Inherent Cartridge Accuracy

[Smaug]

Industry standard? That's debatable. Maybe in a production environment, daily testing of the same thing over and over again. Most gunwriters, folks who test guns for a living, aren't using them.

I didn't say they didn't work, I said they were overrated. People bench test more rifles than handguns, by far. Where is the rifle version?

Fair enough. I have no reason to doubt you, especially since you have one yourself.

Also... I was reading gun reviews yesterday and paid particular attention to the fine print below the velocity/accuracy section. They use all different types of rests, but they specify what type they use, and I didn't see any on the Ransom Rest. I was thinking of reading the reviews in the 90s... back then, it seemed like they all had to have a Ransom Rest to be credible.

 

[CraigC]

Fair enough. I have no reason to doubt you, especially since you have one yourself.

Also... I was reading gun reviews yesterday and paid particular attention to the fine print below the velocity/accuracy section. They use all different types of rests, but they specify what type they use, and I didn't see any on the Ransom Rest. I was thinking of reading the reviews in the 90s... back then, it seemed like they all had to have a Ransom Rest to be credible.

That's probably when the myths were born. I tend to take the writers who use a Ransom Rest less seriously than those who do not.

IMHO, the biggest factor here is that handguns are more difficult to shoot accurately than rifles. That very few shooters actually take the time to develop their bench technique with handguns. So they project their own limitations onto others and assume that the only way to get a credible result, is to use a Ransom Rest. This includes gun writers who are primarily rifle shooters.

 

[Durango_Dave]

To bring the thread back on track I think my 45 Colt Vaquero is inherently inaccurate. My bullets can't fit through the cylinder neck without force. I don't think that's right. Bullets force the cylinder forward getting swagged to the throat diameter. Then they go through the barrel.

https://www.brownells.com/gunsmith-...olver-cylinder-throating-reamer-prod7700.aspx


Has anyone ever used the revolver cylinder throating reamer?

I know I need to take some very accurate measurements. If I decide to go through with it I'll take some before before and after shots at targets to see how much improvement it makes(if any).
And no I do not have a Ransom Rest.

 

[CraigC]

If a .452" bullet won't pass through the throats, I'd send my cylinder to Fermin Garza to ream them to .4525". The only reason I'd slug the barrel is to determine if there was a constriction at the threads.

https://fermincgarza.com/

 

[Jim Watson]

I tend to take the writers who use a Ransom Rest less seriously than those who do not.

How about the guy who said that the first round hand chambered often hits away from those chambered by recoil so he only counted shots 2-5? Then he concluded that the best 3 out of 5 on sandbags gave about the same spread as a machine rest.

There was the writer whose standard was 2 inches at 25 yards from "rollover prone."

I don't think NRA Dope Bag reports bother with a machine rest.

I wonder how the 50mm at 50m Swiss Sig P210 targets were shot. I once saw a picture of somebody's factory test setup, an experienced shooter working hand held off a rest with a bench mounted cheekpiece to fix his line of sight. Quicker to run a shipment of guns through than clamping them in a machine rest.

 

[CraigC]

How about the guy who said that the first round hand chambered often hits away from those chambered by recoil so he only counted shots 2-5? Then he concluded that the best 3 out of 5 on sandbags gave about the same spread as a machine rest.

There was the writer whose standard was 2 inches at 25 yards from "rollover prone."

I don't think NRA Dope Bag reports bother with a machine rest.

I wonder how the 50mm at 50m Swiss Sig P210 targets were shot. I once saw a picture of somebody's factory test setup, an experienced shooter working hand held off a rest with a bench mounted cheekpiece to fix his line of sight. Quicker to run a shipment of guns through than clamping them in a machine rest.

I have to assume there's been a lot of lazy writing going on. Just as it takes some effort to develop a good, repeatable bench technique, it takes some effort to get the Ransom Rest setup too.

I don't even bother opening the NRA rags any more.