-
Having trouble using the site?
Contact support
Simple OAL question
- Thread starter dgcie
- Start date
Re: Simple OAL question
Get a marker and color the bullet. If it hits the lands, you will be able to see the marks in the black. It's pretty easy to tell yr max length even without measuring equipment.
Get a marker and color the bullet. If it hits the lands, you will be able to see the marks in the black. It's pretty easy to tell yr max length even without measuring equipment.
Re: Simple OAL question
Yes, but it is pretty crude method at best and not the recommended way to check OAL.
Yes, but it is pretty crude method at best and not the recommended way to check OAL.
Re: Simple OAL question
Ok, can someone please explain to me the whole "trim your brass to fit a specific rifle" stuff? I'm really new to this stuff, so be gentle. I definitely need help from someone who has some experience on the subject and I'm afraid I'll blow up my bolt gun like Danny is...
Ok, can someone please explain to me the whole "trim your brass to fit a specific rifle" stuff? I'm really new to this stuff, so be gentle. I definitely need help from someone who has some experience on the subject and I'm afraid I'll blow up my bolt gun like Danny is...
Re: Simple OAL question
"Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired?"
No, OAL isn't the issue; it doesn't "blow up" guns.
KABOOMS are caused by powder over charge OR by letting case length grow so long the bullets are crimped in by the chamber and aren't free to move.
Case length is case length, it's NOT a 'case OAL'.
"Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired?"
No, OAL isn't the issue; it doesn't "blow up" guns.
KABOOMS are caused by powder over charge OR by letting case length grow so long the bullets are crimped in by the chamber and aren't free to move.
Case length is case length, it's NOT a 'case OAL'.
Re: Simple OAL question
"Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired?"
No, OAL isn't the issue; it doesn't "blow up" guns.
KABOOMS are caused by powder over charge OR by letting case length grow so long the bullets are crimped in by the chamber and aren't free to move.
Case length is case length, it's NOT a 'case OAL'.
"Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired?"
No, OAL isn't the issue; it doesn't "blow up" guns.
KABOOMS are caused by powder over charge OR by letting case length grow so long the bullets are crimped in by the chamber and aren't free to move.
Case length is case length, it's NOT a 'case OAL'.
Re: Simple OAL question
here you go
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/JKnXJxaAw2U"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/JKnXJxaAw2U" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object>
here you go
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/JKnXJxaAw2U"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/JKnXJxaAw2U" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object>
Re: Simple OAL question
Here's one for the combined minds: I have about 10 rounds that have a ring around the shoulder that won't allow them to be chambered. What the hell did i do now? Some won't start in the chamber and some will let me close the bolt, but it's extremely stiff. Help me, I'm new..
Here's one for the combined minds: I have about 10 rounds that have a ring around the shoulder that won't allow them to be chambered. What the hell did i do now? Some won't start in the chamber and some will let me close the bolt, but it's extremely stiff. Help me, I'm new..
Re: Simple OAL question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">
<span style="font-style: italic">"Help me, I'm new.."</span>
Pull the bullets, dump the powder, resize the brass and get it right this time.
Reassemble and shoot.</div></div>
It looks like i crushed my brass long ways, so I'm not sure if i can resize it. I adjusted my dies and I'll be reloading a few more rounds soon so I'll let everyone know how it goes.!
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">
<span style="font-style: italic">"Help me, I'm new.."</span>
Pull the bullets, dump the powder, resize the brass and get it right this time.
Reassemble and shoot.</div></div>
It looks like i crushed my brass long ways, so I'm not sure if i can resize it. I adjusted my dies and I'll be reloading a few more rounds soon so I'll let everyone know how it goes.!
Re: Simple OAL question
Do you have a reloading handbook? If not, get one. A lot of useful information in there.
Do you have a reloading handbook? If not, get one. A lot of useful information in there.
Re: Simple OAL question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MR JOSHUA</div><div class="ubbcode-body">Do you have a reloading handbook? If not, get one. A lot of useful information in there.</div></div>
Yeah, I have one.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MR JOSHUA</div><div class="ubbcode-body">Do you have a reloading handbook? If not, get one. A lot of useful information in there.</div></div>
Yeah, I have one.
