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Novice paper patcher questions

Posted: Tue Oct 20, 2020 12:34 pm
by Bulseyetom
I have been shooting dual diameter pp bullets for about 6 months and found the dry patching posts quite interesting so I gave it a try this morning. I just did a few for practice and they appear far more uniform than my wet patched bullets. What do you look at when you finish patching a bullet to decide if it goes into the do over pile or is acceptable? I sometimes have a taper where the ends of the patch line up good on the ogive end but have a gap on the larger diameter base. What gap is allowable? How much of the base of the bullet should be covered when you tuck the patch in? On my dual diameter bullet where should I start the patch on the nose? I have been starting on the tip end of the bore riding section but is it just as good to start on the straight portion of the neck? When dry patching bullets that will not be loaded immediately, how do you keep the patch from unwrapping? I am shooting a 40-70 SS and have found some fair loads with smokeless but have had much better luck with black. Now that my fall hunts are over I am resuming my quest to find a black powder paper patched bullet load for hunting next fall. Thanks for any help. Tom

Re: Novice paper patcher questions

Posted: Tue Oct 20, 2020 2:58 pm
by bpcr shooter
for the smokeless part, you would be better off trying a groove dia bullet as the powder has a harder time upsetting the bullet.
patching DD bullets, I have a line where my ogive is on the bullet and keep the paper straight with that, as long as the final wrap does not overlap you should be good, you will have a taper as the bullet is bigger on one end its not really a big deal. I measured the bore dia part and made the patches to that length. As for a tail I like to have a 1/16-1/8 fold over. Keeping this consistent for me is key. If you get your depth set and then get more paper folded under the bullet it will make your OAL longer and not allow you to chamber the bullet (I run mine with .005ish cam in). As for storing them I just wet the bottom and place it on a candle warmer for a bit and it dries in place or I just make them as I load.


Matt

Re: Novice paper patcher questions

Posted: Tue Oct 20, 2020 4:15 pm
by beltfed
Actually, with the DD bullets, a person does not need bump up since the base is already
patched at least to groove diameter.
Kurt's snow shooting BP and with my 9+1 COWW/lino DDEPP bullets showed absolutely. No bump
up, but there was perfect engraving of the base band by the rifling and no sign of gas cutting.
Therefore, I expect ( I need to try some smokeless loads with DDEPPs) that a person
should be able to do well with smokeless and DD bullets
beltfed/arnie

Re: Novice paper patcher questions

Posted: Tue Oct 20, 2020 4:48 pm
by Bulseyetom
Thanks for the input. I dry patched 20 to load this weekend and am convinced that this might be the way to go as my bullets certainly look better. The proof is in the shooting so will know more in a few weeks. Tom

Re: Novice paper patcher questions

Posted: Tue Oct 20, 2020 5:36 pm
by Kurt
These are the bullets Arnie is talking about.
I loaded these to Arnies instructions how he wanted them loaded for the .40-65 and a .40-70. I have both calibers with the Shiloh Factory chamber so they would be as close to his rifles.
I will say that you cant get much better then what these bullets showed as far as no nose setback but still a complete gas seal to keep the vertical down when you loose pressure behind the bullet. They left the barrel without runout, no signs for that going on. That short DD base held the bore section of the unmarked and more important the ogive held like a Jacketed HP bullet. When I recovered these bullets I was convinced that his DDEPP bullet was the way to go to get the most from then and also I see how he was able to shoot that 99 at 800 with just one a finger width out of the 10 ring on his last shot. I think the pressure on seeing all of those X and 10's got to him :D.
I always thought his 9/1 WW/A alloy was way to hard for a PP bullet but not so from what I saw.
The \last bullet on the right is one of mine that I wanted to show a friend that uses 1/20 T/L alloy with a single .06 polly wad. It ended up with a lot of nose setback and bad gas cuts. It was shot with a Shiloh Farmer in the .44-77 caliber.
The ogive was almost the same as Arnies .40's
IMG_3569 3.jpeg

Re: Novice paper patcher questions

Posted: Wed Oct 21, 2020 7:22 am
by bpcr shooter
beltfed wrote: Tue Oct 20, 2020 4:15 pm Actually, with the DD bullets, a person does not need bump up since the base is already
patched at least to groove diameter.
Kurt's snow shooting BP and with my 9+1 COWW/lino DDEPP bullets showed absolutely. No bump
up, but there was perfect engraving of the base band by the rifling and no sign of gas cutting.
Therefore, I expect ( I need to try some smokeless loads with DDEPPs) that a person
should be able to do well with smokeless and DD bullets
beltfed/arnie
Good to know!! I learn something new every day!!

Re: Novice paper patcher questions

Posted: Thu Oct 22, 2020 12:56 am
by bruce m
i patch my dd bullets wet.
i have by trial and error made a template with different angles, such that the patch fits both the base and the nose, and meets exactly all the way along the joint.
in effect the patch is shaped a little like a funnel when wrapped on the bullet.
when dried on a hotplate, the patch pulls tight and conforms to the shape of the bullet, while maintaining a perfect join.
bruce.

Re: Novice paper patcher questions

Posted: Thu Oct 22, 2020 2:25 am
by martinibelgian
Might just give harder bullets a try with my groove dia. PP bullets, that looks impressive....