How Well Does it Shoot?
- Thread starter Ganderite
- Start date
Starting long and then seating rounds deeper until there are no marks is easy to explain and just about foolproof.
Pushing in a case and letting the bullet get pushed in assumes that the bullet does not get pulled back out a bit when the case is extracted. It would be possible for someone to get a bad reading and go with it.
I have used both and will use both in the future.
124gr.
I just tried the push/turn and repeat several times method, (to confirm measurements), with a bullet from that reloaded ammo, and a new Berry's RN. I found I get wildly different OAL values between the two brands. Obvious shape differences account for that. I think the reloaded ammo may use Campro. It took about 1.11" to clear the rifling. With the skinny Berry's RN, it was 1.20". Massive difference between the two.
Explains why I've been having problems with the reloaded stuff, when it can measure 1.15" overall, and needs to be ~1.11" to spin freely in my chamber. At the range, at times the bullet has been so stuck in the chamber, I've needed to grip the slide and "punch" the grip to get the cartridge out. One time the bullet stayed stuck in the chamber as powder went all over my arm. Ugh.
I will repeat this test on the press to confirm the measurements, and the press is better at making sure I've inserted the bullet square to the case, for more accurate numbers, as well as addressing your concern with bullet movement when inserted in a used case.
mudgunner49
CGN Ultra frequent flyer
Seriously - what's your problem??
For those who may have not read this before I will add this to the discussion. To find the maximum OAL for any bullet design in any individual gun:
1. Remove the barrel
2. Drop a bullet into the chamber and using a Vaneer Cailper measure from the base of the bullet to the top of the barrel hood where a case would sit flush.
3. Measure the length of the bullet.
4. Add the two measurements together and then deduct a couple of thousandths of an inch to account for variables in bullet shape and press flex.
5. Load a cartridge and check to see if the cartridge will load in your magazine.
The plunk test suggested above may give you a similar measurement but, as others have pointed out if the bullet is pulled out a bit from being held back by the rifling you are hooped.
All of that said I load all my 124 gr bullets cast or commercial plated or FMJ for all my 9MM guns at 1.10 and find they all feed fine. I test all my loads over a chronograph which is essential if you want to develop consistent ammunition. Over the chronograph I have not observed any significant variance in results from one primer brand to the next. Accuracy is very much shooter dependent. If you can't shoot accurately off a bench your results won't really mean to much or at least be subjective.
Take Care
Bob
1. Remove the barrel
2. Drop a bullet into the chamber and using a Vaneer Cailper measure from the base of the bullet to the top of the barrel hood where a case would sit flush.
3. Measure the length of the bullet.
4. Add the two measurements together and then deduct a couple of thousandths of an inch to account for variables in bullet shape and press flex.
5. Load a cartridge and check to see if the cartridge will load in your magazine.
The plunk test suggested above may give you a similar measurement but, as others have pointed out if the bullet is pulled out a bit from being held back by the rifling you are hooped.
All of that said I load all my 124 gr bullets cast or commercial plated or FMJ for all my 9MM guns at 1.10 and find they all feed fine. I test all my loads over a chronograph which is essential if you want to develop consistent ammunition. Over the chronograph I have not observed any significant variance in results from one primer brand to the next. Accuracy is very much shooter dependent. If you can't shoot accurately off a bench your results won't really mean to much or at least be subjective.
Take Care
Bob
Sakoman .308
CGN Ultra frequent flyer
- Location
- Nova Scotia
Ganderite, Thank you for sharing your experience.
mudgunner49
CGN Ultra frequent flyer
Not crying in my Cheerios, just wondering where all childish name-calling came from, and if perhaps I'd missed something and we had history or something - hard to tell with screen names and all. No need to call tele-health or anything, I'm all OK. I usually don't call folks names unless it's to their face, but I understand there are those out there who don't do adult very well...
I like my method better. Take fired casing insert bullet, take that round and push into your chamber, when it's flush, pop out the case and measure that, minus 10 thou for tolerances and golden. I did that with some powder coated bullets needed to loas at 1.10" to feed reliabily.
Ganderite, I may need to find out where your getting all your bulk drums from after I'm done school... Theres an automated 1050 in my future!!!
mudgunner49
CGN Ultra frequent flyer
Be safe...
This ^^^ Ganderites posts are always info filled....and I gotta like anybody that gets powder by the drum!!!
