop no more than an inch or two!!! I just cant figure out why that bullet would drop so much at 200 yrds, If any of you guys can shed a little light on this Id be very gratful.
Thanks,
Paul

Advertisement


User avatar
Rick in Oregon
Moderator
Posts: 4341
Joined: Thu Dec 01, 2005 4:20 pm
.204 Ruger Guns: Sako 75V, Cooper MTV, Kimber 84M, Cust M700 11 Twist
Location: High Desert of Central Oregon
Contact:

Re: Big bullet drop

Post by Rick in Oregon » Tue May 23, 2017 3:45 pm

Paul, same load, same exact POA for the 200 yard target?

Sumthin' ain't right for sure, especially at that velocity. No scope adjustment done for the 200 yard target? No wind blowing in from a nearby canyon or other anomaly?
Semper Fortis
Rick in Oregon
NRA Life/OHA/VHA/VVA

Oregon, East of the Cascades - Where Common Sense Still Prevails
Image

gundogblue
New Member
Posts: 15
Joined: Wed Mar 02, 2016 8:26 am
.204 Ruger Guns: Savage model 12 FV

Re: Big bullet drop

Post by gundogblue » Tue May 23, 2017 4:15 pm

Rick,
Same load, all I did was put a plain piece of paper with a one inch dot out to the 200 yrd line, then I put the crosshairs on the dot and pulled the trigger. I fired five rnds and all grouped about one inch, four and a quarter inches below the dot, I didnt make any scope adjustments as I wanted to see what the bullet drop would be at two houndred yrds. I shot it exactally the same way I shot it at 100 yrds, and shes spot on at 100 yrds but four and a quarter inches low at 200 yrds!! I know I cant figure it out.

johnhenry
New Member
Posts: 22
Joined: Tue Feb 23, 2016 5:32 pm
.204 Ruger Guns: M-77 Hawkeye Predator .204
Location: East Lyme, CT

Re: Big bullet drop

Post by johnhenry » Wed May 24, 2017 6:02 am

Doesnt make sense.
Maybe, sight it in at 200 then check it at 100. Reversing the process may offer up an answer?

dsandfort
Junior Member
Posts: 81
Joined: Thu Aug 09, 2012 12:19 pm
.204 Ruger Guns: Savage 12 BTCSS

Re: Big bullet drop

Post by dsandfort » Wed May 24, 2017 7:02 am

The mv sounds a little suspicious. 25gr of 10x "should" give you around 3800-3900 fps by the book (Lyman #49). Might account for some of the unexpected drop. Even so, I wouldn't expect much more than 1 MOA drop.
Did the POI come back to zero when you moved back to 100? Maybe a scope shift.

Bill K
Senior Member
Posts: 1289
Joined: Tue Jan 18, 2011 10:00 am
.204 Ruger Guns: also now, a Savage switch bull barrel in 204R. 23 inch SS
Location: Lake Forest, Ca.

Re: Big bullet drop

Post by Bill K » Wed May 24, 2017 7:44 am

I would say or think the same. At 4200 plus, that bullet should not drop that much. I would recheck the FPS, then run another 100 yard group, then a 200 yard one and then another at 100, back too back and see what you come up with. Just does not compute with a drop of 4 inches. Bill K

gundogblue
New Member
Posts: 15
Joined: Wed Mar 02, 2016 8:26 am
.204 Ruger Guns: Savage model 12 FV

Re: Big bullet drop

Post by gundogblue » Wed May 24, 2017 10:46 am

After I shot at 200 yrds I cranked the scope back for 100 yrds and she was right on. Maybe my buddies chronograph was wrong. I'm going to zero my scope for 200 yrds, then shoot it at 100 yrds to see how high the bullets impact the target. My scope is a 2001 Nikon Monarch, that's when they were still made in Japan, it's a very good scope. There's gotta be something I'm overlooking.

Bill K
Senior Member
Posts: 1289
Joined: Tue Jan 18, 2011 10:00 am
.204 Ruger Guns: also now, a Savage switch bull barrel in 204R. 23 inch SS
Location: Lake Forest, Ca.

