|
Joined: May 2011
Posts: 167
Campfire Member
|
OP
Campfire Member
Joined: May 2011
Posts: 167 |
I’ve been loading for a 22 Creedmoor that I recently had built and have a question about bullet depth in the case. I want to shoot 88-95 grain bullets but when seated .005 off the lands the long bullets are .5” in the case. This puts the bottom of the bullet below the case body/shoulder point a bit. Is this safe? I assumed the smith knew with a 7 twist barrel I planned on shooting heavy/long bullets but we all know what that makes me.
Wac em and stack em
|
|
|
|
Joined: Dec 2004
Posts: 14,467
Campfire Outfitter
|
Campfire Outfitter
Joined: Dec 2004
Posts: 14,467 |
Some believe that pressure will "grip" the base of a bullet that extends below the case neck into the powder space. It's not true. You'll be fine.
Don't be the darkness.
America will perish while those who should be standing guard are satisfying their lusts.
|
|
|
|
Joined: Dec 2019
Posts: 16,391
Campfire Ranger
|
Campfire Ranger
Joined: Dec 2019
Posts: 16,391 |
Bullet profile will affect depth.. Obviously a RN carries more weight forward ....
Last edited by OldmanoftheSea; 11/18/20.
-OMotS
"If memory serves fails me..." Quote: ( unnamed) "been prtty deep in the cooler todaay "
|
|
|
|
Joined: Mar 2010
Posts: 1,980
Campfire Regular
|
Campfire Regular
Joined: Mar 2010
Posts: 1,980 |
Bullet profile will affect depth.. Obviously a RN carries more weight forward .... Sounds like a good option for a fast twist creed 💡 Don’t beat around the bush, speak to your gunsmith and if he won’t re throat get someone who knows what they are doing to sort it out
|
|
|
|
Joined: Oct 2002
Posts: 13,292
Campfire Outfitter
|
Campfire Outfitter
Joined: Oct 2002
Posts: 13,292 |
Some believe that pressure will "grip" the base of a bullet that extends below the case neck into the powder space. It's not true. You'll be fine. The way pressure works it would seem there would be some of it applied to the body of the bullet inside the case that is not pushing the bullet out of the case. A half inch of bullet down in the case seems like a lot. That said for years I was a big fan of the 300 Winchester magnum and some of the bullets I used extended pretty deep but I had zero issues and every 300 Win Mag I have owned has been a fine shooter.
|
|
|
|
Joined: Dec 2004
Posts: 14,467
Campfire Outfitter
|
Campfire Outfitter
Joined: Dec 2004
Posts: 14,467 |
Some believe that pressure will "grip" the base of a bullet that extends below the case neck into the powder space. It's not true. You'll be fine. The way pressure works it would seem there would be some of it applied to the body of the bullet inside the case that is not pushing the bullet out of the case. A half inch of bullet down in the case seems like a lot. That said for years I was a big fan of the 300 Winchester magnum and some of the bullets I used extended pretty deep but I had zero issues and every 300 Win Mag I have owned has been a fine shooter. Pressure IS applied all the way around the circumference of the exposed body of the bullet---equally from all around, resulting in no net lateral movement in any direction. However, the gases cannot grip the bullet's base and therefore it does not impede the bullet's movement out of the neck.
Don't be the darkness.
America will perish while those who should be standing guard are satisfying their lusts.
|
|
|
|
Joined: Jul 2013
Posts: 9,189
Campfire Outfitter
|
Campfire Outfitter
Joined: Jul 2013
Posts: 9,189 |
Yeah, make a dummy round or two and have your smith re-throat it appropriately. No biggie.
I belong on eroding granite, among the pines.
|
|
|
|
Joined: Feb 2009
Posts: 11,894
Campfire Outfitter
|
Campfire Outfitter
Joined: Feb 2009
Posts: 11,894 |
No problems at all. You should hear what some say about cast bullets.
|
|
|
|
Joined: May 2011
Posts: 167
Campfire Member
|
OP
Campfire Member
Joined: May 2011
Posts: 167 |
I have fired 35 rounds now with two different powders and all with the 88 eldm bullet seated what seems to me to be too deep in the case. I shot a 5 shot group today for the first time and it was around 1/2” at 120 yards. Average speed was 3140 FPS with no signs of high pressure and the SD was 42. Maybe I’m over thinking the whole thing and should just shoot some stuff!
Wac em and stack em
|
|
|
|
Joined: Jun 2007
Posts: 21,914
Campfire Ranger
|
Campfire Ranger
Joined: Jun 2007
Posts: 21,914 |
I dunno, seems a 223 Remington has had that issue, if it is one, from inception.
The 300 Win. example pales in comparison.
|
|
|
|
Joined: Jul 2005
Posts: 6,709
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2005
Posts: 6,709 |
Yes, you are overthinking it.
Old Corps
Semper Fi
Get off my lawn.
FJB
|
|
|
|
Joined: Dec 2005
Posts: 2,915
Campfire Regular
|
Campfire Regular
Joined: Dec 2005
Posts: 2,915 |
Plus side is you have more throat to work with in terms of erosion down the road. Might give you a few extra rounds on the barrel provided it's safe.
|
|
|
|
Joined: May 2009
Posts: 1,349
Campfire Regular
|
Campfire Regular
Joined: May 2009
Posts: 1,349 |
You may run into pressure before you reach published max load because of lack of case capacity. Happened to me on a chamber that was cut really short on freebore.
|
|
|
|
Joined: Jun 2004
Posts: 44,710
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Jun 2004
Posts: 44,710 |
You may run into pressure before you reach published max load because of lack of case capacity. Happened to me on a chamber that was cut really short on freebore. It may not have been all about capacity. With the really short freebore how close to the lands were you loading compared to what would have been typical for the standard chamber used to develop the published data?
|
|
|
|
Joined: Dec 2012
Posts: 1,906
Campfire Regular
|
Campfire Regular
Joined: Dec 2012
Posts: 1,906 |
While not optimum you will probably be fine unless you get Donuts on your brass then things turn south, thats why I prefer a bullet seated at or just above the neck shoulder junction.
|
|
|
|
Joined: Oct 2002
Posts: 13,292
Campfire Outfitter
|
Campfire Outfitter
Joined: Oct 2002
Posts: 13,292 |
Some great gunwriter of the olden days said bullets reaching into the case is a minor ballistic crime!
|
|
|
446 members (300jimmy, 222Sako, 007FJ, 1lesfox, 1lessdog, 06hunter59, 38 invisible),
2,444
guests, and
1,035
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,187,731
Posts18,400,932
Members73,822
|
Most Online11,491 Jul 7th, 2023
|
|
|
|