Re: Simple OAL question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burkes the Nailer</div><div class="ubbcode-body">Here's one for the combined minds: I have about 10 rounds that have a ring around the shoulder that won't allow them to be chambered. What the hell did i do now? Some won't start in the chamber and some will let me close the bolt, but it's extremely stiff. Help me, I'm new.. </div></div>
I'm a novice too, but would also recommend that you make sure you are adequately lubing the INSIDE of the case necks as well. If I'm correctly picturing what you are describing, this can be cause when you are extracting the resized case from the die and the neck sizing pin has too much friction and actually stretches the case after resizing has been completed.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burkes the Nailer</div><div class="ubbcode-body">Here's one for the combined minds: I have about 10 rounds that have a ring around the shoulder that won't allow them to be chambered. What the hell did i do now? Some won't start in the chamber and some will let me close the bolt, but it's extremely stiff. Help me, I'm new.. </div></div>
I'm a novice too, but would also recommend that you make sure you are adequately lubing the INSIDE of the case necks as well. If I'm correctly picturing what you are describing, this can be cause when you are extracting the resized case from the die and the neck sizing pin has too much friction and actually stretches the case after resizing has been completed.
Re: Simple OAL question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Danny408</div><div class="ubbcode-body">Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired? </div></div>
Recommend that you read up on the difference between Overall Length (OAL) of a loaded cartridge verses headspace. Headspace is what typically makes a cartride difficult to chamber, and inadequate and overly adequate headspace can cause a undesireable results.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Danny408</div><div class="ubbcode-body">Is it safe to assume that in a bolt action if a round cycles properly then the OAL is fine and wont blow up or something when fired? </div></div>
Recommend that you read up on the difference between Overall Length (OAL) of a loaded cartridge verses headspace. Headspace is what typically makes a cartride difficult to chamber, and inadequate and overly adequate headspace can cause a undesireable results.
Re: Simple OAL question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burkes the Nailer</div><div class="ubbcode-body">Ok, can someone please explain to me the whole "trim your brass to fit a specific rifle" stuff? I'm really new to this stuff, so be gentle. I definitely need help from someone who has some experience on the subject and I'm afraid I'll blow up my bolt gun like Danny is... </div></div>
Again, from a novice reloader, but generally you only trim a case to match the SAAMI spec for the length of that case. For example, the spec for a .308 is 2.005, so if you have cases that measure longer than this AFTER they've been resized, then they need to be trimmed to this length. From my understanding of trimming and case length, this is not gun specific.
What is gun specific is how you adjust the headspace of the case, meaning the length from the head (base of the cartridge) to the mid-point of the tapered section (aka the datum). This figure is a variable depending on the gun, but needs to fall within a SAAMI spec for the cartridge. Some reloading dies (Lee) don't require you to know what the headspace is for your gun, they just have you ram the shell holder up to the base of the die during full length resizing. There's no problem with this either, but it's generally believe to not be the most accurate way to resize. The most accurate way to resize is to headspace the case -.002 from the actual headspace of the rifle, which you can determine by measureing the headspace on your once fired brass.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burkes the Nailer</div><div class="ubbcode-body">Ok, can someone please explain to me the whole "trim your brass to fit a specific rifle" stuff? I'm really new to this stuff, so be gentle. I definitely need help from someone who has some experience on the subject and I'm afraid I'll blow up my bolt gun like Danny is... </div></div>
Again, from a novice reloader, but generally you only trim a case to match the SAAMI spec for the length of that case. For example, the spec for a .308 is 2.005, so if you have cases that measure longer than this AFTER they've been resized, then they need to be trimmed to this length. From my understanding of trimming and case length, this is not gun specific.
What is gun specific is how you adjust the headspace of the case, meaning the length from the head (base of the cartridge) to the mid-point of the tapered section (aka the datum). This figure is a variable depending on the gun, but needs to fall within a SAAMI spec for the cartridge. Some reloading dies (Lee) don't require you to know what the headspace is for your gun, they just have you ram the shell holder up to the base of the die during full length resizing. There's no problem with this either, but it's generally believe to not be the most accurate way to resize. The most accurate way to resize is to headspace the case -.002 from the actual headspace of the rifle, which you can determine by measureing the headspace on your once fired brass.