Re: Big bullet drop

Post by Bill K » Wed May 24, 2017 8:58 pm

Waiting now too see if you find out that you miss-dialed the scope. My shooting partner, did just such a thing, the last chuck hunt and missed 3 times, shooting about 1-2 ft low, when the rifle and all were dead on the trip prior. Bill K

B23
New Member
Posts: 11
Joined: Sun Feb 19, 2017 3:57 pm
.204 Ruger Guns: CZ 527 Varmint

Re: Big bullet drop

Post by B23 » Thu May 25, 2017 8:27 am

Often, many scopes don't track like they should. If you diealed up for shooting at 200 yards, I'd say it is either the scope isn't tracking like it's supposed to or you possibly dialed incorrectly. It would take a significant velocity error to have that much drop going from 100 to 200 yards so I don't really think that's your problem.

dsandfort
Junior Member
Posts: 81
Joined: Thu Aug 09, 2012 12:19 pm
.204 Ruger Guns: Savage 12 BTCSS

Re: Big bullet drop

Post by dsandfort » Thu May 25, 2017 8:39 am

I'm confused.....as usual.
You first told Rick you simply moved the target to 200 yards, aimed and shot. Then you said you "cranked the scope". If you did dial the scope, perhaps it's as simple as 1/4 versus 1/8 MOA on your elevation turret. How many clicks did you give it and are you sure you went the right way?
I have been guilty of wrong way turns on a scope or 2.

User avatar
Rick in Oregon
Moderator
Posts: 4341
Joined: Thu Dec 01, 2005 4:20 pm
.204 Ruger Guns: Sako 75V, Cooper MTV, Kimber 84M, Cust M700 11 Twist
Location: High Desert of Central Oregon
Contact:

Re: Big bullet drop

Post by Rick in Oregon » Thu May 25, 2017 8:44 am

dsandfort wrote:I have been guilty of wrong way turns on a scope or 2.
I'm also guilty of that, and I wondered the exact same thing. Seems like this issue is human-related, and not mechanical or ballistically induced. In the end, I've muttered to myself....."crap, I did that?" :oops:
Semper Fortis
Rick in Oregon
NRA Life/OHA/VHA/VVA

Oregon, East of the Cascades - Where Common Sense Still Prevails
Image

skipper
Moderator
Posts: 841
Joined: Thu Feb 09, 2006 3:32 am
.204 Ruger Guns: Remington XR 100, Custom build Lilja/Panda/Shehane/Jewell
Location: Cypress, TX

Re: Big bullet drop

Post by skipper » Thu May 25, 2017 10:58 am

Repeat the test without adjusting the scope. Just simply move the target to 200 yards.
Hold 'em & Squeeze 'em

gundogblue
New Member
Posts: 15
Joined: Wed Mar 02, 2016 8:26 am
.204 Ruger Guns: Savage model 12 FV

Re: Big bullet drop

Post by gundogblue » Thu May 25, 2017 11:03 am

Something is not right, and Im the culpret, I dont know what Im missing or what I've overlooked. what I originally done was fire my rifle at 100 yrds, it was spot on, then I fired it at 200 yrds without touching the scope, and the impact was 4 1/4 inches low. Since my scope is 1/8 inch at 100 yrds, it would be 1/4 inch at 200 yrds, correct? I cranked my scope up 17 clickes, 17X.25=4.25. I then fired at the target, a one inch dot at 200 yrds, the impact was about 1/2 inch high of the dot, but I beleave that was operator error. I then cranked my scope down 17 clicks and fired at the target at the 100 yrd line, and it was spot on.
I've just finished loading 40 new rnds, all charges were double weighed,as the charges came off the chargemaster, they were put on the ballance beam scale, all brass was trimmed to length, cartridge length measured from the ojive is 1.982, that length works best for my rifle useing the 32 grn Vmax. Since I can't figure out whats wrong I figure the best thing to do is repete everything with cartridges that were very carfully put together and documenting everything I do at the range. Im going to the range tomorrow to try this thing again, the weather here in central In is going to be almost perfect, 64 degrees, 71% humidity, and the winds will be 2 mph WNW, and Im shooting due south. as soon as I get home from the range I'll post a range report and hopfully put this enigma to rest.

GJS
New Member
Posts: 3
Joined: Fri Nov 13, 2009 6:23 pm
.204 Ruger Guns: stiller dimondback custom

Re: Big bullet drop

Post by GJS » Fri May 26, 2017 1:04 am

That's more like the drop at 300 yards, are you sure the range was 200?

Advertisement


Jim White
Moderator
Posts: 1314
Joined: Mon Nov 03, 2008 2:06 pm
.204 Ruger Guns: CZ-527, Remington 700 VLTHSS

Re: Big bullet drop

Post by Jim White » Tue May 30, 2017 8:02 pm

Have you done a box test with the scope at 100 yards [since it seemed to shoot good at that distance]? If not I would try that, could be a scope issue.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest