fiberglass or cellulose? I have heard negative things about cellulose such as more combustableI'm looking at blowing more insulation into my atticCellulose is less expensive, but is this a quot;you get what you pay for?quot;
Brass is practically idea for firearms cartridgesIt is strong, not brittle unless overworked, has the right amount of give to seal the chamber and the right amount of springiness to rebound and allow easy extractionAs a bonus cases can be reloaded multiple timesSteel is inferior in almost every way to brass except for strength and costThere is no hard evidence that steel cases accelerate wear or break extractors, but they seldom function as reliably and tend to be dirtier due to poor chamber sealing compared to brass Also be aware that some steel cased ammo also uses steel jacketed bulletsI believe that these do accelerate wear of the barrel compared to gilding metal jackets.
I've run uncounted Federal aluminum rounds through my Springfield handguns with zero problemsTarget rounds onlySince self defense rounds do not come in aluminum case, I run good brass rounds.
Short term use is OKConstant or longterm use is less desirable; and in a valuable gun I, personally, wouldn't use steel cased ammo Steel cases are not as elastic as brass; consequently they cause more erosion inside the chamber and flame cutting around the throat.)
i wouldnt use it in a 'nice' gun ive had a case crack before and it mares the chamber and pits it not something you want to happen on a fine firearm but on a beater you just burn ammo up in and arnt worried about its accuracy, barrel condition, ect hell, run the cheap stuff in it .
Most cellulose is treated with a flame retardant (boric acid), so it won't igniteRoof leaks will turn it into mush however, since it's shredded newspaperBlowing fiberglass is about 4-5 times the costWhile cellulose does settle some over time, it's not enough to not use itFiberglass allows alot more air to move through it (moving air less R-value)I've been using both products for 25+ years and I'd use the cellulose in your atticRegardless of which insulation you use, be sure to air-seal any unwanted penetrations through your ceiling (around wires, pipes, or chimney) before you blow insulationUse the proper material/sealant for the taskthe chimney gets hot, so use metal and a high-temp sealant.
