FYI- 8mm swaged Ruger 303 projie testing.

So they Wont go all the way in, i Seated so base of bullet is base of shoulder, Pics attatched.

Throat issue here unsafe.............?!!?!?

sob6Jzo.jpg


even before this i seated the projectile in like 1mm an pushed it in, hit the throat i guess? then seated further an wouldnt only go so far, seated projie to the base for maximum room and it hits like below
LH0hHMO.jpg
 
Take one of your old fired cases from the Ruger. Do not resize it. Take one of your new bullets and see if you can fit it into the case by hand. If it slides in easily, then you wont have a neck problem. If there is interference, then you have a neck problem and you should not use this combination of bullet and brass in your rifle. Possible remedies include turning the necks down on your existing brass or using some other brand of brass that has a thinner wall thickness at the neck.
If your brass and bullet pass the above test, then the problem you have is likely the bullet seated too far out. (I assume you have trimmed the cases.) Speer bullets have a relatively stout ogive profile causing then to engage the rifling early. BTW - Seating the bullets below the base of the neck is not an issue - however, if you have partially resized or neck sized your brass seating the bullet can cause the shoulder to grow radially and cause interference when trying to chamber the round. (ask me how I know...)If this happens, you must resize the case more fully to avoid the interference at the shoulder.
 
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Like a tight revolver cylinder .429 and a .431 barrel , the only way to get any accuracy was to have the cylinder honed to match. As suggested either find thinner necked brass or turn down the necks. After this if it shoots you can look at a more permanent cure.
 
There are some real basics that need to be followed and 23 posts on, I don't see clear indication of that:

1. as already suggested, take a fired case and see if one of the 0.314" bullets slides fully in (past the base of the neck) and out of it easily with your fingers - it should be loose enough that it could drop to the bottom of the case by gravity alone. If not, there are remedies as already suggested; and
2. you need to determine the Max OAL for that bullet. Once that's established you will use that length or shorter for load development.
 
cosmic said:
Take one of your old fired cases from the Ruger. Do not resize it. Take one of your new bullets and see if you can fit it into the case by hand. If it slides in easily, then you wont have a neck problem. If there is interference, then you have a neck problem and you should not use this combination of bullet and brass in your rifle. Possible remedies include turning the necks down on your existing brass or using some other brand of brass that has a thinner wall thickness at the neck.
If your brass and bullet pass the above test, then the problem you have is likely the bullet seated too far out. (I assume you have trimmed the cases.) Speer bullets have a relatively stout ogive profile causing then to engage the rifling early. BTW - Seating the bullets below the base of the neck is not an issue - however, if you have partially resized or neck sized your brass seating the bullet can cause the shoulder to grow radially and cause interference when trying to chamber the round. (ask me how I know...)If this happens, you must resize the case more fully to avoid the interference at the shoulder.
Click to expand...

Dude i appreciate this reply!
We have a Neck issue for certain......... in a fired case, i cannot put the projectile in, with even a bit of force...... So this is down the Gurgler, without machine work...........

But, ill get the projies mic'd incase of substantial bounce back?? the dude who swaged em rekoned 315-316..... this is too much for the Ruger 1.... Say the barrel is .314 .....jacketed , cast may be a different game...

may need to swage them down to ".312" inverted commars, so as to bounce back .313.314 maybe!? from the current state
 
mbogo3 said:
Like a tight revolver cylinder .429 and a .431 barrel , the only way to get any accuracy was to have the cylinder honed to match. As suggested either find thinner necked brass or turn down the necks. After this if it shoots you can look at a more permanent cure.
Click to expand...

Andy said:
There are some real basics that need to be followed and 23 posts on, I don't see clear indication of that:

1. as already suggested, take a fired case and see if one of the 0.314" bullets slides fully in (past the base of the neck) and out of it easily with your fingers - it should be loose enough that it could drop to the bottom of the case by gravity alone. If not, there are remedies as already suggested; and
2. you need to determine the Max OAL for that bullet. Once that's established you will use that length or shorter for load development.
Click to expand...

Thanks you 2, i think its the neck, but i will look over this gun again tonight!! , an the lenght of the actual projie oal
 
If you haven't measured them, you must. When I did it, there was almost 0.002" of springback depending on the bullet, so your 0.314" might measure at 0.316". Running it through a couple of times more reduced the springback a bit, but ultimately I had to choose a smaller die to get the desired end result.

