Contact the maker of your rifle for their instructions. It will depend on bullet weight. Assuming you mean a .50 cal MUZZLELOADER- and not a .50 Barrett- between 75 and 90 grains of ffG black powder is an average load for a patched ball.
Quick disclaimer load the rifle according to manufacturer load data. what is safe in my rifle may not be safe for yours. There that part is done. That depends on what the stag horn mag rifle likes. The rifle can safely handle 150 grains of powder. black powder is measured by volume not weight. I have a staghorn mag. in 50 cal and it likes 100 grains of pyrodex pellets. I have shot 150 grains of both loose pyrodex and pellets but with no great accuracy. All because the rifle can handle 150 grains of powder doesn't mean it will shoot your bullet accurately. My rifle likes the 100 grains and I get decent groups. There are other factors as well bare in mind different bullets and will shoot differently too.
You can do this by miking the bore of the rifle,if you do not feel comfortable doing this you may have a qualified gunsmith do this for you.Most 25 cal bores are .257 diameter,the 32 cal bore may be .321 or smaller depending on what caliber it is chambered for.
No. Absolutely not. A felon may not purchase, possess, or have access to firearms. Period.
Jack First or GunPartsCorp may have one.
Unless there are markings on the rifle, these may be difficult/ impossible to verify. Some low cost rifles were imitators of name brands, and may be similar in appearance.
Depends on the .30 cal. For 30-06 ammo, the retail sales price may vary from about .30 to .50 (in US dollars) per cartridge.
This rifle was manufactured by Mossberg. It is the same rifle as the Mossberg model 50. Although there may be a slight difference in the sights available on the two models, mechanically they are the same gun.
I just purchased one for 100.00 though I think it may be worth more.
Start at Numrich gun parts corp.they may be found on the web.
Your rifle was made for Sears by Marlin- it is their model 81- a popular rifle. Parts may be available on their website from gunpartscorp, or any good gunsmith.
It's not so much the model of air rifle it's the class of air rifle, and that is the PreCharged Pneumatic (PCP) class of air rifles. Makers like Air Arms, Evanix, Hammerli, and a few others are in this class. These produce more power than any C02, pump or springer air rifle, But these do cost a considerable amount more than a regular air rifle.There are other PCP class air rifles that may, or may not be available in the UK like the ".25 cal AirForce Condor," "357 mm Benjamin Rogue," "50 Cal Sam Yang." All of these are extremely powerful PCP air rifles.All air rifles sold in the U.K. have a power limit of 12 ftlb, no matter who makes it.Don't get caught with one shooting more than that. You will get into big trouble because any more power will put it into the firearms category. If you want something with more power you will have to get a FAC. (Fire Arm Certificate)See the link below that confirms this information. (read the section labeled. (Suitable air rifles for hunting)
New York State does not have a caliber requirement for deer, except to say that rimfire rounds may not be used. A semi auto rifle used for deer hunting may not hold more than six rounds.