Even if at a measured 0.314" there's still not enough neck clearance, there are options as cosmic said - it's too early to abandon this project!
 
update with a proper tool not the calipers, the numbers were in the vacinity of .3145 up to .3148 for the swaged 'new' bullets.

knowing they arnt going into the once fired cases, or the chamber at present, I have 3-5 days of Rain coming up in 2 days time, im going to check out the OAL and few other bits and pieces.. i rekon on cgn i have mentioned my barrel once might of been slugged a bit an was around .3135 region? and when i think about putting a bullet in the muzzle, the outside might be .314+ but the grooves are going to be tight - hence why it proberly looks a bit 'worse' than first glanced----

back to the Ruger 1 during the rainy week
 
cosmic said:
Take one of your old fired cases from the Ruger. Do not resize it. Take one of your new bullets and see if you can fit it into the case by hand. If it slides in easily, then you wont have a neck problem. If there is interference, then you have a neck problem and you should not use this combination of bullet and brass in your rifle. Possible remedies include turning the necks down on your existing brass or using some other brand of brass that has a thinner wall thickness at the neck.
If your brass and bullet pass the above test, then the problem you have is likely the bullet seated too far out. (I assume you have trimmed the cases.) Speer bullets have a relatively stout ogive profile causing then to engage the rifling early. BTW - Seating the bullets below the base of the neck is not an issue - however, if you have partially resized or neck sized your brass seating the bullet can cause the shoulder to grow radially and cause interference when trying to chamber the round. (ask me how I know...)If this happens, you must resize the case more fully to avoid the interference at the shoulder.
Click to expand...

legend
 
BTW - If you are currently using military brass, it is possible that switching to commercial brass may solve your neck problem. If memory serves, Federal is particularly thin...
 
cosmic said:
BTW - If you are currently using military brass, it is possible that switching to commercial brass may solve your neck problem. If memory serves, Federal is particularly thin...
Click to expand...

using RP , SB and PPU NNY mix, the rim varies on these brands so il see if necks do.
i know SB primers are tiiight.
i havnt got federal but may chase some up!
 
You guys wont believe it but in all my spin with the 8mm, i totally forgot i purchased those Hot Cor 180gr 311 !!!!!!! which everyone else has luck with, i like the shape of said projectile!


An with the RP Brass, im able to push a 8mm into the once fired......... its not slip in easy, but it isnt-- really hard..... im feeling good about this. i dummied two rounds with with different seating depths.....

touch base ina few days
 
Have you measured the inside and outside neck diameter on a fired case? Knowing those numbers might help with the troubleshooting your fit issues with the 8mm bullets.

I'm assuming the 311 hotcors you can load without issue?
 
Suther said:
Have you measured the inside and outside neck diameter on a fired case? Knowing those numbers might help with the troubleshooting your fit issues with the 8mm bullets.

I'm assuming the 311 hotcors you can load without issue?
Click to expand...

hey Suther, I've found out the RP brass will work and the cartridge goes all the way into the chamber once i seated the projectile right in and then tried it 2mm out and it chambered aswell, just wouldnt chamber at coal of the woodleighs for reasons mentioned in this thread- bullet shape i would no doubt say was my initial issue..

havnt loaded 180gr hot cors but they are 311as is the sierras 150gr, have loaded 215 woodleighs and 174s which are .312 So i think there really is a tiny tiny difference in neck thicknesses of the brass i have an i will pop a projie in every RP case to be sure so as when i load a few up for testing.


Do i tie a piece of string on the trigger an stand back? Or with what has happened in the past with oversized projies in weird bore sizes and stuff, aslong as the neck doesnt Pinch, we should be right?
if the loaded round enters the chamber without a drama- am i right to assume things should be ok.?
 
Make sure your Remington cases are trimmed and sized properly. You can try chambering each empty brass before loading, and do the bullet drop test as you state. Start with minimum loads... You shouldnt have any problems. I generally dont go more that a grain or two above minimum load - its easier on the brass, and my 80+ year old milsurps.
 
Ok a follow up:

RP is working fine.... some ive neck sized and squeezed the projies into and some ive left for testing in the chamber with a projie etc. ALL is ok here.
Im still Alive and have both eyes and nose as we speak---

i fired 3 rounds Today of 38gr Varget and said "323 swaged down" hot cors. Around 50 meters---- i wasnt being super precise but i aimed at the same place each time..... vastly vertically strung over around 4 inches- THIS IS NOT an accuracy test. i just wanted to note the Primers , extraction and make sure it all worked.

with noting that it wasnt an accuracy test...... i wont be turned off just now- i will play with some Charges and build up the pressure a bit more.............. before any claim is made.


the only Good news was all works swell....

my Chamber was really effin dirty, perhaps from the excess lube off some cases? weird, anyway i cleaned it right up and did a few passes of the bore too.... filthy.

keen on the 180gr .31 hot cor load so far, things being similiar apart from the shape of this projectile........ and the overall size, shouldnt, by rights, these projectiles at .3145 shoot alot better than a .311 ?? or is this bore size dilemma more the rifle itself, in regards to this foreend ,hanger and all that ####...??!?!?
 
Howdy- a little update on these 8mm swagers, seeing as the 30-06 is apart for some diy gunsmithing, ive decided to hunt with the Ruger 1 for a while,
ive been having reasonable results with arond 42gr varget with 180 hot cor and 174 woodleighs , so i pulled a couple an stuck the 170gr "314s" in an fired in feild position at 100m .. leaning off a tree.

all hits in around the centre of the box open sighted 100m, an shot a 180 hot core beside it (lands bit lower) an decided to load up a dozen at 42gr w 170gr projies and expect to be hunting this weekend.

im making a bit of a video on open sight hunting so in due time il link it up
 
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